v4.2.2

Update release notes
v4.2.1
2019-10-02 22:12:55 +02:00 · 2019-10-02 22:12:17 +02:00 · 2019-09-20 19:40:48 +02:00 · 2019-09-20 19:40:10 +02:00 · 2019-09-20 19:01:03 +02:00 · 2019-09-20 18:58:17 +02:00
94 changed files with 11008 additions and 514 deletions
@@ -1,200 +0,0 @@
-{
-  "globals": {
-    "self": false
-  },
-  "env": {
-    "node": true
-  },
-  "ecmaFeatures": {
-    // Enabling features that can be implemented without polyfills. Want to avoid polyfills at this time.
-    "arrowFunctions": true,
-    "blockBindings": true,
-    "defaultParams": true,
-    "destructuring": true,
-    "modules": true,
-    "objectLiteralComputedProperties": true,
-    "objectLiteralDuplicateProperties": true,
-    "objectLiteralShorthandMethods": true,
-    "objectLiteralShorthandProperties": true,
-    "restParams": true,
-    "spread": true,
-    "templateStrings": true
-  },
-  "rules": {
-    // Possible Errors //
-    //-----------------//
-
-    "comma-dangle": [2, "never"],
-    "no-cond-assign": [2, "except-parens"],
-
-    // Allow for debugging
-    "no-console": 1,
-
-    "no-constant-condition": 2,
-    "no-control-regex": 2,
-
-    // Allow for debugging
-    "no-debugger": 1,
-
-    "no-dupe-args": 2,
-    "no-dupe-keys": 2,
-    "no-duplicate-case": 2,
-    "no-empty": 2,
-    "no-empty-character-class": 2,
-    "no-ex-assign": 2,
-    "no-extra-boolean-cast": 2,
-    "no-extra-parens": 0,
-    "no-extra-semi": 2,
-    "no-func-assign": 0,
-
-    // Stylistic... might consider disallowing in the future
-    "no-inner-declarations": 0,
-
-    "no-invalid-regexp": 2,
-    "no-irregular-whitespace": 2,
-    "no-negated-in-lhs": 2,
-    "no-obj-calls": 2,
-    "no-regex-spaces": 2,
-    "quote-props": [2, "as-needed", {"keywords": true}],
-    "no-sparse-arrays": 0,
-
-    // Optimizer and coverage will handle/highlight this and can be useful for debugging
-    "no-unreachable": 1,
-
-    "use-isnan": 2,
-    "valid-jsdoc": 0,
-    "valid-typeof": 2,
-
-
-    // Best Practices //
-    //----------------//
-    "block-scoped-var": 0,
-    "complexity": 0,
-    "consistent-return": 0,
-    "curly": 2,
-    "default-case": 1,
-    "dot-notation": [2, {"allowKeywords": false}],
-    "eqeqeq": 0,
-    "guard-for-in": 1,
-    "no-alert": 2,
-    "no-caller": 2,
-    "no-div-regex": 1,
-    "no-else-return": 0,
-    "no-empty-label": 2,
-    "no-eq-null": 0,
-    "no-eval": 2,
-    "no-extend-native": 2,
-    "no-extra-bind": 2,
-    "no-fallthrough": 2,
-    "no-floating-decimal": 2,
-    "no-implied-eval": 2,
-    "no-iterator": 2,
-    "no-labels": 2,
-    "no-lone-blocks": 2,
-    "no-loop-func": 2,
-    "no-multi-spaces": 2,
-    "no-multi-str": 1,
-    "no-native-reassign": 2,
-    "no-new": 2,
-    "no-new-func": 2,
-    "no-new-wrappers": 2,
-    "no-octal": 2,
-    "no-octal-escape": 2,
-    "no-param-reassign": 0,
-    "no-process-env": 2,
-    "no-proto": 2,
-    "no-redeclare": 2,
-    "no-return-assign": 2,
-    "no-script-url": 2,
-    "no-self-compare": 2,
-    "no-sequences": 2,
-    "no-throw-literal": 2,
-    "no-unused-expressions": 2,
-    "no-void": 0,
-    "no-warning-comments": 1,
-    "no-with": 2,
-    "radix": 2,
-    "vars-on-top": 0,
-    "wrap-iife": 2,
-    "yoda": 0,
-
-
-    // Strict //
-    //--------//
-    "strict": 0,
-
-
-    // Variables //
-    //-----------//
-    "no-catch-shadow": 2,
-    "no-delete-var": 2,
-    "no-label-var": 2,
-    "no-shadow": 0,
-    "no-shadow-restricted-names": 2,
-    "no-undef": 2,
-    "no-undef-init": 2,
-    "no-undefined": 0,
-    "no-unused-vars": [2, {"vars": "all", "args": "after-used"}],    
-    "no-use-before-define": [2, "nofunc"],
-
-
-    // Node.js //
-    //---------//
-    // Others left to environment defaults
-    "no-mixed-requires": 0,
-
-
-    // Stylistic //
-    //-----------//
-    "indent": 0,
-    "brace-style": [2, "1tbs", {"allowSingleLine": true}],
-    "camelcase": 2,
-    "comma-spacing": [2, {"before": false, "after": true}],
-    "comma-style": [2, "last"],
-    "consistent-this": [1, "self"],
-    "eol-last": 2,
-    "func-names": 0,
-    "func-style": [2, "declaration"],
-    "key-spacing": [2, {
-        "beforeColon": false,
-        "afterColon": true
-    }],
-    "max-nested-callbacks": 0,
-    "new-cap": 2,
-    "new-parens": 2,
-    "newline-after-var": 0,
-    "no-array-constructor": 2,
-    "no-continue": 0,
-    "no-inline-comments": 0,
-    "no-lonely-if": 2,
-    "no-mixed-spaces-and-tabs": 2,
-    "no-multiple-empty-lines": 0,
-    "no-nested-ternary": 1,
-    "no-new-object": 2,
-    "no-spaced-func": 2,
-    "no-ternary": 0,
-    "no-trailing-spaces": 2,
-    "no-underscore-dangle": 0,
-    "no-extra-parens": [2, "functions"],
-    "one-var": 0,
-    "operator-assignment": 0,
-    "padded-blocks": 0,
-    "quote-props": 0,
-    "quotes": [2, "single", "avoid-escape"],
-    "semi": 2,
-    "semi-spacing": [2, {"before": false, "after": true}],
-    "sort-vars": 0,
-    "space-after-keywords": [2, "always"],
-    "space-before-blocks": [2, "always"],
-    "space-before-function-paren": [2, {"anonymous": "never", "named": "never"}],
-    "space-in-brackets": 0,
-    "space-in-parens": [2, "never"],
-    "space-infix-ops": 2,
-    "space-return-throw-case": 2,
-    "space-unary-ops": 2,
-    "spaced-comment": [2, "always", {"markers": [","]}],
-    "wrap-regex": 1,
-
-    "no-var": 1
-  }
-}
@@ -0,0 +1,129 @@
+module.exports = {
+  "extends": "eslint:recommended",
+  "globals": {
+    "self": false
+  },
+  "env": {
+    "node": true
+  },
+  "ecmaFeatures": {
+    // Enabling features that can be implemented without polyfills. Want to avoid polyfills at this time.
+    "arrowFunctions": true,
+    "blockBindings": true,
+    "defaultParams": true,
+    "destructuring": true,
+    "modules": true,
+    "objectLiteralComputedProperties": true,
+    "objectLiteralDuplicateProperties": true,
+    "objectLiteralShorthandMethods": true,
+    "objectLiteralShorthandProperties": true,
+    "restParams": true,
+    "spread": true,
+    "templateStrings": true
+  },
+  "rules": {
+    // overrides eslint:recommended defaults
+    "no-sparse-arrays": "off",
+    "no-func-assign": "off",
+    "no-console": "warn",
+    "no-debugger": "warn",
+    "no-unreachable": "warn",
+
+    // Possible Errors //
+    //-----------------//
+    "no-unsafe-negation": "error",
+
+
+    // Best Practices //
+    //----------------//
+    "curly": "error",
+    "default-case": "warn",
+    "dot-notation": ["error", { "allowKeywords": false }],
+    "guard-for-in": "warn",
+    "no-alert": "error",
+    "no-caller": "error",
+    "no-div-regex": "warn",
+    "no-eval": "error",
+    "no-extend-native": "error",
+    "no-extra-bind": "error",
+    "no-floating-decimal": "error",
+    "no-implied-eval": "error",
+    "no-iterator": "error",
+    "no-labels": "error",
+    "no-lone-blocks": "error",
+    "no-loop-func": "error",
+    "no-multi-spaces": "error",
+    "no-multi-str": "warn",
+    "no-global-assign": "error",
+    "no-new": "error",
+    "no-new-func": "error",
+    "no-new-wrappers": "error",
+    "no-octal-escape": "error",
+    "no-process-env": "error",
+    "no-proto": "error",
+    "no-return-assign": "error",
+    "no-script-url": "error",
+    "no-self-compare": "error",
+    "no-sequences": "error",
+    "no-throw-literal": "error",
+    "no-unused-expressions": "error",
+    "no-warning-comments": "warn",
+    "no-with": "error",
+    "radix": "error",
+    "wrap-iife": "error",
+
+
+    // Variables //
+    //-----------//
+    "no-catch-shadow": "error",
+    "no-label-var": "error",
+    "no-shadow-restricted-names": "error",
+    "no-undef-init": "error",
+    "no-use-before-define": ["error", "nofunc"],
+
+
+    // Stylistic Issues //
+    //------------------//
+    "comma-dangle": ["error", "never"],
+    "quote-props": ["error", "as-needed", { "keywords": true, "unnecessary": false }],
+    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
+    "camelcase": "error",
+    "comma-spacing": ["error", { "before": false, "after": true }],
+    "comma-style": ["error", "last"],
+    "consistent-this": ["warn", "self"],
+    "eol-last": "error",
+    "func-style": ["error", "declaration"],
+    "key-spacing": ["error", {
+      "beforeColon": false,
+      "afterColon": true
+    }],
+    "new-cap": "error",
+    "new-parens": "error",
+    "no-array-constructor": "error",
+    "no-lonely-if": "error",
+    "no-mixed-spaces-and-tabs": "error",
+    "no-nested-ternary": "warn",
+    "no-new-object": "error",
+    "no-spaced-func": "error",
+    "no-trailing-spaces": "error",
+    "no-extra-parens": ["error", "functions"],
+    "quotes": ["error", "single", "avoid-escape"],
+    "semi": "error",
+    "semi-spacing": ["error", { "before": false, "after": true }],
+    "keyword-spacing": "error",
+    "space-before-blocks": ["error", "always"],
+    "space-before-function-paren": ["error", { "anonymous": "never", "named": "never" }],
+    "space-in-parens": ["error", "never"],
+    "space-infix-ops": "error",
+    "space-unary-ops": "error",
+    "spaced-comment": ["error", "always", { "markers": [","] }],
+    "wrap-regex": "warn",
+
+    // ECMAScript 6 //
+    //--------------//
+    "no-var": "warn"
+  },
+  "parserOptions": {
+    "sourceType": "module"
+  }
+}
@@ -0,0 +1,6 @@
+# Handlebars-template fixtures in test cases need deterministic eol
+*.handlebars text eol=lf
+*.hbs text eol=lf
+
+# Lexer files as well
+*.l text eol=lf
@@ -10,3 +10,6 @@ node_modules
 *.sublime-workspace
 npm-debug.log
 sauce_connect.log*
+.idea
+yarn-error.log
+/handlebars-release.tgz
@@ -1,2 +1,2 @@
 instrumentation:
-    excludes: ['**/spec/**']
+    excludes: ['**/spec/**', '**/handlebars/compiler/parser.js']
@@ -1,25 +0,0 @@
-.DS_Store
-.gitignore
-.rvmrc
-.eslintrc
-.travis.yml
-.rspec
-Gemfile
-Gemfile.lock
-Rakefile
-Gruntfile.js
-*.gemspec
-*.nuspec
-*.log
-bench/*
-configurations/*
-components/*
-coverage/*
-dist/cdnjs/*
-dist/components/*
-spec/*
-src/*
-tasks/*
-tmp/*
-publish/*
-vendor/*
@@ -13,7 +13,7 @@ env:
  - secure: Nm4AgSfsgNB21kgKrF9Tl7qVZU8YYREhouQunFracTcZZh2NZ2XH5aHuSiXCj88B13Cr/jGbJKsZ4T3QS3wWYtz6lkyVOx3H3iI+TMtqhD9RM3a7A4O+4vVN8IioB2YjhEu0OKjwgX5gp+0uF+pLEi7Hpj6fupD3AbbL5uYcKg8=
 matrix:
  include:
-  - node_js: '0.10'
+  - node_js: '10'
    env:
    - PUBLISH=true
    - secure: pLTzghtVll9yGKJI0AaB0uI8GypfWxLTaIB0ZL8//yN3nAEIKMhf/RRilYTsn/rKj2NUa7vt2edYILi3lttOUlCBOwTc9amiRms1W8Lwr/3IdWPeBLvLuH1zNJRm2lBAwU4LBSqaOwhGaxOQr6KHTnWudhNhgOucxpZfvfI/dFw=
@@ -6,10 +6,16 @@ Please see our [FAQ](https://github.com/wycats/handlebars.js/blob/master/FAQ.md)

 Should you run into other issues with the project, please don't hesitate to let us know by filing an [issue][issue]! In general we are going to ask for an example of the problem failing, which can be as simple as a jsfiddle/jsbin/etc. We've put together a jsfiddle [template][jsfiddle] to ease this. (We will keep this link up to date as new releases occur, so feel free to check back here)

-Pull requests containing only failing thats demonstrating the issue are welcomed and this also helps ensure that your issue won't regress in the future once it's fixed.
+Pull requests containing only failing tests demonstrating the issue are welcomed and this also helps ensure that your issue won't regress in the future once it's fixed.

 Documentation issues on the handlebarsjs.com site should be reported on [handlebars-site](https://github.com/wycats/handlebars-site).

+## Branches
+
+* The branch `4.x` contains the currently released version. Bugfixes should be made in this branch.
+* The branch `master` contains the next version. A release date is not yet specified. Maintainers
+  should merge the branch `4.x` into the master branch regularly.
+
 ## Pull Requests

 We also accept [pull requests][pull-request]!
@@ -42,6 +48,25 @@ The `grunt dev` implements watching for tests and allows for in browser testing
 If you notice any problems, please report them to the GitHub issue tracker at
 [http://github.com/wycats/handlebars.js/issues](http://github.com/wycats/handlebars.js/issues).

+##Running Tests
+
+To run tests locally, first install all dependencies.
+```sh
+npm install
+```
+
+Clone the mustache specs into the spec/mustache folder.
+```sh
+cd spec
+rm -r mustache
+git clone https://github.com/mustache/spec.git mustache
+```
+
+From the root directory, run the tests.
+```sh
+npm test
+```
+
 ## Ember testing

 The current ember distribution should be tested as part of the handlebars release process. This requires building the `handlebars-source` gem locally and then executing the ember test script.
@@ -56,7 +81,9 @@ npm link handlebars
 npm test
 ```

-## Releasing
+## Releasing the latest version
+
+*When releasing a previous version of Handlebars, please look into the CONTRIBUNG.md in the corresponding branch.*

 Handlebars utilizes the [release yeoman generator][generator-release] to perform most release tasks.

@@ -72,9 +99,17 @@ gem build handlebars-source.gemspec
 gem push handlebars-source-*.gem
 ```

-After this point the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.
+After the release, you should check that all places have really been updated. Especially verify that the `latest`-tags
+in those places still point to the latest version
+
+* [The npm-package](https://www.npmjs.com/package/handlebars) (check latest-tag)
+* [The bower package](https://github.com/components/handlebars.js) (check the package.json)
+* [The AWS S3 Bucket](http://builds.handlebarsjs.com.s3.amazonaws.com/) (check latest-tag)
+* [RubyGems](https://rubygems.org/gems/handlebars-source)
+
+When everything is OK, the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.

 [generator-release]: https://github.com/walmartlabs/generator-release
 [pull-request]: https://github.com/wycats/handlebars.js/pull/new/master
 [issue]: https://github.com/wycats/handlebars.js/issues/new
-[jsfiddle]: http://jsfiddle.net/9D88g/46/
+[jsfiddle]: https://jsfiddle.net/9D88g/180/
@@ -5,24 +5,25 @@ module.exports = function(grunt) {
    pkg: grunt.file.readJSON('package.json'),

    eslint: {
-      options: {
-      },
      files: [
        '*.js',
        'bench/**/*.js',
        'tasks/**/*.js',
        'lib/**/!(*.min|parser).js',
-        'spec/**/!(*.amd|json2|require).js'
+        'spec/**/!(*.amd|json2|require).js',
+        'integration-testing/multi-nodejs-test/*.js',
+        'integration-testing/webpack-test/*.js',
+        'integration-testing/webpack-test/src/*.js'
      ]
    },

-    clean: ['tmp', 'dist', 'lib/handlebars/compiler/parser.js'],
+    clean: ['tmp', 'dist', 'lib/handlebars/compiler/parser.js', 'integration-testing/**/node_modules'],

    copy: {
      dist: {
        options: {
          processContent: function(content) {
-            return grunt.template.process('/*!\n\n <%= pkg.name %> v<%= pkg.version %>\n\n<%= grunt.file.read("LICENSE") %>\n@license\n*/\n')
+            return grunt.template.process('/**!\n\n @license\n <%= pkg.name %> v<%= pkg.version %>\n\n<%= grunt.file.read("LICENSE") %>\n*/\n')
                + content;
          }
        },
@@ -125,7 +126,7 @@ module.exports = function(grunt) {
      options: {
        mangle: true,
        compress: true,
-        preserveComments: 'some'
+        preserveComments: /(?:^!|@(?:license|preserve|cc_on))/
      },
      dist: {
        files: [{
@@ -166,11 +167,10 @@ module.exports = function(grunt) {
          browsers: [
            {browserName: 'chrome'},
            {browserName: 'firefox', platform: 'Linux'},
-            {browserName: 'safari', version: 7, platform: 'OS X 10.9'},
-            {browserName: 'safari', version: 6, platform: 'OS X 10.8'},
+            // {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
+            // {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
            {browserName: 'internet explorer', version: 11, platform: 'Windows 8.1'},
-            {browserName: 'internet explorer', version: 10, platform: 'Windows 8'},
-            {browserName: 'internet explorer', version: 9, platform: 'Windows 7'}
+            {browserName: 'internet explorer', version: 10, platform: 'Windows 8'}
          ]
        }
      },
@@ -187,6 +187,20 @@ module.exports = function(grunt) {
      }
    },

+    bgShell: {
+      checkTypes: {
+        cmd: 'npm run checkTypes',
+        bg: false,
+        fail: true
+      },
+      integrationTests: {
+        cmd: './integration-testing/run-integration-tests.sh',
+        bg: false,
+        fail: true
+      }
+
+    },
+
    watch: {
      scripts: {
        options: {
@@ -202,6 +216,7 @@ module.exports = function(grunt) {
  // Build a new version of the library
  this.registerTask('build', 'Builds a distributable version of the current project', [
                    'eslint',
+                    'bgShell:checkTypes',
                    'parser',
                    'node',
                    'globals']);
@@ -211,7 +226,7 @@ module.exports = function(grunt) {
  this.registerTask('globals', ['webpack']);
  this.registerTask('tests', ['concat:tests']);

-  this.registerTask('release', 'Build final packages', ['eslint', 'amd', 'uglify', 'copy:dist', 'copy:components', 'copy:cdnjs']);
+  this.registerTask('release', 'Build final packages', ['eslint', 'amd', 'uglify', 'test:min', 'copy:dist', 'copy:components', 'copy:cdnjs']);

  // Load tasks from npm
  grunt.loadNpmTasks('grunt-contrib-clean');
@@ -222,6 +237,7 @@ module.exports = function(grunt) {
  grunt.loadNpmTasks('grunt-contrib-uglify');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-babel');
+  grunt.loadNpmTasks('grunt-bg-shell');
  grunt.loadNpmTasks('grunt-eslint');
  grunt.loadNpmTasks('grunt-saucelabs');
  grunt.loadNpmTasks('grunt-webpack');
@@ -231,8 +247,9 @@ module.exports = function(grunt) {
  grunt.registerTask('bench', ['metrics']);
  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);

-  grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
+  grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'bgShell:integrationTests', 'sauce', 'metrics', 'publish:latest'] : ['default']);

  grunt.registerTask('dev', ['clean', 'connect', 'watch']);
  grunt.registerTask('default', ['clean', 'build', 'test', 'release']);
+  grunt.registerTask('integration-tests', ['default', 'bgShell:integrationTests']);
 };
@@ -1,4 +1,4 @@
-Copyright (C) 2011-2015 by Yehuda Katz
+Copyright (C) 2011-2017 by Yehuda Katz

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -1,4 +1,5 @@
 [![Travis Build Status](https://img.shields.io/travis/wycats/handlebars.js/master.svg)](https://travis-ci.org/wycats/handlebars.js)
+[![Appveyor Build Status](https://ci.appveyor.com/api/projects/status/github/wycats/handlebars.js?branch=master&svg=true)](https://ci.appveyor.com/project/wycats/handlebars-js)
 [![Selenium Test Status](https://saucelabs.com/buildstatus/handlebars)](https://saucelabs.com/u/handlebars)

 Handlebars.js
@@ -121,6 +122,7 @@ Handlebars in the Wild
 * [Assemble](http://assemble.io), by [@jonschlinkert](https://github.com/jonschlinkert)
  and [@doowb](https://github.com/doowb), is a static site generator that uses Handlebars.js
  as its template engine.
+* [Cory](https://github.com/leo/cory), by [@leo](https://github.com/leo), is another tiny static site generator
 * [CoSchedule](http://coschedule.com) An editorial calendar for WordPress that uses Handlebars.js
 * [dashbars](https://github.com/pismute/dashbars) A modern helper library for Handlebars.js.
 * [Ember.js](http://www.emberjs.com) makes Handlebars.js the primary way to
@@ -148,7 +150,9 @@ Handlebars in the Wild
  templating engine, extending it with automatic data binding support.
 * [YUI](http://yuilibrary.com/yui/docs/handlebars/) implements a port of handlebars
 * [Swag](https://github.com/elving/swag) by [@elving](https://github.com/elving) is a growing collection of helpers for handlebars.js. Give your handlebars.js templates some swag son!
-* [DOMBars](https://github.com/blakeembrey/dombars) is a DOM-based templating engine built on the Handlebars parser and runtime
+* [DOMBars](https://github.com/blakeembrey/dombars) is a DOM-based templating engine built on the Handlebars parser and runtime **DEPRECATED**
+* [promised-handlebars](https://github.com/nknapp/promised-handlebars) is a wrapper for Handlebars that allows helpers to return Promises.
+* [just-handlebars-helpers](https://github.com/leapfrogtechnology/just-handlebars-helpers) A fully tested lightweight package with common Handlebars helpers.

 External Resources
 ------------------
@@ -0,0 +1,37 @@
+# Test against these versions of Node.js
+environment:
+  matrix:
+    - nodejs_version: "10"
+
+platform:
+  - x64
+
+# Install scripts (runs after repo cloning)
+install:
+  # Get the latest stable version of Node.js
+  - ps: Install-Product node $env:nodejs_version $env:platform
+  # Clone submodules (mustache spec)
+  - cmd: git submodule update --init --recursive
+  # Install modules
+  - cmd: npm install
+  - cmd: npm install -g grunt-cli
+
+
+# Post-install test scripts
+test_script:
+  # Output useful info for debugging
+  - cmd: node --version
+  - cmd: npm --version
+  # Run tests
+  - cmd: grunt --stack travis
+
+# Don't actually build
+build: off
+
+on_failure:
+  - cmd: 7z a coverage.zip coverage
+  - cmd: appveyor PushArtifact coverage.zip
+
+
+# Set build version format here instead of in the admin panel
+version: "{build}"
@@ -1,4 +1,4 @@
-var async = require('async'),
+var async = require('neo-async'),
    fs = require('fs'),
    zlib = require('zlib');

@@ -5,7 +5,7 @@ module.exports = {
    header: function() {
      return 'Colors';
    },
-    hasItems: true,   // To make things fairer in mustache land due to no `{{if}}` construct on arrays
+    hasItems: true, // To make things fairer in mustache land due to no `{{if}}` construct on arrays
    items: [
      {name: 'red', current: true, url: '#Red'},
      {name: 'green', current: false, url: '#Green'},
@@ -11,7 +11,7 @@ function BenchWarmer() {
  this.errors = {};
 }

-var print = require('sys').print;
+var print = require('util').print;

 BenchWarmer.prototype = {
  winners: function(benches) {
@@ -1,6 +1,6 @@
 {
  "name": "handlebars",
-  "version": "4.0.2",
+  "version": "4.2.2",
  "main": "handlebars.js",
  "license": "MIT",
  "dependencies": {}
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.0.2</version>
+		<version>4.2.2</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
@@ -0,0 +1,20 @@
+{
+  "name": "handlebars",
+  "version": "4.2.2",
+  "license": "MIT",
+  "jspm": {
+    "main": "handlebars",
+    "shim": {
+      "handlebars": {
+        "exports": "Handlebars"
+      }
+    },
+    "files": [
+      "handlebars.js",
+      "handlebars.runtime.js"
+    ],
+    "buildConfig": {
+      "minify": true
+    }
+  }
+}
@@ -66,7 +66,7 @@ interface MustacheStatement <: Statement {

 interface BlockStatement <: Statement {
    type: "BlockStatement";
-    path: PathExpression;
+    path: PathExpression | Literal;
    params: [ Expression ];
    hash: Hash;

@@ -296,21 +296,43 @@ The `Handlebars.JavaScriptCompiler` object has a number of methods that may be c
 - `initializeBuffer()`
    Allows for buffers other than the default string buffer to be used. Generally needs to be paired with a custom `appendToBuffer` implementation.

+### Example for the compiler api.
+
+This example changes all lookups of properties are performed by a helper (`lookupLowerCase`) which looks for `test` if `{{Test}}` occurs in the template. This is just to illustrate how compiler behavior can be change.
+
+There is also [a jsfiddle with this code](https://jsfiddle.net/9D88g/162/) if you want to play around with it.
+
+
 ```javascript
 function MyCompiler() {
  Handlebars.JavaScriptCompiler.apply(this, arguments);
 }
-MyCompiler.prototype = Object.create(Handlebars.JavaScriptCompiler);
+MyCompiler.prototype = new Handlebars.JavaScriptCompiler();

-MyCompiler.nameLookup = function(parent, name, type) {
-  if (type === 'partial') {
-    return 'MyPartialList[' + JSON.stringify(name) ']';
+// Use this compile to compile BlockStatment-Blocks
+MyCompiler.prototype.compiler = MyCompiler
+
+MyCompiler.prototype.nameLookup = function(parent, name, type) {
+  if (type === 'context') {
+    return this.source.functionCall('helpers.lookupLowerCase', '', [parent, JSON.stringify(name)])
  } else {
    return Handlebars.JavaScriptCompiler.prototype.nameLookup.call(this, parent, name, type);
  }
-};
+}

 var env = Handlebars.create();
+env.registerHelper('lookupLowerCase', function(parent, name) {
+  return parent[name.toLowerCase()]
+})
+
 env.JavaScriptCompiler = MyCompiler;
-env.compile('my template');
+
+var template = env.compile('{{#each Test}} ({{Value}}) {{/each}}');
+console.log(template({
+  test: [ 
+    {value: 'a'},
+    {value: 'b'},
+    {value: 'c'}
+    ]
+}));
 ```
@@ -2,9 +2,9 @@

 Decorators allow for blocks to be annotated with metadata or wrapped in functionality prior to execution of the block. This may be used to communicate with the containing helper or to setup a particular state in the system prior to running the block.

-Decorators are registered through similar methods as helpers, `registerDecorators` and `unregisterDecorators`. These can then be referenced via the friendly name in the template using the `{{* decorator}}` and `{{#* decorator}}{/decorator}}` syntaxes. These syntaxs are derivitives of the normal mustache syntax and as such have all of the same argument and whitespace behaviors.
+Decorators are registered through similar methods as helpers, `registerDecorators` and `unregisterDecorators`. These can then be referenced via the friendly name in the template using the `{{* decorator}}` and `{{#* decorator}}{/decorator}}` syntaxes. These syntaxes are derivatives of the normal mustache syntax and as such have all of the same argument and whitespace behaviors.

-Decorators are executed when the block program is instantiated and are passed `(program, props, container, context, data, blockParams, depths)`
+Decorators are executed when the block program is instantiated and are passed `(program, props, container, context, data, blockParams, depths)`.

 - `program`: The block to wrap
 - `props`: Object used to set metadata on the final function. Any values set on this object will be set on the function, regardless of if the original function is replaced or not. Metadata should be applied using this object as values applied to `program` may be masked by subsequent decorators that may wrap `program`.
@@ -0,0 +1,12 @@
+Add a new integration test by creating a new subfolder
+
+Add a file "test.sh" to that runs the test. "test.sh" should exit with a non-zero exit code 
+and display an error message, if something goes wrong.
+
+* An integration test should reflect real-world setups that use handlebars.
+* It should compile a minimal template and compare the output to an expected output.
+* It should use "../.." as dependency for Handlebars so that the currently built library is used.
+
+Currently, integration tests are only running on Linux, especially in travis-ci.
+
+  
@@ -0,0 +1,12 @@
+module.exports = {
+  "extends": "eslint:recommended",
+  "globals": {
+    "self": false
+  },
+  "env": {
+    "node": true
+  },
+  "rules": {
+    'no-console': 'off'
+  }
+}
@@ -0,0 +1,2 @@
+target
+package-lock.json
@@ -0,0 +1,16 @@
+{
+  "name": "multi-nodejs-test",
+  "version": "1.0.0",
+  "description": "Simple integration test with all relevant NodeJS-versions.",
+  "keywords": [],
+  "author": "Nils Knappmeier",
+  "private": true,
+  "license": "MIT",
+  "dependencies": {
+    "handlebars": "file:../.."
+  },
+  "scripts": {
+    "test": "node run-handlebars.js",
+    "test-precompile": "handlebars precompile-test-template.txt.hbs"
+  }
+}
@@ -0,0 +1 @@
+Author: {{author}}
@@ -0,0 +1,11 @@
+// This test should run successfully with node 0.10++ as long as Handlebars has been compiled before
+var assert = require('assert');
+var Handlebars = require('handlebars');
+
+console.log('Testing built Handlebars with Node version ' + process.version);
+
+var template = Handlebars.compile('Author: {{author}}');
+var output = template({author: 'Yehuda'});
+assert.strictEqual(output, 'Author: Yehuda');
+
+console.log('Success');
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
+# shellcheck disable=SC1090
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+
+# This script tests with precompiler and the built distribution with multiple NodeJS version.
+# The rest of the travis-build will only work with newer NodeJS versions, because the build
+# tools don't support older versions.
+# However, the built distribution should work with older NodeJS versions as well.
+# This test is simple by design. It merely ensures, that calling Handlebars does not fail with old versions.
+# It does (almost) not test for correctness, because that is already done in the mocha-tests.
+# And it does not use any NodeJS based testing framwork to make this part independent of the Node version.
+
+# A list of NodeJS versions is expected as cli-args
+echo "Handlebars should be able to run in various versions of NodeJS"
+for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
+    rm target node_modules package-lock.json -rf
+    mkdir target
+    nvm install "$i"
+    nvm exec "$i" npm install
+    nvm exec "$i" npm run test || exit 1
+    nvm exec "$i" npm run test-precompile || exit 1
+
+    echo Success
+done
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
+
+for i in */test.sh ; do
+  (
+    echo "----------------------------------------"
+    echo "-- Running integration test: $i"
+    echo "----------------------------------------"
+    cd "$( dirname "$i" )" || exit 1
+    ./test.sh || exit 1
+  )
+done
@@ -0,0 +1,11 @@
+{
+  "plugins": [
+    "@roundingwellos/babel-plugin-handlebars-inline-precompile"
+   // "istanbul"
+  ],
+  "presets": [
+    [
+      "@babel/preset-env"
+    ]
+  ]
+}
@@ -0,0 +1,3 @@
+node_modules
+dist
+package-lock.json
@@ -0,0 +1,24 @@
+{
+  "name": "webpack-babel-test",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@babel/core": "^7.5.5",
+    "@babel/preset-env": "^7.5.5",
+    "@roundingwellos/babel-plugin-handlebars-inline-precompile": "^3.0.1",
+    "babel-loader": "^8.0.6",
+    "babel-plugin-istanbul": "^5.2.0",
+    "handlebars": "file:../..",
+    "handlebars-loader": "^1.7.1",
+    "nyc": "^14.1.1",
+    "webpack": "^4.39.3",
+    "webpack-cli": "^3.3.7"
+  },
+  "scripts": {
+    "build": "webpack --config webpack.config.js"
+  }
+}
@@ -0,0 +1,12 @@
+import * as Handlebars from 'handlebars/runtime'
+import hbs from 'handlebars-inline-precompile';
+import {assertEquals} from "../../webpack-test/src/lib/assert";
+
+Handlebars.registerHelper('loud', function(text) {
+    return text.toUpperCase();
+});
+
+const template = hbs`{{loud name}}`;
+const output = template({name: 'yehuda'})
+
+assertEquals(output, 'YEHUDA')
@@ -0,0 +1,5 @@
+export function assertEquals(actual, expected) {
+    if (actual !== expected) {
+        throw new Error(`Expected "${actual}" to equal "${expected}"`);
+    }
+}
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e
+
+# Cleanup: package-lock and "npm ci" is not working with local dependencies
+rm dist package-lock.json -rf
+npm install
+npm run build
+
+for i in dist/*-test.js ; do
+  echo "----------------------"
+  echo "-- Running $i"
+  echo "----------------------"
+  node "$i"
+  echo "Success"
+done
@@ -0,0 +1,32 @@
+const fs = require('fs');
+
+const testFiles = fs.readdirSync('src');
+const entryPoints = {};
+testFiles
+    .filter(file => file.match(/-test.js$/))
+    .forEach(file => {
+        entryPoints[file] = `./src/${file}`;
+    });
+
+module.exports = {
+    entry: entryPoints,
+    output: {
+        filename: '[name]',
+        path: __dirname + '/dist'
+    },
+    module: {
+        rules: [
+            {
+                test: /\.js?$/,
+                exclude: /node_modules/,
+                use: {
+                    loader: 'babel-loader',
+                    options: { cacheDirectory: false },
+                }
+            }
+        ]
+    },
+    optimization: {
+        minimize: false
+    }
+};
@@ -0,0 +1,3 @@
+node_modules
+dist
+package-lock.json
@@ -0,0 +1,21 @@
+{
+  "name": "webpack-test",
+  "description": "Various tests with Handlebars and Webpack",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "build": "webpack --config webpack.config.js",
+    "test": "node dist/main.js"
+  },
+  "private": true,
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {},
+  "devDependencies": {
+    "handlebars": "file:../..",
+    "handlebars-loader": "^1.7.1",
+    "webpack": "^4.39.3",
+    "webpack-cli": "^3.3.7"
+  }
+}
@@ -0,0 +1,6 @@
+import Handlebars from 'handlebars/dist/handlebars';
+
+import {assertEquals} from './lib/assert';
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
@@ -0,0 +1,6 @@
+import Handlebars from 'handlebars';
+import {assertEquals} from './lib/assert';
+
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
@@ -0,0 +1,8 @@
+import {assertEquals} from './lib/assert';
+
+import testTemplate from './test-template.handlebars';
+assertEquals(testTemplate({author: 'Yehuda'}).trim(), 'Author: Yehuda');
+
+
+const testTemplateRequire = require('./test-template.handlebars');
+assertEquals(testTemplateRequire({author: 'Yehuda'}).trim(), 'Author: Yehuda');
@@ -0,0 +1,10 @@
+import * as HandlebarsViaImport from 'handlebars';
+const HandlebarsViaRequire = require('handlebars');
+import {assertEquals} from './lib/assert';
+
+HandlebarsViaImport.registerHelper('loud', function(text) {
+    return text.toUpperCase();
+});
+
+const template = HandlebarsViaRequire.compile('Author: {{loud author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: YEHUDA');
@@ -0,0 +1,6 @@
+import * as Handlebars from 'handlebars/dist/handlebars';
+
+import {assertEquals} from './lib/assert';
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
@@ -0,0 +1,5 @@
+import * as Handlebars from 'handlebars';
+import {assertEquals} from './lib/assert';
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
@@ -0,0 +1,5 @@
+export function assertEquals(actual, expected) {
+    if (actual !== expected) {
+        throw new Error(`Expected "${actual}" to equal "${expected}"`);
+    }
+}
@@ -0,0 +1,2 @@
+Author: {{author}}
+
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e
+
+# Cleanup: package-lock and "npm ci" is not working with local dependencies
+rm dist package-lock.json -rf
+npm install
+npm run build
+
+for i in dist/*-test.js ; do
+  echo "----------------------"
+  echo "-- Running $i"
+  echo "----------------------"
+  node "$i"
+  echo "Success"
+done
@@ -0,0 +1,22 @@
+const fs = require('fs');
+
+const testFiles = fs.readdirSync('src');
+const entryPoints = {};
+testFiles
+    .filter(file => file.match(/-test.js$/))
+    .forEach(file => {
+        entryPoints[file] = `./src/${file}`;
+    });
+
+module.exports = {
+    entry: entryPoints,
+    output: {
+        filename: '[name]',
+        path: __dirname + '/dist'
+    },
+    module: {
+        rules: [
+            {test: /\.handlebars$/, loader: 'handlebars-loader'}
+        ]
+    }
+};
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';

-export const VERSION = '4.0.2';
+export const VERSION = '4.2.2';
 export const COMPILER_REVISION = 7;

 export const REVISION_CHANGES = {
@@ -51,7 +51,7 @@ HandlebarsEnvironment.prototype = {
      extend(this.partials, name);
    } else {
      if (typeof partial === 'undefined') {
-        throw new Exception('Attempting to register a partial as undefined');
+        throw new Exception(`Attempting to register a partial called "${name}" as undefined`);
      }
      this.partials[name] = partial;
    }
@@ -118,7 +118,7 @@ CodeGen.prototype = {
      .replace(/"/g, '\\"')
      .replace(/\n/g, '\\n')
      .replace(/\r/g, '\\r')
-      .replace(/\u2028/g, '\\u2028')   // Per Ecma-262 7.3 + 7.8.4
+      .replace(/\u2028/g, '\\u2028') // Per Ecma-262 7.3 + 7.8.4
      .replace(/\u2029/g, '\\u2029') + '"';
  },

@@ -1,7 +1,7 @@
 /* eslint-disable new-cap */

 import Exception from '../exception';
-import {isArray, indexOf} from '../utils';
+import {isArray, indexOf, extend} from '../utils';
 import AST from './ast';

 const slice = [].slice;
@@ -67,11 +67,11 @@ Compiler.prototype = {
      'lookup': true
    };
    if (knownHelpers) {
+      // the next line should use "Object.keys", but the code has been like this a long time and changing it, might
+      // cause backwards-compatibility issues... It's an old library...
+      // eslint-disable-next-line guard-for-in
      for (let name in knownHelpers) {
-        /* istanbul ignore else */
-        if (name in knownHelpers) {
-          options.knownHelpers[name] = knownHelpers[name];
-        }
+          this.options.knownHelpers[name] = knownHelpers[name];
      }
    }

@@ -488,6 +488,7 @@ export function compile(input, options = {}, env) {
    throw new Exception('You must pass a string or Handlebars AST to Handlebars.compile. You passed ' + input);
  }

+  options = extend({}, options);
  if (!('data' in options)) {
    options.data = true;
  }
@@ -24,7 +24,7 @@ export function SourceLocation(source, locInfo) {

 export function id(token) {
  if (/^\[.*\]$/.test(token)) {
-    return token.substr(1, token.length - 2);
+    return token.substring(1, token.length - 1);
  } else {
    return token;
  }
@@ -38,7 +38,7 @@ export function stripFlags(open, close) {
 }

 export function stripComment(comment) {
-  return comment.replace(/^\{\{~?\!-?-?/, '')
+  return comment.replace(/^\{\{~?!-?-?/, '')
                .replace(/-?-?~?\}\}$/, '');
 }

@@ -47,8 +47,7 @@ export function preparePath(data, parts, loc) {

  let original = data ? '@' : '',
      dig = [],
-      depth = 0,
-      depthString = '';
+      depth = 0;

  for (let i = 0, l = parts.length; i < l; i++) {
    let part = parts[i].part,
@@ -62,7 +61,6 @@ export function preparePath(data, parts, loc) {
        throw new Exception('Invalid path: ' + original, {loc});
      } else if (part === '..') {
        depth++;
-        depthString += '../';
      }
    } else {
      dig.push(part);
@@ -12,7 +12,10 @@ function JavaScriptCompiler() {}
 JavaScriptCompiler.prototype = {
  // PUBLIC API: You can override these methods in a subclass to provide
  // alternative compiled forms for name lookup and buffering semantics
-  nameLookup: function(parent, name /* , type*/) {
+  nameLookup: function(parent, name/* , type*/) {
+    if (name === 'constructor') {
+      return ['(', parent, '.propertyIsEnumerable(\'constructor\') ? ', parent, '.constructor : undefined', ')'];
+    }
    if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
      return [parent, '.', name];
    } else {
@@ -133,7 +136,7 @@ JavaScriptCompiler.prototype = {
      };

      if (this.decorators) {
-        ret.main_d = this.decorators;   // eslint-disable-line camelcase
+        ret.main_d = this.decorators; // eslint-disable-line camelcase
        ret.useDecorators = true;
      }

@@ -209,7 +212,7 @@ JavaScriptCompiler.prototype = {
    // aliases will not be used, but this case is already being run on the client and
    // we aren't concern about minimizing the template size.
    let aliasCount = 0;
-    for (let alias in this.aliases) {    // eslint-disable-line guard-for-in
+    for (let alias in this.aliases) { // eslint-disable-line guard-for-in
      let node = this.aliases[alias];

      if (this.aliases.hasOwnProperty(alias) && node.children && node.referenceCount > 1) {
@@ -776,13 +779,13 @@ JavaScriptCompiler.prototype = {

    for (let i = 0, l = children.length; i < l; i++) {
      child = children[i];
-      compiler = new this.compiler();    // eslint-disable-line new-cap
+      compiler = new this.compiler(); // eslint-disable-line new-cap

-      let index = this.matchExistingProgram(child);
+      let existing = this.matchExistingProgram(child);

-      if (index == null) {
-        this.context.programs.push('');     // Placeholder to prevent name conflicts for nested children
-        index = this.context.programs.length;
+      if (existing == null) {
+        this.context.programs.push(''); // Placeholder to prevent name conflicts for nested children
+        let index = this.context.programs.length;
        child.index = index;
        child.name = 'program' + index;
        this.context.programs[index] = compiler.compile(child, options, this.context, !this.precompile);
@@ -791,12 +794,14 @@ JavaScriptCompiler.prototype = {

        this.useDepths = this.useDepths || compiler.useDepths;
        this.useBlockParams = this.useBlockParams || compiler.useBlockParams;
+        child.useDepths = this.useDepths;
+        child.useBlockParams = this.useBlockParams;
      } else {
-        child.index = index;
-        child.name = 'program' + index;
+        child.index = existing.index;
+        child.name = 'program' + existing.index;

-        this.useDepths = this.useDepths || child.useDepths;
-        this.useBlockParams = this.useBlockParams || child.useBlockParams;
+        this.useDepths = this.useDepths || existing.useDepths;
+        this.useBlockParams = this.useBlockParams || existing.useBlockParams;
      }
    }
  },
@@ -804,7 +809,7 @@ JavaScriptCompiler.prototype = {
    for (let i = 0, len = this.context.environments.length; i < len; i++) {
      let environment = this.context.environments[i];
      if (environment && environment.equals(child)) {
-        return i;
+        return environment;
      }
    }
  },
@@ -984,13 +989,14 @@ JavaScriptCompiler.prototype = {
  setupHelper: function(paramSize, name, blockHelper) {
    let params = [],
        paramsInit = this.setupHelperArgs(name, paramSize, params, blockHelper);
-    let foundHelper = this.nameLookup('helpers', name, 'helper');
+    let foundHelper = this.nameLookup('helpers', name, 'helper'),
+        callContext = this.aliasable(`${this.contextName(0)} != null ? ${this.contextName(0)} : (container.nullContext || {})`);

    return {
      params: params,
      paramsInit: paramsInit,
      name: foundHelper,
-      callParams: [this.contextName(0)].concat(params)
+      callParams: [callContext].concat(params)
    };
  },

@@ -206,7 +206,7 @@ function omitLeft(body, i, multiple) {
    return;
  }

-  // We omit the last node if it's whitespace only and not preceeded by a non-content node.
+  // We omit the last node if it's whitespace only and not preceded by a non-content node.
  let original = current.value;
  current.value = current.value.replace(multiple ? (/\s+$/) : (/[ \t]+$/), '');
  current.leftStripped = current.value !== original;
@@ -24,9 +24,23 @@ function Exception(message, node) {
    Error.captureStackTrace(this, Exception);
  }

-  if (loc) {
-    this.lineNumber = line;
-    this.column = column;
+  try {
+    if (loc) {
+      this.lineNumber = line;
+
+      // Work around issue under safari where we can't directly set the column value
+      /* istanbul ignore next */
+      if (Object.defineProperty) {
+        Object.defineProperty(this, 'column', {
+          value: column,
+          enumerable: true
+        });
+      } else {
+        this.column = column;
+      }
+    }
+  } catch (nop) {
+    /* Ignore if the browser is very particular */
  }
 }

@@ -25,12 +25,6 @@ export default function(instance) {
    }

    function execIteration(field, index, last) {
-      // Don't iterate over undefined values since we can't execute blocks against them
-      // in non-strict (js) mode.
-      if (context[field] == null) {
-        return;
-      }
-
      if (data) {
        data.key = field;
        data.index = index;
@@ -51,7 +45,9 @@ export default function(instance) {
    if (context && typeof context === 'object') {
      if (isArray(context)) {
        for (let j = context.length; i < j; i++) {
-          execIteration(i, i, i === context.length - 1);
+          if (i in context) {
+            execIteration(i, i, i === context.length - 1);
+          }
        }
      } else {
        let priorKey;
@@ -1,5 +1,11 @@
 export default function(instance) {
  instance.registerHelper('lookup', function(obj, field) {
-    return obj && obj[field];
+    if (!obj) {
+      return obj;
+    }
+    if (field === 'constructor' && !obj.propertyIsEnumerable(field)) {
+      return undefined;
+    }
+    return obj[field];
  });
 }
@@ -1,3 +1,5 @@
+import {indexOf} from './utils';
+
 let logger = {
  methodMap: ['debug', 'info', 'warn', 'error'],
  level: 'info',
@@ -5,7 +7,7 @@ let logger = {
  // Maps a given level value to the `methodMap` indexes above.
  lookupLevel: function(level) {
    if (typeof level === 'string') {
-      let levelMap = logger.methodMap.indexOf(level.toLowerCase());
+      let levelMap = indexOf(logger.methodMap, level.toLowerCase());
      if (levelMap >= 0) {
        level = levelMap;
      } else {
@@ -22,10 +24,10 @@ let logger = {

    if (typeof console !== 'undefined' && logger.lookupLevel(logger.level) <= level) {
      let method = logger.methodMap[level];
-      if (!console[method]) {   // eslint-disable-line no-console
+      if (!console[method]) { // eslint-disable-line no-console
        method = 'log';
      }
-      console[method](...message);    // eslint-disable-line no-console
+      console[method](...message); // eslint-disable-line no-console
    }
  }
 };
@@ -8,5 +8,6 @@ export default function(Handlebars) {
    if (root.Handlebars === Handlebars) {
      root.Handlebars = $Handlebars;
    }
+    return Handlebars;
  };
 }
@@ -32,7 +32,7 @@ export function template(templateSpec, env) {
  templateSpec.main.decorator = templateSpec.main_d;

  // Note: Using env.VM references rather than local var references throughout this section to allow
-  // for external users to override these as psuedo-supported APIs.
+  // for external users to override these as pseudo-supported APIs.
  env.VM.checkRevision(templateSpec.compiler);

  function invokePartialWrapper(partial, context, options) {
@@ -124,6 +124,8 @@ export function template(templateSpec, env) {

      return obj;
    },
+    // An empty object to use as replacement for null-contexts
+    nullContext: Object.seal({}),

    noop: env.VM.noop,
    compilerInfo: templateSpec.compiler
@@ -140,7 +142,7 @@ export function template(templateSpec, env) {
        blockParams = templateSpec.useBlockParams ? [] : undefined;
    if (templateSpec.useDepths) {
      if (options.depths) {
-        depths = context !== options.depths[0] ? [context].concat(options.depths) : options.depths;
+        depths = context != options.depths[0] ? [context].concat(options.depths) : options.depths;
      } else {
        depths = [context];
      }
@@ -187,7 +189,7 @@ export function template(templateSpec, env) {
 export function wrapProgram(container, i, fn, data, declaredBlockParams, blockParams, depths) {
  function prog(context, options = {}) {
    let currentDepths = depths;
-    if (depths && context !== depths[0]) {
+    if (depths && context != depths[0] && !(context === container.nullContext && depths[0] === null)) {
      currentDepths = [context].concat(depths);
    }

@@ -207,6 +209,9 @@ export function wrapProgram(container, i, fn, data, declaredBlockParams, blockPa
  return prog;
 }

+/**
+ * This is currently part of the official API, therefore implementation details should not be changed.
+ */
 export function resolvePartial(partial, context, options) {
  if (!partial) {
    if (options.name === '@partial-block') {
@@ -223,6 +228,8 @@ export function resolvePartial(partial, context, options) {
 }

 export function invokePartial(partial, context, options) {
+  // Use the current closure context to save the partial-block if this partial
+  const currentPartialBlock = options.data && options.data['partial-block'];
  options.partial = true;
  if (options.ids) {
    options.data.contextPath = options.ids[0] || options.data.contextPath;
@@ -230,10 +237,19 @@ export function invokePartial(partial, context, options) {

  let partialBlock;
  if (options.fn && options.fn !== noop) {
-    partialBlock = options.data['partial-block'] = options.fn;
+    options.data = createFrame(options.data);
+    // Wrapper function to get access to currentPartialBlock from the closure
+    let fn = options.fn;
+    partialBlock = options.data['partial-block'] = function partialBlockWrapper(context, options = {}) {

-    if (partialBlock.partials) {
-      options.partials = Utils.extend({}, options.partials, partialBlock.partials);
+      // Restore the partial-block from the closure for the execution of the block
+      // i.e. the part inside the block of the partial call.
+      options.data = createFrame(options.data);
+      options.data['partial-block'] = currentPartialBlock;
+      return fn(context, options);
+    };
+    if (fn.partials) {
+      options.partials = Utils.extend({}, options.partials, fn.partials);
    }
  }

@@ -15,7 +15,7 @@ function escapeChar(chr) {
  return escape[chr];
 }

-export function extend(obj /* , ...source */) {
+export function extend(obj/* , ...source */) {
  for (let i = 1; i < arguments.length; i++) {
    for (let key in arguments[i]) {
      if (Object.prototype.hasOwnProperty.call(arguments[i], key)) {
@@ -1,10 +1,10 @@
 /* eslint-disable no-console */
-import Async from 'async';
+import Async from 'neo-async';
 import fs from 'fs';
 import * as Handlebars from './handlebars';
 import {basename} from 'path';
 import {SourceMapConsumer, SourceNode} from 'source-map';
-import uglify from 'uglify-js';
+

 module.exports.loadTemplates = function(opts, callback) {
  loadStrings(opts, function(err, strings) {
@@ -60,7 +60,7 @@ function loadStrings(opts, callback) {

 function loadFiles(opts, callback) {
  // Build file extension pattern
-  let extension = (opts.extension || 'handlebars').replace(/[\\^$*+?.():=!|{}\-\[\]]/g, function(arg) { return '\\' + arg; });
+  let extension = (opts.extension || 'handlebars').replace(/[\\^$*+?.():=!|{}\-[\]]/g, function(arg) { return '\\' + arg; });
  extension = new RegExp('\\.' + extension + '$');

  let ret = [],
@@ -235,7 +235,6 @@ module.exports.cli = function(opts) {
    }
  }

-
  if (opts.map) {
    output.add('\n//# sourceMappingURL=' + opts.map + '\n');
  }
@@ -244,15 +243,7 @@ module.exports.cli = function(opts) {
  output.map = output.map + '';

  if (opts.min) {
-    output = uglify.minify(output.code, {
-      fromString: true,
-
-      outSourceMap: opts.map,
-      inSourceMap: JSON.parse(output.map)
-    });
-    if (opts.map) {
-      output.code += '\n//# sourceMappingURL=' + opts.map + '\n';
-    }
+    output = minify(output, opts.map);
  }

  if (opts.map) {
@@ -274,3 +265,34 @@ function arrayCast(value) {
  }
  return value;
 }
+
+/**
+ * Run uglify to minify the compiled template, if uglify exists in the dependencies.
+ *
+ * We are using `require` instead of `import` here, because es6-modules do not allow
+ * dynamic imports and uglify-js is an optional dependency. Since we are inside NodeJS here, this
+ * should not be a problem.
+ *
+ * @param {string} output the compiled template
+ * @param {string} sourceMapFile the file to write the source map to.
+ */
+function minify(output, sourceMapFile) {
+  try {
+    // Try to resolve uglify-js in order to see if it does exist
+    require.resolve('uglify-js');
+  } catch (e) {
+    if (e.code !== 'MODULE_NOT_FOUND') {
+      // Something else seems to be wrong
+      throw e;
+    }
+    // it does not exist!
+    console.error('Code minimization is disabled due to missing uglify-js dependency');
+    return output;
+  }
+  return require('uglify-js').minify(output.code, {
+    sourceMap: {
+      content: output.map,
+      url: sourceMapFile
+    }
+  });
+}
@@ -1,7 +1,7 @@
 {
  "name": "handlebars",
  "barename": "handlebars",
-  "version": "4.0.2",
+  "version": "4.2.2",
  "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
  "homepage": "http://www.handlebarsjs.com/",
  "keywords": [
@@ -21,46 +21,57 @@
    "node": ">=0.4.7"
  },
  "dependencies": {
-    "async": "^1.4.0",
+    "neo-async": "^2.6.0",
    "optimist": "^0.6.1",
-    "source-map": "^0.4.4"
+    "source-map": "^0.6.1"
  },
  "optionalDependencies": {
-    "uglify-js": "~2.4"
+    "uglify-js": "^3.1.4"
  },
  "devDependencies": {
    "aws-sdk": "^2.1.49",
    "babel-loader": "^5.0.0",
    "babel-runtime": "^5.1.10",
    "benchmark": "~1.0",
+    "dtslint": "^0.5.5",
    "dustjs-linkedin": "^2.0.2",
    "eco": "~1.1.0-rc-3",
-    "grunt": "~0.4.1",
+    "grunt": "^1.0.3",
    "grunt-babel": "^5.0.0",
-    "grunt-cli": "~0.1.10",
-    "grunt-contrib-clean": "0.x",
-    "grunt-contrib-concat": "0.x",
-    "grunt-contrib-connect": "0.x",
-    "grunt-contrib-copy": "0.x",
-    "grunt-contrib-requirejs": "0.x",
-    "grunt-contrib-uglify": "0.x",
-    "grunt-contrib-watch": "0.x",
-    "grunt-eslint": "^17.1.0",
-    "grunt-saucelabs": "8.x",
+    "grunt-bg-shell": "^2.3.3",
+    "grunt-cli": "^1",
+    "grunt-contrib-clean": "^1",
+    "grunt-contrib-concat": "^1",
+    "grunt-contrib-connect": "^1",
+    "grunt-contrib-copy": "^1",
+    "grunt-contrib-requirejs": "^1",
+    "grunt-contrib-uglify": "^1",
+    "grunt-contrib-watch": "^1.1.0",
+    "grunt-eslint": "^20.1.0",
+    "grunt-saucelabs": "github:nknapp/grunt-saucelabs",
    "grunt-webpack": "^1.0.8",
    "istanbul": "^0.3.0",
    "jison": "~0.3.0",
-    "mocha": "~1.20.0",
+    "mocha": "^5",
    "mock-stdin": "^0.3.0",
    "mustache": "^2.1.3",
    "semver": "^5.0.1",
-    "underscore": "^1.5.1"
+    "typescript": "^3.4.3",
+    "underscore": "^1.5.1",
+    "webpack": "^1.12.6",
+    "webpack-dev-server": "^1.12.1"
  },
  "main": "lib/index.js",
+  "types": "types/index.d.ts",
+  "browser": {
+    ".": "./dist/cjs/handlebars.js",
+    "./runtime": "./dist/cjs/handlebars.runtime.js"
+  },
  "bin": {
    "handlebars": "bin/handlebars"
  },
  "scripts": {
+    "checkTypes": "dtslint types",
    "test": "grunt"
  },
  "jspm": {
@@ -71,5 +82,16 @@
    "buildConfig": {
      "minify": true
    }
-  }
+  },
+  "files": [
+    "bin",
+    "dist/*.js",
+    "dist/amd/**/*.js",
+    "dist/cjs/**/*.js",
+    "lib",
+    "print-script",
+    "release-notes.md",
+    "runtime.js",
+    "types/*.d.ts"
+  ]
 }
@@ -0,0 +1,95 @@
+#! /usr/bin/env node
+/* eslint-disable no-console, no-var */
+// Util script for debugging source code generation issues
+
+var script = process.argv[2].replace(/\\n/g, '\n'),
+    verbose = process.argv[3] === '-v';
+
+var Handlebars = require('./lib'),
+    SourceMap = require('source-map'),
+      SourceMapConsumer = SourceMap.SourceMapConsumer;
+
+var template = Handlebars.precompile(script, {
+      srcName: 'input.hbs',
+      destName: 'output.js',
+
+      assumeObjects: true,
+      compat: false,
+      strict: true,
+      trackIds: true,
+      knownHelpersOnly: false
+    });
+
+if (!verbose) {
+  console.log(template);
+} else {
+  var consumer = new SourceMapConsumer(template.map),
+      lines = template.code.split('\n'),
+      srcLines = script.split('\n');
+
+  console.log();
+  console.log('Source:');
+  srcLines.forEach(function(source, index) {
+    console.log(index + 1, source);
+  });
+  console.log();
+  console.log('Generated:');
+  console.log(template.code);
+  lines.forEach(function(source, index) {
+    console.log(index + 1, source);
+  });
+  console.log();
+  console.log('Map:');
+  console.log(template.map);
+  console.log();
+
+  function collectSource(lines, lineName, colName, order) {
+    var ret = {},
+        ordered = [],
+        last;
+
+    function collect(current) {
+      if (last) {
+        var mapLines = lines.slice(last[lineName] - 1, current && current[lineName]);
+        if (mapLines.length) {
+          if (current) {
+            mapLines[mapLines.length - 1] = mapLines[mapLines.length - 1].slice(0, current[colName]);
+          }
+          mapLines[0] = mapLines[0].slice(last[colName]);
+        }
+        ret[last[lineName] + ':' + last[colName]] = mapLines.join('\n');
+        ordered.push({
+          startLine: last[lineName],
+          startCol: last[colName],
+          endLine: current && current[lineName]
+        });
+      }
+      last = current;
+    }
+
+    consumer.eachMapping(collect, undefined, order);
+    collect();
+
+    return ret;
+  }
+
+  srcLines = collectSource(srcLines, 'originalLine', 'originalColumn', SourceMapConsumer.ORIGINAL_ORDER);
+  lines = collectSource(lines, 'generatedLine', 'generatedColumn');
+
+  consumer.eachMapping(function(mapping) {
+    var originalSrc = srcLines[mapping.originalLine + ':' + mapping.originalColumn],
+        generatedSrc = lines[mapping.generatedLine + ':' + mapping.generatedColumn];
+
+    if (!mapping.originalLine) {
+      console.log('generated', mapping.generatedLine + ':' + mapping.generatedColumn, generatedSrc);
+    } else {
+      console.log('map',
+          mapping.source,
+          mapping.originalLine + ':' + mapping.originalColumn,
+          originalSrc,
+          '->',
+          mapping.generatedLine + ':' + mapping.generatedColumn,
+          generatedSrc);
+    }
+  });
+}
@@ -2,10 +2,263 @@

 ## Development

-[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.2...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.2...master)
+
+## v4.2.2 - October 2nd, 2019
+- [#1562](https://github.com/wycats/handlebars.js/issues/1562) - Error message for syntax error missing location in 4.2.1+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.1...v4.2.2)
+
+## v4.2.1 - September 20th, 2019
+Bugfixes: 
+
+- The "browser" property in the package.json has been updated to use the common-js builds instead of the minified UMD - c55a7be, #1553
+
+Compatibility notes:
+- No compatibility issues should arise
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.0...v4.2.1)
+
+## v4.2.0 - September 3rd, 2019
+Chore/Test:
+- Use custom `grunt-saucelab` with current sauce-connect proxy - f119497
+- Add framework for various integration tests - f9cce4d
+- Add integration test for webpack - a57b682
+
+
+Bugfixes:
+- [#1544](https://github.com/wycats/handlebars.js/issues/1544) - Typescript types: `knownHelpers` doesnt allow for custom helpers ([@NickCis](https://api.github.com/users/NickCis))
+- [#1534](https://github.com/wycats/handlebars.js/pull/1534) - Add typings for "Handlebars.VM.resolvePartial ([@AndrewLeedham](https://api.github.com/users/AndrewLeedham))
+
+Features:
+- [#1540](https://github.com/wycats/handlebars.js/pull/1540) - added "browser"-property to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))
+
+Compatibility notes:
+- The new "browser"-property should not break anything, but you can never be sure. The integration test for webpack 
+  shows that it works, but if it doesn't please open an issue.
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2-0...v4.2.0)
+
+## v4.1.2-0 - August 25th, 2019
+[#1540](https://github.com/wycats/handlebars.js/pull/1540) - added browser to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))
+
+Compatibility notes:
+- We are not sure if imports via webpack are still working, which is why this release is a pre-release
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...v4.1.2-0)
+
+## v4.1.2 - April 13th, 2019
+Chore/Test:
+- [#1515](https://github.com/wycats/handlebars.js/pull/1515) - Port over linting and test for typings ([@zimmi88](https://api.github.com/users/zimmi88))
+- chore: add missing typescript dependency, add package-lock.json - 594f1e3
+- test: remove safari from saucelabs - 871accc
+
+Bugfixes: 
+- fix: prevent RCE through the "lookup"-helper - cd38583
+
+Compatibility notes:
+
+Access to the constructor of a class thought `{{lookup obj "constructor" }}` is now prohibited. This closes 
+a leak that only half closed in versions 4.0.13 and 4.1.0, but it is a slight incompatibility.
+
+This kind of access is not the intended use of Handlebars and leads to the vulnerability described
+in #1495. We will **not** increase the major version, because such use is not intended or documented, 
+and because of the potential impact of the issue (we fear that most people won't use a new major version
+and the issue may not be resolved on many systems). 
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...v4.1.2)
+
+## v4.1.1 - March 16th, 2019
+Bugfixes:
+- fix: add "runtime.d.ts" to allow "require('handlebars/runtime')" in TypeScript - 5cedd62
+
+Refactorings:
+- replace "async" with "neo-async" - 048f2ce
+- use "substring"-function instead of "substr" - 445ae12
+
+Compatibility notes:
+- This is a bugfix release. There are no breaking change and no new features.
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.1.1)
+
+## v4.1.0 - February 7th, 2019
+New Features
+
+- import TypeScript typings - 27ac1ee
+
+Security fixes:
+
+- disallow access to the constructor in templates to prevent RCE - 42841c4, #1495
+
+Housekeeping
+
+- chore: fix components/handlebars package.json and auto-update on release - bacd473
+- chore: Use node 10 to build handlebars - 78dd89c
+- chore/doc: Add more release docs - 6b87c21
+
+Compatibility notes:
+
+Access to class constructors (i.e. `({}).constructor`) is now prohibited to prevent
+Remote Code Execution. This means that following construct will no work anymore:
+
+```
+class SomeClass {
+}
+
+SomeClass.staticProperty = 'static'
+
+var template = Handlebars.compile('{{constructor.staticProperty}}');
+document.getElementById('output').innerHTML = template(new SomeClass());
+// expected: 'static', but now this is empty.
+```
+
+This kind of access is not the intended use of Handlebars and leads to the vulnerability described in #1495. We will **not** increase the major version, because such use is not intended or documented, and because of the potential impact of the issue (we fear that most people won't use a new major version and the issue may not be resolved on many systems).
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.1.0)
+
+## v4.0.12 - September 4th, 2018
+New features:
+
+- none
+
+Various dependency updates
+
+- [#1464](https://github.com/wycats/handlebars.js/pull/1464) - Bump versions of grunt-plugins to 1.x
+- [#1398](https://github.com/wycats/handlebars.js/pull/1398) - Chore: updated various dev dependencies
+- upgrade uglify-js - d3d3942
+- Update grunt-eslint to 20.1.0 - 7729aa9
+- Update dependencies "async" to 2.5.0 and "source-map" to 0.6.1 (73d5637)
+
+Bugfixes:
+
+- [components/handlebars.js#24](https://github.com/components/handlebars.js#24) Add package.json to components shim
+- Updated `source-map`-package should work better with `rollup`[#1463](https://github.com/wycats/handlebars.js/issues/1463)
+
+Removed obsolete code:
+
+- unnecessary check - 0ddff8b
+- Use `files` field - 69c6ca5
+- Update jsfiddle to 4.0.11 - 8947dd0
+
+Compatibility notes:
+- No compatibility issues are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.11...v4.0.12)
+
+## v4.0.11 - October 17th, 2017
+- [#1391](https://github.com/wycats/handlebars.js/issues/1391) - `uglify-js` is unconditionally imported, but only listed as optional dependency ([@Turbo87](https://github.com/Turbo87))
+- [#1233](https://github.com/wycats/handlebars.js/issues/1233) - Unable to build under windows - error at test:bin task ([@blikblum](https://github.com/blikblum))
+- Update (C) year in the LICENSE file - 21386b6
+
+Compatibility notes:
+- This is a bugfix release. There are no breaking change and no new features.
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.10...v4.0.11)
+
+## v4.0.10 - May 21st, 2017
+- Fix regression in 4.0.9: Replace "Object.assign" (not support in IE) by "util/extend" - 0e953d1
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.9...v4.0.10)
+
+## v4.0.9 - May 21st, 2017
+
+- [#1327](https://github.com/wycats/handlebars.js/issues/1327) Handlebars.compile() does not modify "options" anymore
+- pending [#1331](https://github.com/wycats/handlebars.js/issues/1331) Attempts to build Handlebars in a Windows environment
+  - Fix build in windows - cc554a5
+  - Ensure LF line-edings in handlebars-template fixtures (*.hbs) - ed879a6
+  - Run integration test with `node handlebars -a ...` on Windows - 2e21e2b
+  - Ensure LF line-edings in lexer-files (*.l) - bdfdbea
+  - Force LF line-endings for spec/artifacts - b50ef03
+  - Use istanbul/lib/cli.js instead of node_modules/.bin/istanbul - 6e6269f
+- TravisCI: Publish valid semver tags independently of the branch - 7378f85
+
+Compatibility notes:
+- No compatibility issues are expected.
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.8...v4.0.9)
+
+## v4.0.8 - May 2nd, 2017
+- [#1341](https://github.com/wycats/handlebars.js/issues/1341) [#1342](https://github.com/wycats/handlebars.js/issues/1342) Allow partial-blocks to be executed without "options" ([@nknapp](https://github.com/nknapp)) - a00c598
+
+Compatibility notes:
+- No breaking changes
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.7...v4.0.8)
+
+## v4.0.7 - April 29th, 2017
+- [#1319](https://github.com/wycats/handlebars.js/issues/1319): Fix context-stack when calling block-helpers on null values ([@nknapp](https://github.com/nknapp)) - c8f4b57
+- [#1315](https://github.com/wycats/handlebars.js/pull/1315) Parser: Change suffix to use ES6 default module export ([@Turbo87](https://github.com/Turbo87))- b617375
+- [#1290](https://github.com/wycats/handlebars.js/pull/1290) [#1252](https://github.com/wycats/handlebars.js/issue/1290) Add more tests for partial-blocks and inline partials ([@nknapp](https://github.com/nknapp)) -  63a8e0c
+- [#1252](https://github.com/wycats/handlebars.js/issue/1290) Using @partial-block twice in a template not possible ([@nknapp](https://github.com/nknapp)) - 5a164d0
+- [#1310](https://github.com/wycats/handlebars.js/pull/1310) Avoid duplicate "sourceMappingURL=" lines. ([@joonas-lahtinen](https://github.com/joonas-lahtinen)) - 01b0f65
+- [#1275](https://github.com/wycats/handlebars.js/pull/1275) require('sys') is deprecated, using 'util' instead ([@travnels](https://github.com/travnels)) - 406f2ee
+- [#1285](https://github.com/wycats/handlebars.js/pull/1285) [#1284](https://github.com/wycats/handlebars.js/issues/1284) Make "column"-property of Errors enumerable ([@nknapp](https://github.com/nknapp)) - a023cb4
+- [#1285](https://github.com/wycats/handlebars.js/pull/1285) Testcase to verify that compile-errors have a column-property ([@nknapp](https://github.com/nknapp)) - c7dc353
+
+[Commits](https://github.com/lawnsea/handlebars.js/compare/v4.0.6...v4.0.7)
+
+## v4.0.6 - November 12th, 2016
+- [#1243](https://github.com/wycats/handlebars.js/pull/1243) - Walk up data frames for nested @partial-block ([@lawnsea](https://github.com/lawnsea))
+- [#1210](https://github.com/wycats/handlebars.js/pull/1210) - Add a new lightweight package based on handlebars in the README ([@kabirbaidhya](https://github.com/kabirbaidhya))
+- [#1187](https://github.com/wycats/handlebars.js/pull/1187) - Ensure that existing blockParams and depths are respected on dupe programs ([@charleso](https://github.com/charleso))
+- [#1191](https://github.com/wycats/handlebars.js/pull/1191) - Added cory ([@leo](https://github.com/leo))
+- [#1177](https://github.com/wycats/handlebars.js/pull/1177) - Preserve License info in Closure Compiler ([@gennadiylitvinyuk](https://github.com/gennadiylitvinyuk))
+- [#1171](https://github.com/wycats/handlebars.js/pull/1171) - Contributing doc fix: failing thats -> failing tests ([@paulfalgout](https://github.com/paulfalgout))
+- [#1166](https://github.com/wycats/handlebars.js/pull/1166) - Update license date ([@timwangdev](https://github.com/timwangdev))
+-  Update jsfiddle to point to latest - 959ee55 (originally dfc7554 by [@kpdecker](https://github.com/kpdecker))
+- [#1163](https://github.com/wycats/handlebars.js/pull/1163) - Fix typos on decorators-api.md. ([@adjohnson916](https://github.com/adjohnson916))
+- Drop extra Error params - 8c19874 (originally 63fdb92 by [@kpdecker](https://github.com/kpdecker))
+- [#1153](https://github.com/wycats/handlebars.js/pull/1153) - Add documentation for running tests to contributing.md ([@ryanmurakami](https://github.com/ryanmurakami))
+- Avoid error in older browsers in test - 400916c (originally a6121ca by [@kpdecker](https://github.com/kpdecker))
+- Update target browser test versions - fee2334 (originally 871c32a by [@kpdecker](https://github.com/kpdecker))
+- Exclude coverage check in exception conditional - 32d6363 (originally 326734b by [@kpdecker](https://github.com/kpdecker))
+- Fix throw when creating exception object in Safari - 20c965c (originally 2ea6119 by [@kpdecker](https://github.com/kpdecker))
+- Update build for modern node versions - 6c9f98c (originally 8289c0b by [@kpdecker](https://github.com/kpdecker))
+- [#1135](https://github.com/wycats/handlebars.js/issues/1135) - Relax depth check for context push - c393c81 (originally 25458fd by [@kpdecker](https://github.com/kpdecker))
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.5...v4.0.6)
+
+## v4.0.5 - November 19th, 2015
+- [#1132](https://github.com/wycats/handlebars.js/pull/1132) - Update uglify-js to avoid vulnerability ([@plynchnlm](https://github.com/plynchnlm))
+- [#1129](https://github.com/wycats/handlebars.js/issues/1129) - Minified lib returns an empty string ([@bricss](https://github.com/bricss))
+- Return current handlebars instance from noConflict - 685cf92
+- Add webpack to dev dependency to support npm 3 - 7a6c228
+- Further relax uglify dependency - 0a3b3c2
+- Include tests for minimized artifacts - c21118d
+- Fix lint errors under latest eslint - 9f59de9
+- Add print-script helper script - 98a6717
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.4...v4.0.5)
+
+## v4.0.4 - October 29th, 2015
+- [#1121](https://github.com/wycats/handlebars.js/pull/1121) - Include partial name in 'undefined partial' exception message ([@shinypb](https://github.com/shinypb))
+- [#1125](https://github.com/wycats/handlebars.js/pull/1125) - Add promised-handlebars to "in-the-wild"-list ([@nknapp](https://github.com/nknapp))
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.3...v4.0.4)
+
+## v4.0.3 - September 23rd, 2015
+- [#1099](https://github.com/wycats/handlebars.js/issues/1099) - @partial-block is overridden ([@btmorex](https://github.com/btmorex))
+- [#1093](https://github.com/wycats/handlebars.js/issues/1093) - #each skips iteration on undefined values ([@florianpilz](https://github.com/florianpilz))
+- [#1092](https://github.com/wycats/handlebars.js/issues/1092) - Square braces in key name ([@distantnative](https://github.com/distantnative))
+- [#1091](https://github.com/wycats/handlebars.js/pull/1091) - fix typo in release notes ([@nikolas](https://github.com/nikolas))
+- [#1090](https://github.com/wycats/handlebars.js/pull/1090) - grammar fixes in 4.0.0 release notes ([@nikolas](https://github.com/nikolas))
+
+Compatibility notes:
+- `each` iteration with `undefined` values has been restored to the 3.0 behaviors. Helper calls with undefined context values will now execute against an arbitrary empty object to avoid executing against global object in non-strict mode.
+- `]` can now be included in `[]` wrapped identifiers by escaping with `\`. Any `[]` identifiers that include `\` will now have to properly escape these values.
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.2...v4.0.3)

 ## v4.0.2 - September 4th, 2015
- [#1089](https://github.com/wycats/handlebars.js/issues/1089) - "Failover content" not working in multiple levels of inline partials ([@michaellopez](https://api.github.com/users/michaellopez))
+- [#1089](https://github.com/wycats/handlebars.js/issues/1089) - "Failover content" not working in multiple levels of inline partials ([@michaellopez](https://github.com/michaellopez))

 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.1...v4.0.2)

@@ -15,17 +268,17 @@
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.0...v4.0.1)

 ## v4.0.0 - September 1st, 2015
- [#1082](https://github.com/wycats/handlebars.js/pull/1082) - Decorators and Inline Partials ([@kpdecker](https://api.github.com/users/kpdecker))
- [#1076](https://github.com/wycats/handlebars.js/pull/1076) - Implement partial blocks ([@kpdecker](https://api.github.com/users/kpdecker))
- [#1087](https://github.com/wycats/handlebars.js/pull/1087) - Fix #each when last object entry has empty key ([@denniskuczynski](https://api.github.com/users/denniskuczynski))
- [#1084](https://github.com/wycats/handlebars.js/pull/1084) - Bump uglify version to fix vulnerability ([@John-Steidley](https://api.github.com/users/John-Steidley))
- [#1068](https://github.com/wycats/handlebars.js/pull/1068) - Fix typo ([@0xack13](https://api.github.com/users/0xack13))
- [#1060](https://github.com/wycats/handlebars.js/pull/1060) - #1056 Fixed grammar for nested raw blocks ([@ericbn](https://api.github.com/users/ericbn))
- [#1052](https://github.com/wycats/handlebars.js/pull/1052) - Updated year in License ([@maqnouch](https://api.github.com/users/maqnouch))
- [#1037](https://github.com/wycats/handlebars.js/pull/1037) - Fix minor typos in README ([@tomxtobin](https://api.github.com/users/tomxtobin))
- [#1032](https://github.com/wycats/handlebars.js/issues/1032) - Is it possible to render a partial without the parent scope? ([@aputinski](https://api.github.com/users/aputinski))
- [#1019](https://github.com/wycats/handlebars.js/pull/1019) - Fixes typo in tests ([@aymerick](https://api.github.com/users/aymerick))
- [#1016](https://github.com/wycats/handlebars.js/issues/1016) - Version mis-match ([@mayankdedhia](https://api.github.com/users/mayankdedhia))
+- [#1082](https://github.com/wycats/handlebars.js/pull/1082) - Decorators and Inline Partials ([@kpdecker](https://github.com/kpdecker))
+- [#1076](https://github.com/wycats/handlebars.js/pull/1076) - Implement partial blocks ([@kpdecker](https://github.com/kpdecker))
+- [#1087](https://github.com/wycats/handlebars.js/pull/1087) - Fix #each when last object entry has empty key ([@denniskuczynski](https://github.com/denniskuczynski))
+- [#1084](https://github.com/wycats/handlebars.js/pull/1084) - Bump uglify version to fix vulnerability ([@John-Steidley](https://github.com/John-Steidley))
+- [#1068](https://github.com/wycats/handlebars.js/pull/1068) - Fix typo ([@0xack13](https://github.com/0xack13))
+- [#1060](https://github.com/wycats/handlebars.js/pull/1060) - #1056 Fixed grammar for nested raw blocks ([@ericbn](https://github.com/ericbn))
+- [#1052](https://github.com/wycats/handlebars.js/pull/1052) - Updated year in License ([@maqnouch](https://github.com/maqnouch))
+- [#1037](https://github.com/wycats/handlebars.js/pull/1037) - Fix minor typos in README ([@tomxtobin](https://github.com/tomxtobin))
+- [#1032](https://github.com/wycats/handlebars.js/issues/1032) - Is it possible to render a partial without the parent scope? ([@aputinski](https://github.com/aputinski))
+- [#1019](https://github.com/wycats/handlebars.js/pull/1019) - Fixes typo in tests ([@aymerick](https://github.com/aymerick))
+- [#1016](https://github.com/wycats/handlebars.js/issues/1016) - Version mis-match ([@mayankdedhia](https://github.com/mayankdedhia))
 - [#1023](https://github.com/wycats/handlebars.js/issues/1023) - is it possible for nested custom helpers to communicate between each other?
 - [#893](https://github.com/wycats/handlebars.js/issues/893) - [Proposal] Section blocks.
 - [#792](https://github.com/wycats/handlebars.js/issues/792) - feature request: inline partial definitions
@@ -50,7 +303,7 @@
 - Fix location information for programs - [93faffa](https://github.com/wycats/handlebars.js/commit/93faffa)

 Compatibility notes:
- Depthed paths are now conditional pushed on to the stack. If the helper uses the same context, then a new stack is not created. This leads to behavior the better matches expectations for helpers like `if` that do not seem to alter the context. Any instances of `../` in templates will need to be checked for the correct behavior under 4.0.0. In general templates will either reduce the number of `../` instances or leave them as is. See [#1028](https://github.com/wycats/handlebars.js/issues/1028).
+- Depthed paths are now conditionally pushed on to the stack. If the helper uses the same context, then a new stack is not created. This leads to behavior that better matches expectations for helpers like `if` that do not seem to alter the context. Any instances of `../` in templates will need to be checked for the correct behavior under 4.0.0. In general templates will either reduce the number of `../` instances or leave them as is. See [#1028](https://github.com/wycats/handlebars.js/issues/1028).
 - The `=` character is now HTML escaped. This closes a potential exploit case when using unquoted attributes, i.e. `<div foo={{bar}}>`. In general it's recommended that attributes always be quoted when their values are generated from a mustache to avoid any potential exploit surfaces.
 - AST constructors have been dropped in favor of plain old javascript objects
 - The runtime version has been increased. Precompiled templates will need to use runtime of at least 4.0.0.
@@ -58,55 +311,55 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.3...v4.0.0)

 ## v3.0.3 - April 28th, 2015
- [#1004](https://github.com/wycats/handlebars.js/issues/1004) - Latest version breaks with RequireJS (global is undefined) ([@boskee](https://api.github.com/users/boskee))
+- [#1004](https://github.com/wycats/handlebars.js/issues/1004) - Latest version breaks with RequireJS (global is undefined) ([@boskee](https://github.com/boskee))

 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.2...v3.0.3)

 ## v3.0.2 - April 20th, 2015
- [#998](https://github.com/wycats/handlebars.js/pull/998) - Add full support for es6 ([@kpdecker](https://api.github.com/users/kpdecker))
- [#994](https://github.com/wycats/handlebars.js/issues/994) - Access Handlebars.Visitor in browser ([@tamlyn](https://api.github.com/users/tamlyn))
- [#990](https://github.com/wycats/handlebars.js/issues/990) - Allow passing null/undefined literals subexpressions ([@blimmer](https://api.github.com/users/blimmer))
- [#989](https://github.com/wycats/handlebars.js/issues/989) - Source-map error with requirejs ([@SteppeEagle](https://api.github.com/users/SteppeEagle))
- [#967](https://github.com/wycats/handlebars.js/issues/967) - can't access "this" property  ([@75lb](https://api.github.com/users/75lb))
+- [#998](https://github.com/wycats/handlebars.js/pull/998) - Add full support for es6 ([@kpdecker](https://github.com/kpdecker))
+- [#994](https://github.com/wycats/handlebars.js/issues/994) - Access Handlebars.Visitor in browser ([@tamlyn](https://github.com/tamlyn))
+- [#990](https://github.com/wycats/handlebars.js/issues/990) - Allow passing null/undefined literals subexpressions ([@blimmer](https://github.com/blimmer))
+- [#989](https://github.com/wycats/handlebars.js/issues/989) - Source-map error with requirejs ([@SteppeEagle](https://github.com/SteppeEagle))
+- [#967](https://github.com/wycats/handlebars.js/issues/967) - can't access "this" property  ([@75lb](https://github.com/75lb))
 - Use captureStackTrace for error handler - a009a97
 - Ignore branches tested without coverage monitoring - 37a664b

 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.1...v3.0.2)

 ## v3.0.1 - March 24th, 2015
- [#984](https://github.com/wycats/handlebars.js/pull/984) - Adding documentation for passing arguments into partials ([@johneke](https://api.github.com/users/johneke))
- [#973](https://github.com/wycats/handlebars.js/issues/973) - version 3 is slower than version 2 ([@elover](https://api.github.com/users/elover))
- [#966](https://github.com/wycats/handlebars.js/issues/966) - "handlebars --version" does not work with v3.0.0 ([@abloomston](https://api.github.com/users/abloomston))
- [#964](https://github.com/wycats/handlebars.js/pull/964) - default is a reserved word ([@grassick](https://api.github.com/users/grassick))
- [#962](https://github.com/wycats/handlebars.js/pull/962) - Add dashbars' link on README. ([@pismute](https://api.github.com/users/pismute))
+- [#984](https://github.com/wycats/handlebars.js/pull/984) - Adding documentation for passing arguments into partials ([@johneke](https://github.com/johneke))
+- [#973](https://github.com/wycats/handlebars.js/issues/973) - version 3 is slower than version 2 ([@elover](https://github.com/elover))
+- [#966](https://github.com/wycats/handlebars.js/issues/966) - "handlebars --version" does not work with v3.0.0 ([@abloomston](https://github.com/abloomston))
+- [#964](https://github.com/wycats/handlebars.js/pull/964) - default is a reserved word ([@grassick](https://github.com/grassick))
+- [#962](https://github.com/wycats/handlebars.js/pull/962) - Add dashbars' link on README. ([@pismute](https://github.com/pismute))

 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.0...v3.0.1)

 ## v3.0.0 - February 10th, 2015
- [#941](https://github.com/wycats/handlebars.js/pull/941) - Add support for dynamic partial names ([@kpdecker](https://api.github.com/users/kpdecker))
- [#940](https://github.com/wycats/handlebars.js/pull/940) - Add missing reserved words so compiler knows to use array syntax: ([@mattflaschen](https://api.github.com/users/mattflaschen))
- [#938](https://github.com/wycats/handlebars.js/pull/938) - Fix example using #with helper ([@diwo](https://api.github.com/users/diwo))
- [#930](https://github.com/wycats/handlebars.js/pull/930) - Add parent tracking and mutation to AST visitors ([@kpdecker](https://api.github.com/users/kpdecker))
- [#926](https://github.com/wycats/handlebars.js/issues/926) - Depthed lookups fail when program duplicator runs ([@kpdecker](https://api.github.com/users/kpdecker))
- [#918](https://github.com/wycats/handlebars.js/pull/918) - Add instructions for 'spec/mustache' to CONTRIBUTING.md, fix a few typos ([@oneeman](https://api.github.com/users/oneeman))
- [#915](https://github.com/wycats/handlebars.js/pull/915) - Ast update ([@kpdecker](https://api.github.com/users/kpdecker))
- [#910](https://github.com/wycats/handlebars.js/issues/910) - Different behavior of {{@last}} when {{#each}} in {{#each}} ([@zordius](https://api.github.com/users/zordius))
- [#907](https://github.com/wycats/handlebars.js/issues/907) - Implement named helper variable references ([@kpdecker](https://api.github.com/users/kpdecker))
- [#906](https://github.com/wycats/handlebars.js/pull/906) - Add parser support for block params ([@mmun](https://api.github.com/users/mmun))
- [#903](https://github.com/wycats/handlebars.js/issues/903) - Only provide aliases for multiple use calls ([@kpdecker](https://api.github.com/users/kpdecker))
- [#902](https://github.com/wycats/handlebars.js/pull/902) - Generate Source Maps ([@kpdecker](https://api.github.com/users/kpdecker))
- [#901](https://github.com/wycats/handlebars.js/issues/901) - Still escapes with noEscape enabled on isolated Handlebars environment ([@zedknight](https://api.github.com/users/zedknight))
- [#896](https://github.com/wycats/handlebars.js/pull/896) - Simplify BlockNode by removing intermediate MustacheNode ([@mmun](https://api.github.com/users/mmun))
- [#892](https://github.com/wycats/handlebars.js/pull/892) - Implement parser for else chaining of helpers ([@kpdecker](https://api.github.com/users/kpdecker))
- [#889](https://github.com/wycats/handlebars.js/issues/889) - Consider extensible parser API ([@kpdecker](https://api.github.com/users/kpdecker))
- [#887](https://github.com/wycats/handlebars.js/issues/887) - Handlebars.noConflict() option? ([@bradvogel](https://api.github.com/users/bradvogel))
- [#886](https://github.com/wycats/handlebars.js/issues/886) - Add SafeString to context (or use duck-typing) ([@dominicbarnes](https://api.github.com/users/dominicbarnes))
- [#870](https://github.com/wycats/handlebars.js/pull/870) - Registering undefined partial throws exception. ([@max-b](https://api.github.com/users/max-b))
- [#866](https://github.com/wycats/handlebars.js/issues/866) - comments don't respect whitespace control ([@75lb](https://api.github.com/users/75lb))
- [#863](https://github.com/wycats/handlebars.js/pull/863) - + jsDelivr CDN info ([@tomByrer](https://api.github.com/users/tomByrer))
- [#858](https://github.com/wycats/handlebars.js/issues/858) - Disable new default auto-indent at included partials ([@majodev](https://api.github.com/users/majodev))
- [#856](https://github.com/wycats/handlebars.js/pull/856) - jspm compatibility ([@MajorBreakfast](https://api.github.com/users/MajorBreakfast))
- [#805](https://github.com/wycats/handlebars.js/issues/805) - Request: "strict" lookups ([@nzakas](https://api.github.com/users/nzakas))
+- [#941](https://github.com/wycats/handlebars.js/pull/941) - Add support for dynamic partial names ([@kpdecker](https://github.com/kpdecker))
+- [#940](https://github.com/wycats/handlebars.js/pull/940) - Add missing reserved words so compiler knows to use array syntax: ([@mattflaschen](https://github.com/mattflaschen))
+- [#938](https://github.com/wycats/handlebars.js/pull/938) - Fix example using #with helper ([@diwo](https://github.com/diwo))
+- [#930](https://github.com/wycats/handlebars.js/pull/930) - Add parent tracking and mutation to AST visitors ([@kpdecker](https://github.com/kpdecker))
+- [#926](https://github.com/wycats/handlebars.js/issues/926) - Depthed lookups fail when program duplicator runs ([@kpdecker](https://github.com/kpdecker))
+- [#918](https://github.com/wycats/handlebars.js/pull/918) - Add instructions for 'spec/mustache' to CONTRIBUTING.md, fix a few typos ([@oneeman](https://github.com/oneeman))
+- [#915](https://github.com/wycats/handlebars.js/pull/915) - Ast update ([@kpdecker](https://github.com/kpdecker))
+- [#910](https://github.com/wycats/handlebars.js/issues/910) - Different behavior of {{@last}} when {{#each}} in {{#each}} ([@zordius](https://github.com/zordius))
+- [#907](https://github.com/wycats/handlebars.js/issues/907) - Implement named helper variable references ([@kpdecker](https://github.com/kpdecker))
+- [#906](https://github.com/wycats/handlebars.js/pull/906) - Add parser support for block params ([@mmun](https://github.com/mmun))
+- [#903](https://github.com/wycats/handlebars.js/issues/903) - Only provide aliases for multiple use calls ([@kpdecker](https://github.com/kpdecker))
+- [#902](https://github.com/wycats/handlebars.js/pull/902) - Generate Source Maps ([@kpdecker](https://github.com/kpdecker))
+- [#901](https://github.com/wycats/handlebars.js/issues/901) - Still escapes with noEscape enabled on isolated Handlebars environment ([@zedknight](https://github.com/zedknight))
+- [#896](https://github.com/wycats/handlebars.js/pull/896) - Simplify BlockNode by removing intermediate MustacheNode ([@mmun](https://github.com/mmun))
+- [#892](https://github.com/wycats/handlebars.js/pull/892) - Implement parser for else chaining of helpers ([@kpdecker](https://github.com/kpdecker))
+- [#889](https://github.com/wycats/handlebars.js/issues/889) - Consider extensible parser API ([@kpdecker](https://github.com/kpdecker))
+- [#887](https://github.com/wycats/handlebars.js/issues/887) - Handlebars.noConflict() option? ([@bradvogel](https://github.com/bradvogel))
+- [#886](https://github.com/wycats/handlebars.js/issues/886) - Add SafeString to context (or use duck-typing) ([@dominicbarnes](https://github.com/dominicbarnes))
+- [#870](https://github.com/wycats/handlebars.js/pull/870) - Registering undefined partial throws exception. ([@max-b](https://github.com/max-b))
+- [#866](https://github.com/wycats/handlebars.js/issues/866) - comments don't respect whitespace control ([@75lb](https://github.com/75lb))
+- [#863](https://github.com/wycats/handlebars.js/pull/863) - + jsDelivr CDN info ([@tomByrer](https://github.com/tomByrer))
+- [#858](https://github.com/wycats/handlebars.js/issues/858) - Disable new default auto-indent at included partials ([@majodev](https://github.com/majodev))
+- [#856](https://github.com/wycats/handlebars.js/pull/856) - jspm compatibility ([@MajorBreakfast](https://github.com/MajorBreakfast))
+- [#805](https://github.com/wycats/handlebars.js/issues/805) - Request: "strict" lookups ([@nzakas](https://github.com/nzakas))

 - Export the default object for handlebars/runtime - 5594416
 - Lookup partials when undefined - 617dd57
@@ -140,21 +393,21 @@ New Features:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-beta.1...v2.0.0)

 ## v2.0.0-beta.1 - August 26th, 2014
- [#787](https://github.com/wycats/handlebars.js/pull/787) - Remove whitespace surrounding standalone statements ([@kpdecker](https://api.github.com/users/kpdecker))
- [#827](https://github.com/wycats/handlebars.js/issues/827) - Render false literal as “false” ([@scoot557](https://api.github.com/users/scoot557))
- [#767](https://github.com/wycats/handlebars.js/issues/767) - Subexpressions bug with hash and context ([@evensoul](https://api.github.com/users/evensoul))
+- [#787](https://github.com/wycats/handlebars.js/pull/787) - Remove whitespace surrounding standalone statements ([@kpdecker](https://github.com/kpdecker))
+- [#827](https://github.com/wycats/handlebars.js/issues/827) - Render false literal as “false” ([@scoot557](https://github.com/scoot557))
+- [#767](https://github.com/wycats/handlebars.js/issues/767) - Subexpressions bug with hash and context ([@evensoul](https://github.com/evensoul))
 - Changes to 0/undefined handling
-  - [#731](https://github.com/wycats/handlebars.js/pull/731) - Strange behavior for {{#foo}} {{bar}} {{/foo}} when foo is 0 ([@kpdecker](https://api.github.com/users/kpdecker))
-  - [#820](https://github.com/wycats/handlebars.js/issues/820) - strange behavior for {{foo.bar}} when foo is 0 or null or false ([@zordius](https://api.github.com/users/zordius))
-  - [#837](https://github.com/wycats/handlebars.js/issues/837) - Strange input for custom helper ( foo.bar == false when foo is undefined ) ([@zordius](https://api.github.com/users/zordius))
- [#819](https://github.com/wycats/handlebars.js/pull/819) - Implement recursive field lookup ([@kpdecker](https://api.github.com/users/kpdecker))
- [#764](https://github.com/wycats/handlebars.js/issues/764) - This reference not working for helpers ([@kpdecker](https://api.github.com/users/kpdecker))
- [#773](https://github.com/wycats/handlebars.js/issues/773) - Implicit parameters in {{#each}} introduces a peculiarity in helpers calling convention  ([@Bertrand](https://api.github.com/users/Bertrand))
- [#783](https://github.com/wycats/handlebars.js/issues/783) - helperMissing and consistency for different expression types ([@ErisDS](https://api.github.com/users/ErisDS))
- [#795](https://github.com/wycats/handlebars.js/pull/795) - Turn the precompile script into a wrapper around a module. ([@jwietelmann](https://api.github.com/users/jwietelmann))
- [#823](https://github.com/wycats/handlebars.js/pull/823) - Support inverse sections on the with helper ([@dan-manges](https://api.github.com/users/dan-manges))
- [#834](https://github.com/wycats/handlebars.js/pull/834) - Refactor blocks, programs and inverses ([@mmun](https://api.github.com/users/mmun))
- [#852](https://github.com/wycats/handlebars.js/issues/852) - {{foo~}} space control behavior is different from older version ([@zordius](https://api.github.com/users/zordius))
+  - [#731](https://github.com/wycats/handlebars.js/pull/731) - Strange behavior for {{#foo}} {{bar}} {{/foo}} when foo is 0 ([@kpdecker](https://github.com/kpdecker))
+  - [#820](https://github.com/wycats/handlebars.js/issues/820) - strange behavior for {{foo.bar}} when foo is 0 or null or false ([@zordius](https://github.com/zordius))
+  - [#837](https://github.com/wycats/handlebars.js/issues/837) - Strange input for custom helper ( foo.bar == false when foo is undefined ) ([@zordius](https://github.com/zordius))
+- [#819](https://github.com/wycats/handlebars.js/pull/819) - Implement recursive field lookup ([@kpdecker](https://github.com/kpdecker))
+- [#764](https://github.com/wycats/handlebars.js/issues/764) - This reference not working for helpers ([@kpdecker](https://github.com/kpdecker))
+- [#773](https://github.com/wycats/handlebars.js/issues/773) - Implicit parameters in {{#each}} introduces a peculiarity in helpers calling convention  ([@Bertrand](https://github.com/Bertrand))
+- [#783](https://github.com/wycats/handlebars.js/issues/783) - helperMissing and consistency for different expression types ([@ErisDS](https://github.com/ErisDS))
+- [#795](https://github.com/wycats/handlebars.js/pull/795) - Turn the precompile script into a wrapper around a module. ([@jwietelmann](https://github.com/jwietelmann))
+- [#823](https://github.com/wycats/handlebars.js/pull/823) - Support inverse sections on the with helper ([@dan-manges](https://github.com/dan-manges))
+- [#834](https://github.com/wycats/handlebars.js/pull/834) - Refactor blocks, programs and inverses ([@mmun](https://github.com/mmun))
+- [#852](https://github.com/wycats/handlebars.js/issues/852) - {{foo~}} space control behavior is different from older version ([@zordius](https://github.com/zordius))
 - [#835](https://github.com/wycats/handlebars.js/issues/835) - Templates overwritten if file is loaded twice

 - Expose escapeExpression on the root object - 980c38c
@@ -169,7 +422,7 @@ Compatibility notes:
 - Lines containing only block statements and whitespace are now removed. This matches the Mustache spec but may cause issues with code that expects whitespace to exist but would not otherwise.
 - Partials that are standalone will now indent their rendered content
 - `AST.ProgramNode`'s signature has changed. 
- Numerious methods/features removed from psuedo-API classes
+- Numerious methods/features removed from pseudo-API classes
  - `JavaScriptCompiler.register`
  - `JavaScriptCompiler.replaceStack` no longer supports non-inline replace
  - `Compiler.disassemble`
@@ -188,18 +441,18 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.3...v2.0.0-alpha.4)

 ## v2.0.0-alpha.3 - May 19th, 2014
- [#797](https://github.com/wycats/handlebars.js/pull/797) - Pass full helper ID to helperMissing when options are provided ([@tomdale](https://api.github.com/users/tomdale))
- [#793](https://github.com/wycats/handlebars.js/pull/793) - Ensure isHelper is coerced to a boolean ([@mmun](https://api.github.com/users/mmun))
+- [#797](https://github.com/wycats/handlebars.js/pull/797) - Pass full helper ID to helperMissing when options are provided ([@tomdale](https://github.com/tomdale))
+- [#793](https://github.com/wycats/handlebars.js/pull/793) - Ensure isHelper is coerced to a boolean ([@mmun](https://github.com/mmun))
 - Refactor template init logic - 085e5e1

 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.2...v2.0.0-alpha.3)

 ## v2.0.0-alpha.2 - March 6th, 2014
- [#756](https://github.com/wycats/handlebars.js/pull/756) - fix bug in IE<=8 (no Array::map), closes #751 ([@jenseng](https://api.github.com/users/jenseng))
- [#749](https://github.com/wycats/handlebars.js/pull/749) - properly handle multiple subexpressions in the same hash, fixes #748 ([@jenseng](https://api.github.com/users/jenseng))
- [#743](https://github.com/wycats/handlebars.js/issues/743) - subexpression confusion/problem? ([@waynedpj](https://api.github.com/users/waynedpj))
- [#746](https://github.com/wycats/handlebars.js/issues/746) - [CLI] support `handlebars --version` ([@apfelbox](https://api.github.com/users/apfelbox))
- [#747](https://github.com/wycats/handlebars.js/pull/747) - updated grunt-saucelabs, failing tests revealed ([@Jonahss](https://api.github.com/users/Jonahss))
+- [#756](https://github.com/wycats/handlebars.js/pull/756) - fix bug in IE<=8 (no Array::map), closes #751 ([@jenseng](https://github.com/jenseng))
+- [#749](https://github.com/wycats/handlebars.js/pull/749) - properly handle multiple subexpressions in the same hash, fixes #748 ([@jenseng](https://github.com/jenseng))
+- [#743](https://github.com/wycats/handlebars.js/issues/743) - subexpression confusion/problem? ([@waynedpj](https://github.com/waynedpj))
+- [#746](https://github.com/wycats/handlebars.js/issues/746) - [CLI] support `handlebars --version` ([@apfelbox](https://github.com/apfelbox))
+- [#747](https://github.com/wycats/handlebars.js/pull/747) - updated grunt-saucelabs, failing tests revealed ([@Jonahss](https://github.com/Jonahss))
 - Make JSON a requirement for the compiler. - 058c0fb
 - Temporarily kill the AWS publish CI step - 8347ee2

@@ -209,26 +462,26 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.1...v2.0.0-alpha.2)

 ## v2.0.0-alpha.1 - February 10th, 2014
- [#182](https://github.com/wycats/handlebars.js/pull/182) - Allow passing hash parameters to partials ([@kpdecker](https://api.github.com/users/kpdecker))
- [#392](https://github.com/wycats/handlebars.js/pull/392) - Access to root context in partials and helpers ([@kpdecker](https://api.github.com/users/kpdecker))
- [#472](https://github.com/wycats/handlebars.js/issues/472) - Helpers cannot have decimal parameters ([@kayleg](https://api.github.com/users/kayleg))
- [#569](https://github.com/wycats/handlebars.js/pull/569) - Unable to lookup array values using @index ([@kpdecker](https://api.github.com/users/kpdecker))
- [#491](https://github.com/wycats/handlebars.js/pull/491) - For nested helpers: get the @ variables of the outer helper from the inner one ([@kpdecker](https://api.github.com/users/kpdecker))
- [#669](https://github.com/wycats/handlebars.js/issues/669) - Ability to unregister a helper ([@dbachrach](https://api.github.com/users/dbachrach))
- [#730](https://github.com/wycats/handlebars.js/pull/730) - Raw block helpers ([@kpdecker](https://api.github.com/users/kpdecker))
- [#634](https://github.com/wycats/handlebars.js/pull/634) - It would be great to have the helper name passed to `blockHelperMissing` ([@kpdecker](https://api.github.com/users/kpdecker))
- [#729](https://github.com/wycats/handlebars.js/pull/729) - Convert template spec to object literal ([@kpdecker](https://api.github.com/users/kpdecker))
+- [#182](https://github.com/wycats/handlebars.js/pull/182) - Allow passing hash parameters to partials ([@kpdecker](https://github.com/kpdecker))
+- [#392](https://github.com/wycats/handlebars.js/pull/392) - Access to root context in partials and helpers ([@kpdecker](https://github.com/kpdecker))
+- [#472](https://github.com/wycats/handlebars.js/issues/472) - Helpers cannot have decimal parameters ([@kayleg](https://github.com/kayleg))
+- [#569](https://github.com/wycats/handlebars.js/pull/569) - Unable to lookup array values using @index ([@kpdecker](https://github.com/kpdecker))
+- [#491](https://github.com/wycats/handlebars.js/pull/491) - For nested helpers: get the @ variables of the outer helper from the inner one ([@kpdecker](https://github.com/kpdecker))
+- [#669](https://github.com/wycats/handlebars.js/issues/669) - Ability to unregister a helper ([@dbachrach](https://github.com/dbachrach))
+- [#730](https://github.com/wycats/handlebars.js/pull/730) - Raw block helpers ([@kpdecker](https://github.com/kpdecker))
+- [#634](https://github.com/wycats/handlebars.js/pull/634) - It would be great to have the helper name passed to `blockHelperMissing` ([@kpdecker](https://github.com/kpdecker))
+- [#729](https://github.com/wycats/handlebars.js/pull/729) - Convert template spec to object literal ([@kpdecker](https://github.com/kpdecker))

- [#658](https://github.com/wycats/handlebars.js/issues/658) - Depthed helpers do not work after an upgrade from 1.0.0 ([@xibxor](https://api.github.com/users/xibxor))
- [#671](https://github.com/wycats/handlebars.js/issues/671) - Crashes on no-parameter {{#each}} ([@stepancheg](https://api.github.com/users/stepancheg))
- [#689](https://github.com/wycats/handlebars.js/issues/689) - broken template precompilation ([@AAS](https://api.github.com/users/AAS))
- [#698](https://github.com/wycats/handlebars.js/pull/698) - Fix parser generation under windows ([@osiris43](https://api.github.com/users/osiris43))
- [#699](https://github.com/wycats/handlebars.js/issues/699) - @DATA not compiles to invalid JS in stringParams mode ([@kpdecker](https://api.github.com/users/kpdecker))
- [#705](https://github.com/wycats/handlebars.js/issues/705) - 1.3.0 can not be wrapped in an IIFE ([@craigteegarden](https://api.github.com/users/craigteegarden))
- [#706](https://github.com/wycats/handlebars.js/pull/706) - README: Use with helper instead of relying on blockHelperMissing ([@scottgonzalez](https://api.github.com/users/scottgonzalez))
+- [#658](https://github.com/wycats/handlebars.js/issues/658) - Depthed helpers do not work after an upgrade from 1.0.0 ([@xibxor](https://github.com/xibxor))
+- [#671](https://github.com/wycats/handlebars.js/issues/671) - Crashes on no-parameter {{#each}} ([@stepancheg](https://github.com/stepancheg))
+- [#689](https://github.com/wycats/handlebars.js/issues/689) - broken template precompilation ([@AAS](https://github.com/AAS))
+- [#698](https://github.com/wycats/handlebars.js/pull/698) - Fix parser generation under windows ([@osiris43](https://github.com/osiris43))
+- [#699](https://github.com/wycats/handlebars.js/issues/699) - @DATA not compiles to invalid JS in stringParams mode ([@kpdecker](https://github.com/kpdecker))
+- [#705](https://github.com/wycats/handlebars.js/issues/705) - 1.3.0 can not be wrapped in an IIFE ([@craigteegarden](https://github.com/craigteegarden))
+- [#706](https://github.com/wycats/handlebars.js/pull/706) - README: Use with helper instead of relying on blockHelperMissing ([@scottgonzalez](https://github.com/scottgonzalez))

- [#700](https://github.com/wycats/handlebars.js/pull/700) - Remove redundant conditions ([@blakeembrey](https://api.github.com/users/blakeembrey))
- [#704](https://github.com/wycats/handlebars.js/pull/704) - JavaScript Compiler Cleanup ([@blakeembrey](https://api.github.com/users/blakeembrey))
+- [#700](https://github.com/wycats/handlebars.js/pull/700) - Remove redundant conditions ([@blakeembrey](https://github.com/blakeembrey))
+- [#704](https://github.com/wycats/handlebars.js/pull/704) - JavaScript Compiler Cleanup ([@blakeembrey](https://github.com/blakeembrey))

 Compatibility notes:
 - `helperMissing` helper no longer has the indexed name argument. Helper name is now available via `options.name`.
@@ -238,17 +491,17 @@ Compatibility notes:
  - INTEGER -> NUMBER
  - Additional PartialNode hash parameter
  - New RawBlockNode type
- Data frames now have a `_parent` field. This is internal but is enumerable for performance/compatability reasons.
+- Data frames now have a `_parent` field. This is internal but is enumerable for performance/compatibility reasons.

 [Commits](https://github.com/wycats/handlebars.js/compare/v1.3.0...v2.0.0-alpha.1)

 ## v1.3.0 - January 1st, 2014
- [#690](https://github.com/wycats/handlebars.js/pull/690) - Added support for subexpressions ([@machty](https://api.github.com/users/machty))
- [#696](https://github.com/wycats/handlebars.js/pull/696) - Fix for reserved keyword "default" ([@nateirwin](https://api.github.com/users/nateirwin))
- [#692](https://github.com/wycats/handlebars.js/pull/692) - add line numbers to nodes when parsing ([@fivetanley](https://api.github.com/users/fivetanley))
- [#695](https://github.com/wycats/handlebars.js/pull/695) - Pull options out from param setup to allow easier extension ([@blakeembrey](https://api.github.com/users/blakeembrey))
- [#694](https://github.com/wycats/handlebars.js/pull/694) - Make the environment reusable ([@blakeembrey](https://api.github.com/users/blakeembrey))
- [#636](https://github.com/wycats/handlebars.js/issues/636) - Print line and column of errors ([@sgronblo](https://api.github.com/users/sgronblo))
+- [#690](https://github.com/wycats/handlebars.js/pull/690) - Added support for subexpressions ([@machty](https://github.com/machty))
+- [#696](https://github.com/wycats/handlebars.js/pull/696) - Fix for reserved keyword "default" ([@nateirwin](https://github.com/nateirwin))
+- [#692](https://github.com/wycats/handlebars.js/pull/692) - add line numbers to nodes when parsing ([@fivetanley](https://github.com/fivetanley))
+- [#695](https://github.com/wycats/handlebars.js/pull/695) - Pull options out from param setup to allow easier extension ([@blakeembrey](https://github.com/blakeembrey))
+- [#694](https://github.com/wycats/handlebars.js/pull/694) - Make the environment reusable ([@blakeembrey](https://github.com/blakeembrey))
+- [#636](https://github.com/wycats/handlebars.js/issues/636) - Print line and column of errors ([@sgronblo](https://github.com/sgronblo))
 - Use literal for data lookup - c1a93d3
 - Add stack handling sanity checks - cd885bf
 - Fix stack id "leak" on replaceStack - ddfe457
@@ -257,25 +510,25 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v1.2.1...v1.3.0)

 ## v1.2.1 - December 26th, 2013
- [#684](https://github.com/wycats/handlebars.js/pull/684) - Allow any number of trailing characters for valid JavaScript variable ([@blakeembrey](https://api.github.com/users/blakeembrey))
- [#686](https://github.com/wycats/handlebars.js/pull/686) - Falsy AMD module names in version 1.2.0 ([@kpdecker](https://api.github.com/users/kpdecker))
+- [#684](https://github.com/wycats/handlebars.js/pull/684) - Allow any number of trailing characters for valid JavaScript variable ([@blakeembrey](https://github.com/blakeembrey))
+- [#686](https://github.com/wycats/handlebars.js/pull/686) - Falsy AMD module names in version 1.2.0 ([@kpdecker](https://github.com/kpdecker))

 [Commits](https://github.com/wycats/handlebars.js/compare/v1.2.0...v1.2.1)

 ## v1.2.0 - December 23rd, 2013
- [#675](https://github.com/wycats/handlebars.js/issues/675) - Cannot compile empty template for partial ([@erwinw](https://api.github.com/users/erwinw))
- [#677](https://github.com/wycats/handlebars.js/issues/677) - Triple brace statements fail under IE ([@hamzaCM](https://api.github.com/users/hamzaCM))
- [#655](https://github.com/wycats/handlebars.js/issues/655) - Loading Handlebars using bower ([@niki4810](https://api.github.com/users/niki4810))
- [#657](https://github.com/wycats/handlebars.js/pull/657) - Fixes issue where cli compiles non handlebars templates ([@chrishoage](https://api.github.com/users/chrishoage))
- [#681](https://github.com/wycats/handlebars.js/pull/681) - Adds in-browser testing and Saucelabs CI ([@kpdecker](https://api.github.com/users/kpdecker))
- [#661](https://github.com/wycats/handlebars.js/pull/661) - Add @first and @index to #each object iteration ([@cgp](https://api.github.com/users/cgp))
- [#650](https://github.com/wycats/handlebars.js/pull/650) - Handlebars is MIT-licensed ([@thomasboyt](https://api.github.com/users/thomasboyt))
- [#641](https://github.com/wycats/handlebars.js/pull/641) - Document ember testing process ([@kpdecker](https://api.github.com/users/kpdecker))
+- [#675](https://github.com/wycats/handlebars.js/issues/675) - Cannot compile empty template for partial ([@erwinw](https://github.com/erwinw))
+- [#677](https://github.com/wycats/handlebars.js/issues/677) - Triple brace statements fail under IE ([@hamzaCM](https://github.com/hamzaCM))
+- [#655](https://github.com/wycats/handlebars.js/issues/655) - Loading Handlebars using bower ([@niki4810](https://github.com/niki4810))
+- [#657](https://github.com/wycats/handlebars.js/pull/657) - Fixes issue where cli compiles non handlebars templates ([@chrishoage](https://github.com/chrishoage))
+- [#681](https://github.com/wycats/handlebars.js/pull/681) - Adds in-browser testing and Saucelabs CI ([@kpdecker](https://github.com/kpdecker))
+- [#661](https://github.com/wycats/handlebars.js/pull/661) - Add @first and @index to #each object iteration ([@cgp](https://github.com/cgp))
+- [#650](https://github.com/wycats/handlebars.js/pull/650) - Handlebars is MIT-licensed ([@thomasboyt](https://github.com/thomasboyt))
+- [#641](https://github.com/wycats/handlebars.js/pull/641) - Document ember testing process ([@kpdecker](https://github.com/kpdecker))
 - [#662](https://github.com/wycats/handlebars.js/issues/662) - handlebars-source 1.1.2 is missing from RubyGems.
- [#656](https://github.com/wycats/handlebars.js/issues/656) - Expose COMPILER_REVISION checks as a hook ([@machty](https://api.github.com/users/machty))
- [#668](https://github.com/wycats/handlebars.js/issues/668) - Consider publishing handlebars-runtime as a separate module on npm ([@dlmanning](https://api.github.com/users/dlmanning))
- [#679](https://github.com/wycats/handlebars.js/issues/679) - Unable to override invokePartial ([@mattbrailsford](https://api.github.com/users/mattbrailsford))
- [#646](https://github.com/wycats/handlebars.js/pull/646) - Fix "\\{{" immediately following "\{{" ([@dmarcotte](https://api.github.com/users/dmarcotte))
+- [#656](https://github.com/wycats/handlebars.js/issues/656) - Expose COMPILER_REVISION checks as a hook ([@machty](https://github.com/machty))
+- [#668](https://github.com/wycats/handlebars.js/issues/668) - Consider publishing handlebars-runtime as a separate module on npm ([@dlmanning](https://github.com/dlmanning))
+- [#679](https://github.com/wycats/handlebars.js/issues/679) - Unable to override invokePartial ([@mattbrailsford](https://github.com/mattbrailsford))
+- [#646](https://github.com/wycats/handlebars.js/pull/646) - Fix "\\{{" immediately following "\{{" ([@dmarcotte](https://github.com/dmarcotte))
 - Allow extend to work with non-prototyped objects - eb53f2e
 - Add JavascriptCompiler public API tests - 1a751b2
 - Add AST test coverage for more complex paths - ddea5be
@@ -290,8 +543,8 @@ Compatibility notes:

 ## v1.1.2 - November 5th, 2013

- [#645](https://github.com/wycats/handlebars.js/issues/645) - 1.1.1 fails under IE8 ([@kpdecker](https://api.github.com/users/kpdecker))
- [#644](https://github.com/wycats/handlebars.js/issues/644) - Using precompiled templates (AMD mode) with handlebars.runtime 1.1.1 ([@fddima](https://api.github.com/users/fddima))
+- [#645](https://github.com/wycats/handlebars.js/issues/645) - 1.1.1 fails under IE8 ([@kpdecker](https://github.com/kpdecker))
+- [#644](https://github.com/wycats/handlebars.js/issues/644) - Using precompiled templates (AMD mode) with handlebars.runtime 1.1.1 ([@fddima](https://github.com/fddima))

 - Add simple binary utility tests - 96a45a4
 - Fix empty string compilation - eea708a
@@ -308,13 +561,13 @@ Compatibility notes:

 ## v1.1.0 - November 3rd, 2013

- [#628](https://github.com/wycats/handlebars.js/pull/628) - Convert code to ES6 modules ([@kpdecker](https://api.github.com/users/kpdecker))
- [#336](https://github.com/wycats/handlebars.js/pull/336) - Add whitespace control syntax ([@kpdecker](https://api.github.com/users/kpdecker))
- [#535](https://github.com/wycats/handlebars.js/pull/535) - Fix for probable JIT error under Safari ([@sorentwo](https://api.github.com/users/sorentwo))
- [#483](https://github.com/wycats/handlebars.js/issues/483) - Add first and last @ vars to each helper ([@denniskuczynski](https://api.github.com/users/denniskuczynski))
- [#557](https://github.com/wycats/handlebars.js/pull/557) - `\\{{foo}}` escaping only works in some situations ([@dmarcotte](https://api.github.com/users/dmarcotte))
- [#552](https://github.com/wycats/handlebars.js/pull/552) - Added BOM removal flag. ([@blessenm](https://api.github.com/users/blessenm))
- [#543](https://github.com/wycats/handlebars.js/pull/543) - publish passing master builds to s3 ([@fivetanley](https://api.github.com/users/fivetanley))
+- [#628](https://github.com/wycats/handlebars.js/pull/628) - Convert code to ES6 modules ([@kpdecker](https://github.com/kpdecker))
+- [#336](https://github.com/wycats/handlebars.js/pull/336) - Add whitespace control syntax ([@kpdecker](https://github.com/kpdecker))
+- [#535](https://github.com/wycats/handlebars.js/pull/535) - Fix for probable JIT error under Safari ([@sorentwo](https://github.com/sorentwo))
+- [#483](https://github.com/wycats/handlebars.js/issues/483) - Add first and last @ vars to each helper ([@denniskuczynski](https://github.com/denniskuczynski))
+- [#557](https://github.com/wycats/handlebars.js/pull/557) - `\\{{foo}}` escaping only works in some situations ([@dmarcotte](https://github.com/dmarcotte))
+- [#552](https://github.com/wycats/handlebars.js/pull/552) - Added BOM removal flag. ([@blessenm](https://github.com/blessenm))
+- [#543](https://github.com/wycats/handlebars.js/pull/543) - publish passing master builds to s3 ([@fivetanley](https://github.com/fivetanley))

 - [#608](https://github.com/wycats/handlebars.js/issues/608) - Add `includeZero` flag to `if` conditional
 - [#498](https://github.com/wycats/handlebars.js/issues/498) - `Handlebars.compile` fails on empty string although a single blank works fine
@@ -360,7 +613,7 @@ Compatibility notes:
 ## v1.0.11 / 1.0.0-rc4 - May 13 2013

 - [#458](https://github.com/wycats/handlebars.js/issues/458) - Fix `./foo` syntax ([@jpfiset](https://github.com/jpfiset))
- [#460](https://github.com/wycats/handlebars.js/issues/460) - Allow `:` in unescaped identifers ([@jpfiset](https://github.com/jpfiset))
+- [#460](https://github.com/wycats/handlebars.js/issues/460) - Allow `:` in unescaped identifiers ([@jpfiset](https://github.com/jpfiset))
 - [#471](https://github.com/wycats/handlebars.js/issues/471) - Create release notes (These!)
 - [#456](https://github.com/wycats/handlebars.js/issues/456) - Allow escaping of `\\`
 - [#211](https://github.com/wycats/handlebars.js/issues/211) - Fix exception in `escapeExpression`
@@ -0,0 +1,5 @@
+import Handlebars = require('handlebars')
+
+declare module "handlebars/runtime" {
+   
+}
@@ -59,6 +59,7 @@ describe('ast', function() {
      equals(node.loc.end.column, lastColumn);
    }

+    /* eslint-disable no-multi-spaces */
    ast = Handlebars.parse(
              'line 1 {{line1Token}}\n'             // 1
            + ' line 2 {{line2token}}\n'            // 2
@@ -71,6 +72,7 @@ describe('ast', function() {
            + '{{else inverse}}\n'                  // 9
            + '{{else}}\n'                          // 10
            + '{{/open}}');                         // 11
+    /* eslint-enable no-multi-spaces */
    body = ast.body;

    it('gets ContentNode line numbers', function() {
@@ -312,10 +312,14 @@ describe('builtin helpers', function() {
      console.info = function(info) {
        equals('whee', info);
        called = true;
+        console.info = $info;
+        console.log = $log;
      };
      console.log = function(log) {
        equals('whee', log);
        called = true;
+        console.info = $info;
+        console.log = $log;
      };

      shouldCompileTo(string, hash, '');
@@ -329,6 +333,7 @@ describe('builtin helpers', function() {
      console.error = function(log) {
        equals('whee', log);
        called = true;
+        console.error = $error;
      };

      shouldCompileTo(string, [hash,,,, {level: '03'}], '');
@@ -343,6 +348,7 @@ describe('builtin helpers', function() {
      console.log = function(log) {
        equals('whee', log);
        called = true;
+        console.log = $log;
      };

      shouldCompileTo(string, [hash,,,, {level: '03'}], '');
@@ -385,9 +391,9 @@ describe('builtin helpers', function() {
      var hash = { blah: 'whee' };
      var called = false;

-      console.info = console.log = console.error = console.debug = function(log) {
-        equals('whee', log);
+      console.info = console.log = console.error = console.debug = function() {
        called = true;
+        console.info = console.log = console.error = console.debug = $log;
      };

      shouldCompileTo(string, hash, '');
@@ -403,6 +409,7 @@ describe('builtin helpers', function() {
        equals('foo', log2);
        equals(1, log3);
        called = true;
+        console.log = $log;
      };

      shouldCompileTo(string, hash, '');
@@ -38,6 +38,31 @@ describe('compiler', function() {
      }, Error, 'You must pass a string or Handlebars AST to Handlebars.compile. You passed [object Object]');
    });

+    it('should include the location in the error (row and column)', function() {
+      try {
+        Handlebars.compile(' \n  {{#if}}\n{{/def}}')();
+        equal(true, false, 'Statement must throw exception. This line should not be executed.');
+      } catch (err) {
+        equal(err.message, 'if doesn\'t match def - 2:5', 'Checking error message');
+        if (Object.getOwnPropertyDescriptor(err, 'column').writable) {
+          // In Safari 8, the column-property is read-only. This means that even if it is set with defineProperty,
+          // its value won't change (https://github.com/jquery/esprima/issues/1290#issuecomment-132455482)
+          // Since this was neither working in Handlebars 3 nor in 4.0.5, we only check the column for other browsers.
+          equal(err.column, 5, 'Checking error column');
+        }
+        equal(err.lineNumber, 2, 'Checking error row');
+      }
+    });
+
+    it('should include the location as enumerable property', function() {
+      try {
+        Handlebars.compile(' \n  {{#if}}\n{{/def}}')();
+        equal(true, false, 'Statement must throw exception. This line should not be executed.');
+      } catch (err) {
+        equal(err.propertyIsEnumerable('column'), true, 'Checking error column');
+      }
+    });
+
    it('can utilize AST instance', function() {
      equal(Handlebars.compile({
        type: 'Program',
@@ -48,6 +73,18 @@ describe('compiler', function() {
    it('can pass through an empty string', function() {
      equal(Handlebars.compile('')(), '');
    });
+
+    it('should not modify the options.data property(GH-1327)', function() {
+      var options = {data: [{a: 'foo'}, {a: 'bar'}]};
+      Handlebars.compile('{{#each data}}{{@index}}:{{a}} {{/each}}', options)();
+      equal(JSON.stringify(options, 0, 2), JSON.stringify({data: [{a: 'foo'}, {a: 'bar'}]}, 0, 2));
+    });
+
+    it('should not modify the options.knownHelpers property(GH-1327)', function() {
+      var options = {knownHelpers: {}};
+      Handlebars.compile('{{#each data}}{{@index}}:{{a}} {{/each}}', options)();
+      equal(JSON.stringify(options, 0, 2), JSON.stringify({knownHelpers: {}}, 0, 2));
+    });
  });

  describe('#precompile', function() {
@@ -4,7 +4,13 @@ var fs = require('fs'),
    vm = require('vm');

 global.Handlebars = 'no-conflict';
-vm.runInThisContext(fs.readFileSync(__dirname + '/../../dist/handlebars.js'), 'dist/handlebars.js');
+
+var filename = 'dist/handlebars.js';
+if (global.minimizedTest) {
+  filename = 'dist/handlebars.min.js';
+}
+var distHandlebars = fs.readFileSync(require.resolve(`../../${filename}`), 'utf-8');
+vm.runInThisContext(distHandlebars, filename);

 global.CompilerContext = {
  browser: true,
@@ -1,3 +1,5 @@
+var global = (function() { return this; }());
+
 var AssertError;
 if (Error.captureStackTrace) {
  AssertError = function AssertError(message, caller) {
@@ -61,12 +63,12 @@ global.shouldThrow = function(callback, type, msg) {
  try {
    callback();
    failed = true;
-  } catch (err) {
-    if (type && !(err instanceof type)) {
-      throw new AssertError('Type failure: ' + err);
+  } catch (caught) {
+    if (type && !(caught instanceof type)) {
+      throw new AssertError('Type failure: ' + caught);
    }
-    if (msg && !(msg.test ? msg.test(err.message) : msg === err.message)) {
-      throw new AssertError('Throw mismatch: Expected ' + err.message + ' to match ' + msg + '\n\n' + err.stack, shouldThrow);
+    if (msg && !(msg.test ? msg.test(caught.message) : msg === caught.message)) {
+      throw new AssertError('Throw mismatch: Expected ' + caught.message + ' to match ' + msg + '\n\n' + caught.stack, shouldThrow);
    }
  }
  if (failed) {
@@ -7,19 +7,35 @@ var errors = 0,
    testDir = path.dirname(__dirname),
    grep = process.argv[2];

+// Lazy hack, but whatever
+if (grep === '--min') {
+  global.minimizedTest = true;
+  grep = undefined;
+}
+
 var files = fs.readdirSync(testDir)
      .filter(function(name) { return (/.*\.js$/).test(name); })
-      .map(function(name) { return testDir + '/' + name; });
+      .map(function(name) { return testDir + path.sep + name; });

-run('./runtime', function() {
-  run('./browser', function() {
-    run('./node', function() {
+if (global.minimizedTest) {
+  run('./runtime', function() {
+    run('./browser', function() {
      /* eslint-disable no-process-exit */
      process.exit(errors);
      /* eslint-enable no-process-exit */
    });
  });
-});
+} else {
+  run('./runtime', function() {
+    run('./browser', function() {
+      run('./node', function() {
+        /* eslint-disable no-process-exit */
+        process.exit(errors);
+        /* eslint-enable no-process-exit */
+      });
+    });
+  });
+}


 function run(env, callback) {
@@ -4,7 +4,12 @@ var fs = require('fs'),
    vm = require('vm');

 global.Handlebars = 'no-conflict';
-vm.runInThisContext(fs.readFileSync(__dirname + '/../../dist/handlebars.runtime.js'), 'dist/handlebars.runtime.js');
+
+var filename = 'dist/handlebars.runtime.js';
+if (global.minimizedTest) {
+  filename = 'dist/handlebars.runtime.min.js';
+}
+vm.runInThisContext(fs.readFileSync(__dirname + '/../../' + filename), filename);

 var parse = require('../../dist/cjs/handlebars/compiler/base').parse;
 var compiler = require('../../dist/cjs/handlebars/compiler/compiler');
@@ -113,7 +113,7 @@ describe('helpers', function() {
      { 'name': 'Yehuda', 'id': 2 }
    ]};

-    shouldCompileTo(source, [data, {link: link}], '<ul><li><a href=\"/people/1\">Alan</a></li><li><a href=\"/people/2\">Yehuda</a></li></ul>');
+    shouldCompileTo(source, [data, {link: link}], '<ul><li><a href="/people/1">Alan</a></li><li><a href="/people/2">Yehuda</a></li></ul>');
  });

  it('block helper for undefined value', function() {
@@ -1,3 +1,4 @@
+<!doctype html>
 <html>
  <head>
    <title>Mocha</title>
@@ -39,13 +39,19 @@ describe('parser', function() {
  it('parses mustaches with - in a path', function() {
    equals(astFor('{{foo-bar}}'), '{{ PATH:foo-bar [] }}\n');
  });
+  it('parses mustaches with escaped [] in a path', function() {
+    equals(astFor('{{[foo[\\]]}}'), '{{ PATH:foo[] [] }}\n');
+  });
+  it('parses escaped \\\\ in path', function() {
+    equals(astFor('{{[foo\\\\]}}'), '{{ PATH:foo\\ [] }}\n');
+  });

  it('parses mustaches with parameters', function() {
    equals(astFor('{{foo bar}}'), '{{ PATH:foo [PATH:bar] }}\n');
  });

  it('parses mustaches with string parameters', function() {
-    equals(astFor('{{foo bar \"baz\" }}'), '{{ PATH:foo [PATH:bar, "baz"] }}\n');
+    equals(astFor('{{foo bar "baz" }}'), '{{ PATH:foo [PATH:bar, "baz"] }}\n');
  });

  it('parses mustaches with NUMBER parameters', function() {
@@ -81,10 +87,10 @@ describe('parser', function() {

    equals(astFor("{{foo bat='bam'}}"), '{{ PATH:foo [] HASH{bat="bam"} }}\n');

-    equals(astFor('{{foo omg bar=baz bat=\"bam\"}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam"} }}\n');
-    equals(astFor('{{foo omg bar=baz bat=\"bam\" baz=1}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=NUMBER{1}} }}\n');
-    equals(astFor('{{foo omg bar=baz bat=\"bam\" baz=true}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{true}} }}\n');
-    equals(astFor('{{foo omg bar=baz bat=\"bam\" baz=false}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{false}} }}\n');
+    equals(astFor('{{foo omg bar=baz bat="bam"}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam"} }}\n');
+    equals(astFor('{{foo omg bar=baz bat="bam" baz=1}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=NUMBER{1}} }}\n');
+    equals(astFor('{{foo omg bar=baz bat="bam" baz=true}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{true}} }}\n');
+    equals(astFor('{{foo omg bar=baz bat="bam" baz=false}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{false}} }}\n');
  });

  it('parses contents followed by a mustache', function() {
@@ -130,7 +136,7 @@ describe('parser', function() {
  });

  it('parses a multi-line comment', function() {
-    equals(astFor('{{!\nthis is a multi-line comment\n}}'), "{{! \'\nthis is a multi-line comment\n\' }}\n");
+    equals(astFor('{{!\nthis is a multi-line comment\n}}'), "{{! '\nthis is a multi-line comment\n' }}\n");
  });

  it('parses an inverse section', function() {
@@ -103,7 +103,7 @@ describe('partials', function() {
    shouldThrow(function() {
      var undef;
      handlebarsEnv.registerPartial('undefined_test', undef);
-    }, Handlebars.Exception, 'Attempting to register a partial as undefined');
+    }, Handlebars.Exception, 'Attempting to register a partial called "undefined_test" as undefined');
  });

  it('rendering template partial in vm mode throws an exception', function() {
@@ -249,6 +249,13 @@ describe('partials', function() {
        true,
        'success');
    });
+    it('should be able to render the partial-block twice', function() {
+      shouldCompileToWithPartials(
+          '{{#> dude}}success{{/dude}}',
+          [{}, {}, {dude: '{{> @partial-block }} {{> @partial-block }}'}],
+          true,
+          'success success');
+    });
    it('should render block from partial with context', function() {
      shouldCompileToWithPartials(
        '{{#> dude}}{{value}}{{/dude}}',
@@ -256,6 +263,41 @@ describe('partials', function() {
        true,
        'success');
    });
+
+    it('should be able to access the @data frame from a partial-block', function() {
+      shouldCompileToWithPartials(
+        '{{#> dude}}in-block: {{@root/value}}{{/dude}}',
+        [{value: 'success'}, {}, {dude: '<code>before-block: {{@root/value}} {{>   @partial-block }}</code>'}],
+        true,
+        '<code>before-block: success in-block: success</code>');
+    });
+
+    it('should allow the #each-helper to be used along with partial-blocks', function() {
+      shouldCompileToWithPartials(
+        '<template>{{#> list value}}value = {{.}}{{/list}}</template>',
+        [
+          {value: ['a', 'b', 'c']},
+          {},
+          {
+            list: '<list>{{#each .}}<item>{{> @partial-block}}</item>{{/each}}</list>'
+          }
+        ],
+        true,
+        '<template><list><item>value = a</item><item>value = b</item><item>value = c</item></list></template>');
+    });
+    it('should render block from partial with context (twice)', function() {
+      shouldCompileToWithPartials(
+          '{{#> dude}}{{value}}{{/dude}}',
+          [
+            {context: {value: 'success'}},
+            {},
+            {
+              dude: '{{#with context}}{{> @partial-block }} {{> @partial-block }}{{/with}}'
+            }
+          ],
+          true,
+          'success success');
+    });
    it('should render block from partial with context', function() {
      shouldCompileToWithPartials(
        '{{#> dude}}{{../context/value}}{{/dude}}',
@@ -270,6 +312,64 @@ describe('partials', function() {
        true,
        'success');
    });
+    it('should render nested partial blocks', function() {
+      shouldCompileToWithPartials(
+        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
+        [
+          {value: 'success'},
+          {},
+          {
+            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}</outer>',
+            nested: '<nested>{{> @partial-block}}</nested>'
+          }
+        ],
+        true,
+        '<template><outer><nested><outer-block>success</outer-block></nested></outer></template>');
+    });
+    it('should render nested partial blocks at different nesting levels', function() {
+      shouldCompileToWithPartials(
+        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
+        [
+          {value: 'success'},
+          {},
+          {
+            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}</outer>',
+            nested: '<nested>{{> @partial-block}}</nested>'
+          }
+        ],
+        true,
+        '<template><outer><nested><outer-block>success</outer-block></nested>success</outer></template>');
+    });
+    it('should render nested partial blocks at different nesting levels (twice)', function() {
+      shouldCompileToWithPartials(
+        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
+        [
+          {value: 'success'},
+          {},
+          {
+            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}+{{> @partial-block}}</outer>',
+            nested: '<nested>{{> @partial-block}}</nested>'
+          }
+        ],
+        true,
+        '<template><outer><nested><outer-block>success success</outer-block></nested>success+success</outer></template>');
+    });
+    it('should render nested partial blocks (twice at each level)', function() {
+      shouldCompileToWithPartials(
+        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
+        [
+          {value: 'success'},
+          {},
+          {
+            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}</outer>',
+            nested: '<nested>{{> @partial-block}}{{> @partial-block}}</nested>'
+          }
+        ],
+        true,
+        '<template><outer>' +
+        '<nested><outer-block>success success</outer-block><outer-block>success success</outer-block></nested>' +
+        '</outer></template>');
+    });
  });

  describe('inline partials', function() {
@@ -309,6 +409,33 @@ describe('partials', function() {
        true,
        'success');
    });
+    it('should render nested inline partials', function() {
+      shouldCompileToWithPartials(
+        '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}}</outer-block>{{/inner}}{{/inline}}' +
+        '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
+        '{{#>outer}}{{value}}{{/outer}}',
+        [{value: 'success'}, {}, {}],
+        true,
+        '<inner><outer-block>success</outer-block></inner>');
+    });
+    it('should render nested inline partials with partial-blocks on different nesting levels', function() {
+      shouldCompileToWithPartials(
+        '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}}</outer-block>{{/inner}}{{>@partial-block}}{{/inline}}' +
+        '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
+        '{{#>outer}}{{value}}{{/outer}}',
+        [{value: 'success'}, {}, {}],
+        true,
+        '<inner><outer-block>success</outer-block></inner>success');
+    });
+    it('should render nested inline partials (twice at each level)', function() {
+      shouldCompileToWithPartials(
+        '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}} {{>@partial-block}}</outer-block>{{/inner}}{{/inline}}' +
+        '{{#*inline "inner"}}<inner>{{>@partial-block}}{{>@partial-block}}</inner>{{/inline}}' +
+        '{{#>outer}}{{value}}{{/outer}}',
+        [{value: 'success'}, {}, {}],
+        true,
+        '<inner><outer-block>success success</outer-block><outer-block>success success</outer-block></inner>');
+    });
  });

  it('should pass compiler flags', function() {
@@ -12,6 +12,8 @@ describe('precompiler', function() {

  var log,
      logFunction,
+      errorLog,
+      errorLogFunction,

      precompile,
      minify,
@@ -26,16 +28,51 @@ describe('precompiler', function() {
      content,
      writeFileSync;

+  /**
+   * Mock the Module.prototype.require-function such that an error is thrown, when "uglify-js" is loaded.
+   *
+   * The function cleans up its mess when "callback" is finished
+   *
+   * @param {Error} loadError the error that should be thrown if uglify is loaded
+   * @param {function} callback a callback-function to run when the mock is active.
+   */
+  function mockRequireUglify(loadError, callback) {
+    var Module = require('module');
+    var _resolveFilename = Module._resolveFilename;
+    delete require.cache[require.resolve('uglify-js')];
+    delete require.cache[require.resolve('../dist/cjs/precompiler')];
+    Module._resolveFilename = function(request, mod) {
+      if (request === 'uglify-js') {
+        throw loadError;
+      }
+      return _resolveFilename.call(this, request, mod);
+    };
+    try {
+      callback();
+    } finally {
+      Module._resolveFilename = _resolveFilename;
+      delete require.cache[require.resolve('uglify-js')];
+      delete require.cache[require.resolve('../dist/cjs/precompiler')];
+    }
+  }
+
  beforeEach(function() {
    precompile = Handlebars.precompile;
    minify = uglify.minify;
    writeFileSync = fs.writeFileSync;

+    // Mock stdout and stderr
    logFunction = console.log;
    log = '';
    console.log = function() {
      log += Array.prototype.join.call(arguments, '');
    };
+    errorLogFunction = console.error;
+    errorLog = '';
+    console.error = function() {
+      errorLog += Array.prototype.join.call(arguments, '');
+    };
+
    fs.writeFileSync = function(_file, _content) {
      file = _file;
      content = _content;
@@ -46,6 +83,7 @@ describe('precompiler', function() {
    uglify.minify = minify;
    fs.writeFileSync = writeFileSync;
    console.log = logFunction;
+    console.error = errorLogFunction;
  });

  it('should output version', function() {
@@ -148,18 +186,41 @@ describe('precompiler', function() {
    equal(log, 'min');
  });

+  it('should omit minimization gracefully, if uglify-js is missing', function() {
+    var error = new Error("Cannot find module 'uglify-js'");
+    error.code = 'MODULE_NOT_FOUND';
+    mockRequireUglify(error, function() {
+      var Precompiler = require('../dist/cjs/precompiler');
+      Handlebars.precompile = function() { return 'amd'; };
+      Precompiler.cli({templates: [emptyTemplate], min: true});
+      equal(/template\(amd\)/.test(log), true);
+      equal(/\n/.test(log), true);
+      equal(/Code minimization is disabled/.test(errorLog), true);
+    });
+  });
+
+  it('should fail on errors (other than missing module) while loading uglify-js', function() {
+    mockRequireUglify(new Error('Mock Error'), function() {
+      shouldThrow(function() {
+        var Precompiler = require('../dist/cjs/precompiler');
+        Handlebars.precompile = function() { return 'amd'; };
+        Precompiler.cli({templates: [emptyTemplate], min: true});
+      }, Error, 'Mock Error');
+    });
+  });
+
  it('should output map', function() {
    Precompiler.cli({templates: [emptyTemplate], map: 'foo.js.map'});

    equal(file, 'foo.js.map');
-    equal(/sourceMappingURL=/.test(log), true);
+    equal(log.match(/sourceMappingURL=/g).length, 1);
  });

  it('should output map', function() {
    Precompiler.cli({templates: [emptyTemplate], min: true, map: 'foo.js.map'});

    equal(file, 'foo.js.map');
-    equal(/sourceMappingURL=/.test(log), true);
+    equal(log.match(/sourceMappingURL=/g).length, 1);
  });

  describe('#loadTemplates', function() {
@@ -204,6 +204,25 @@ describe('Regressions', function() {
    shouldCompileTo('{{#each array}}{{@index}}{{.}}{{/each}}', {array: array}, '1foo3bar');
  });

+  it('GH-1093: Undefined helper context', function() {
+    var obj = {foo: undefined, bar: 'bat'};
+    var helpers = {
+      helper: function() {
+        // It's valid to execute a block against an undefined context, but
+        // helpers can not do so, so we expect to have an empty object here;
+        for (var name in this) {
+          if (this.hasOwnProperty(name)) {
+            return 'found';
+          }
+        }
+        // And to make IE happy, check for the known string as length is not enumerated.
+        return (this == 'bat' ? 'found' : 'not');
+      }
+    };
+
+    shouldCompileTo('{{#each obj}}{{{helper}}}{{.}}{{/each}}', [{obj: obj}, helpers], 'notfoundbat');
+  });
+
  it('should support multiple levels of inline partials', function() {
    var string = '{{#> layout}}{{#*inline "subcontent"}}subcontent{{/inline}}{{/layout}}';
    var partials = {
@@ -220,4 +239,56 @@ describe('Regressions', function() {
    };
    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'doctypelayoutsubcontent');
  });
+  it('GH-1099: should support greater than 3 nested levels of inline partials', function() {
+    var string = '{{#> layout}}Outer{{/layout}}';
+    var partials = {
+      layout: '{{#> inner}}Inner{{/inner}}{{> @partial-block }}',
+      inner: ''
+    };
+    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'Outer');
+  });
+
+  it('GH-1135 : Context handling within each iteration', function() {
+    var obj = {array: [1], name: 'John'};
+    var helpers = {
+      myif: function(conditional, options) {
+        if (conditional) {
+            return options.fn(this);
+        } else {
+            return options.inverse(this);
+        }
+      }
+    };
+
+    shouldCompileTo(
+      '{{#each array}}\n'
+      + ' 1. IF: {{#if true}}{{../name}}-{{../../name}}-{{../../../name}}{{/if}}\n'
+      + ' 2. MYIF: {{#myif true}}{{../name}}={{../../name}}={{../../../name}}{{/myif}}\n'
+      + '{{/each}}', [obj, helpers],
+      ' 1. IF: John--\n'
+      + ' 2. MYIF: John==\n');
+  });
+
+  it('GH-1186: Support block params for existing programs', function() {
+    var string =
+        '{{#*inline "test"}}{{> @partial-block }}{{/inline}}'
+      + '{{#>test }}{{#each listOne as |item|}}{{ item }}{{/each}}{{/test}}'
+      + '{{#>test }}{{#each listTwo as |item|}}{{ item }}{{/each}}{{/test}}';
+
+    shouldCompileTo(string, { listOne: ['a'], listTwo: ['b']}, 'ab', '');
+  });
+
+  it('GH-1319: "unless" breaks when "each" value equals "null"', function() {
+    var string = '{{#each list}}{{#unless ./prop}}parent={{../value}} {{/unless}}{{/each}}';
+    shouldCompileTo(string, { value: 'parent', list: [ null, 'a'] }, 'parent=parent parent=parent ', '');
+  });
+
+  it('GH-1341: 4.0.7 release breaks {{#if @partial-block}} usage', function() {
+    var string = 'template {{>partial}} template';
+    var partials = {
+      partialWithBlock: '{{#if @partial-block}} block {{> @partial-block}} block {{/if}}',
+      partial: '{{#> partialWithBlock}} partial {{/partialWithBlock}}'
+    };
+    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'template  block  partial  block  template');
+  });
 });
@@ -0,0 +1,35 @@
+describe('security issues', function() {
+    describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
+        it('should not allow constructors to be accessed', function() {
+            shouldCompileTo('{{constructor.name}}', {}, '');
+            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {}, '');
+        });
+
+        it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+            shouldCompileTo('{{constructor.name}}', {'constructor': {
+                'name': 'here we go'
+            }}, 'here we go');
+            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {'constructor': {
+                'name': 'here we go'
+            }}, 'here we go');
+        });
+
+        it('should allow prototype properties that are not constructors', function() {
+            function TestClass() {
+            }
+
+            Object.defineProperty(TestClass.prototype, 'abc', {
+                get: function() {
+                    return 'xyz';
+                }
+
+            });
+
+            shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
+                new TestClass(), 'xyz');
+            shouldCompileTo('{{#with this as |obj|}}{{lookup obj "abc"}}{{/with}}',
+                new TestClass(), 'xyz');
+
+        });
+    });
+});
@@ -25,8 +25,8 @@ describe('spec', function() {
          // We nest the entire response from partials, not just the literals
          || (name === 'partials.json' && test.name === 'Standalone Indentation')

-          || (/\{\{\=/).test(test.template)
-          || _.any(test.partials, function(partial) { return (/\{\{\=/).test(partial); })) {
+          || (/\{\{=/).test(test.template)
+          || _.any(test.partials, function(partial) { return (/\{\{=/).test(partial); })) {
        it.skip(name + ' - ' + test.name);
        return;
      }
@@ -146,6 +146,11 @@ describe('Tokenizer', function() {
    shouldMatchTokens(result, ['OPEN', 'ID', 'SEP', 'ID', 'CLOSE', 'OPEN', 'ID', 'SEP', 'ID', 'CLOSE']);
  });

+  it('allows escaped literals in []', function() {
+    var result = tokenize('{{foo.[bar\\]]}}');
+    shouldMatchTokens(result, ['OPEN', 'ID', 'SEP', 'ID', 'CLOSE']);
+  });
+
  it('tokenizes {{.}} as OPEN ID CLOSE', function() {
    var result = tokenize('{{.}}');
    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE']);
@@ -277,13 +282,13 @@ describe('Tokenizer', function() {
  });

  it('tokenizes mustaches with String params as "OPEN ID ID STRING CLOSE"', function() {
-    var result = tokenize('{{ foo bar \"baz\" }}');
+    var result = tokenize('{{ foo bar "baz" }}');
    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'STRING', 'CLOSE']);
    shouldBeToken(result[3], 'STRING', 'baz');
  });

  it('tokenizes mustaches with String params using single quotes as "OPEN ID ID STRING CLOSE"', function() {
-    var result = tokenize("{{ foo bar \'baz\' }}");
+    var result = tokenize("{{ foo bar 'baz' }}");
    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'STRING', 'CLOSE']);
    shouldBeToken(result[3], 'STRING', 'baz');
  });
@@ -360,13 +365,13 @@ describe('Tokenizer', function() {
    result = tokenize('{{ foo bar\n  baz=bat }}');
    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'ID', 'CLOSE']);

-    result = tokenize('{{ foo bar baz=\"bat\" }}');
+    result = tokenize('{{ foo bar baz="bat" }}');
    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'STRING', 'CLOSE']);

-    result = tokenize('{{ foo bar baz=\"bat\" bam=wot }}');
+    result = tokenize('{{ foo bar baz="bat" bam=wot }}');
    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'STRING', 'ID', 'EQUALS', 'ID', 'CLOSE']);

-    result = tokenize('{{foo omg bar=baz bat=\"bam\"}}');
+    result = tokenize('{{foo omg bar=baz bat="bam"}}');
    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'ID', 'ID', 'EQUALS', 'STRING', 'CLOSE']);
    shouldBeToken(result[2], 'ID', 'omg');
  });
@@ -4,7 +4,7 @@
 %{

 function strip(start, end) {
-  return yytext = yytext.substr(start, yyleng-end);
+  return yytext = yytext.substring(start, yyleng - end + start);
 }

 %}
@@ -59,7 +59,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}
                                  if (this.conditionStack[this.conditionStack.length-1] === 'raw') {
                                    return 'CONTENT';
                                  } else {
-                                    yytext = yytext.substr(5, yyleng-9);
+                                    strip(5, 9);
                                    return 'END_RAW_BLOCK';
                                  }
                                 }
@@ -120,7 +120,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}

 <mu>{ID}                         return 'ID';

-<mu>'['[^\]]*']'                 return 'ID';
+<mu>'['('\\]'|[^\]])*']'         yytext = yytext.replace(/\\([\\\]])/g,'$1'); return 'ID';
 <mu>.                            return 'INVALID';

 <INITIAL,mu><<EOF>>              return 'EOF';
@@ -1 +1 @@
-/* istanbul ignore next */
+// File ignored in coverage tests via setting in .istanbul.yml
@@ -1,2 +1 @@
-exports.__esModule = true;
-exports['default'] = handlebars;
+export default handlebars;
@@ -1,5 +1,5 @@
 var _ = require('underscore'),
-    async = require('async'),
+    async = require('neo-async'),
    metrics = require('../bench');

 module.exports = function(grunt) {
@@ -1,5 +1,5 @@
 var _ = require('underscore'),
-    async = require('async'),
+    async = require('neo-async'),
    AWS = require('aws-sdk'),
    git = require('./util/git'),
    semver = require('semver');
@@ -15,14 +15,22 @@ module.exports = function(grunt) {
      git.commitInfo(function(err, info) {
        grunt.log.writeln('tag: ' + info.tagName);

+        var files = [];
+
+        // Publish the master as "latest" and with the commit-id
        if (info.isMaster) {
+          files.push('-latest');
+          files.push('-' + info.head);
+        }
+
+        // Publish tags by their tag-name
+        if (info.tagName && semver.valid(info.tagName)) {
+          files.push('-' + info.tagName);
+        }
+
+        if (files.length > 0) {
          initSDK();
-
-          var files = ['-latest', '-' + info.head];
-          if (info.tagName && semver.valid(info.tagName)) {
-            files.push('-' + info.tagName);
-          }
-
+          grunt.log.writeln('publishing files: ' + JSON.stringify(files));
          publish(fileMap(files), done);
        } else {
          // Silently ignore for branches
@@ -58,7 +66,7 @@ module.exports = function(grunt) {
    var s3 = new AWS.S3(),
        bucket = process.env.S3_BUCKET_NAME;

-    async.forEach(_.keys(files), function(file, callback) {
+    async.each(_.keys(files), function(file, callback) {
        var params = {Bucket: bucket, Key: file, Body: grunt.file.read(files[file])};
        s3.putObject(params, function(err) {
          if (err) {
@@ -1,17 +1,27 @@
 var childProcess = require('child_process'),
-    fs = require('fs');
+    fs = require('fs'),
+    os = require('os');

 module.exports = function(grunt) {
  grunt.registerTask('test:bin', function() {
    var done = this.async();

-    childProcess.exec('./bin/handlebars -a spec/artifacts/empty.handlebars', function(err, stdout) {
+    var cmd = './bin/handlebars';
+    var args = [ '-a', 'spec/artifacts/empty.handlebars' ];
+
+    // On Windows, the executable handlebars.js file cannot be run directly
+    if (os.platform() === 'win32') {
+      args.unshift(cmd);
+      cmd = process.argv[0];
+    }
+    childProcess.execFile(cmd, args, function(err, stdout) {
      if (err) {
        throw err;
      }

-      var expected = fs.readFileSync('./spec/expected/empty.amd.js');
-      if (stdout.toString() !== expected.toString()) {
+      var expected = fs.readFileSync('./spec/expected/empty.amd.js').toString().replace(/\r\n/g, '\n');
+
+      if (stdout.toString() !== expected) {
        throw new Error('Expected binary output differed:\n\n"' + stdout + '"\n\n"' + expected + '"');
      }

@@ -32,7 +42,18 @@ module.exports = function(grunt) {
  grunt.registerTask('test:cov', function() {
    var done = this.async();

-    var runner = childProcess.fork('node_modules/.bin/istanbul', ['cover', '--source-map', '--', './spec/env/runner.js'], {stdio: 'inherit'});
+    var runner = childProcess.fork('node_modules/istanbul/lib/cli.js', ['cover', '--source-map', '--', './spec/env/runner.js'], {stdio: 'inherit'});
+    runner.on('close', function(code) {
+      if (code != 0) {
+        grunt.fatal(code + ' tests failed');
+      }
+      done();
+    });
+  });
+  grunt.registerTask('test:min', function() {
+    var done = this.async();
+
+    var runner = childProcess.fork('./spec/env/runner', ['--min'], {stdio: 'inherit'});
    runner.on('close', function(code) {
      if (code != 0) {
        grunt.fatal(code + ' tests failed');
@@ -44,7 +65,7 @@ module.exports = function(grunt) {
  grunt.registerTask('test:check-cov', function() {
    var done = this.async();

-    var runner = childProcess.fork('node_modules/.bin/istanbul', ['check-coverage', '--statements', '100', '--functions', '100', '--branches', '100', '--lines 100'], {stdio: 'inherit'});
+    var runner = childProcess.fork('node_modules/istanbul/lib/cli.js', ['check-coverage', '--statements', '100', '--functions', '100', '--branches', '100', '--lines 100'], {stdio: 'inherit'});
    runner.on('close', function(code) {
      if (code != 0) {
        grunt.fatal('Coverage check failed: ' + code);
@@ -1,4 +1,4 @@
-var async = require('async'),
+var async = require('neo-async'),
    git = require('./util/git'),
    semver = require('semver');

@@ -20,6 +20,7 @@ module.exports = function(grunt) {
    async.each([
        ['lib/handlebars/base.js', (/const VERSION = ['"](.*)['"];/), 'const VERSION = \'' + version + '\';'],
        ['components/bower.json', (/"version":.*/), '"version": "' + version + '",'],
+        ['components/package.json', /"version":.*/, '"version": "' + version + '",'],
        ['components/handlebars.js.nuspec', (/<version>.*<\/version>/), '<version>' + version + '</version>']
      ],
      function(args, callback) {
@@ -0,0 +1,384 @@
+/* These definitions were imported from https://github.com/DefinitelyTyped/DefinitelyTyped
+ * and includes previous contributions from the DefinitelyTyped community by:
+ *   - Albert Willemsen <https://github.com/AlbertWillemsen-Centric>
+ *   - Boris Yankov <https://github.com/borisyankov>
+ *   - Jessica Franco <https://github.com/Kovensky>
+ *   - Masahiro Wakame <https://github.com/vvakame>
+ *   - Raanan Weber <https://github.com/RaananW>
+ *   - Sergei Dorogin <https://github.com/evil-shrike>
+ *   - webbiesdk <https://github.com/webbiesdk>
+ *   - Andrew Leedham <https://github.com/AndrewLeedham>
+ *   - Nils Knappmeier <https://github.com/nknapp>
+ * For full history prior to their migration to handlebars.js, please see:
+ * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/index.d.ts
+ */
+// TypeScript Version: 2.3
+
+declare namespace Handlebars {
+  export interface TemplateDelegate<T = any> {
+      (context: T, options?: RuntimeOptions): string;
+  }
+
+  export type Template<T = any> = TemplateDelegate<T>|string;
+
+  export interface RuntimeOptions {
+      partial?: boolean;
+      depths?: any[];
+      helpers?: { [name: string]: Function };
+      partials?: { [name: string]: HandlebarsTemplateDelegate };
+      decorators?: { [name: string]: Function };
+      data?: any;
+      blockParams?: any[];
+  }
+
+  export interface HelperOptions {
+      fn: TemplateDelegate;
+      inverse: TemplateDelegate;
+      hash: any;
+      data?: any;
+  }
+
+  export interface HelperDelegate {
+      (context?: any, arg1?: any, arg2?: any, arg3?: any, arg4?: any, arg5?: any, options?: HelperOptions): any;
+  }
+  export interface HelperDeclareSpec {
+      [key: string]: HelperDelegate;
+  }
+
+  export interface ParseOptions {
+      srcName?: string,
+      ignoreStandalone?: boolean
+  }
+
+  export function registerHelper(name: string, fn: HelperDelegate): void;
+  export function registerHelper(name: HelperDeclareSpec): void;
+  export function unregisterHelper(name: string): void;
+
+  export function registerPartial(name: string, fn: Template): void;
+  export function registerPartial(spec: { [name: string]: HandlebarsTemplateDelegate }): void;
+  export function unregisterPartial(name: string): void;
+
+  // TODO: replace Function with actual signature
+  export function registerDecorator(name: string, fn: Function): void;
+  export function unregisterDecorator(name: string): void;
+
+  export function K(): void;
+  export function createFrame(object: any): any;
+  export function blockParams(obj: any[], ids: any[]): any[];
+  export function Exception(message: string): void;
+  export function log(level: number, obj: any): void;
+  export function parse(input: string, options?: ParseOptions): hbs.AST.Program;
+  export function compile<T = any>(input: any, options?: CompileOptions): HandlebarsTemplateDelegate<T>;
+  export function precompile(input: any, options?: PrecompileOptions): TemplateSpecification;
+  export function template<T = any>(precompilation: TemplateSpecification): HandlebarsTemplateDelegate<T>;
+
+  export function create(): typeof Handlebars;
+
+  export const escapeExpression: typeof Utils.escapeExpression;
+  //export const Utils: typeof hbs.Utils;
+  export const logger: Logger;
+  export const templates: HandlebarsTemplates;
+  export const helpers: { [name: string]: HelperDelegate };
+  export const partials: { [name: string]: any };
+  // TODO: replace Function with actual signature
+  export const decorators: { [name: string]: Function };
+
+  export function noConflict(): typeof Handlebars;
+
+  export class SafeString {
+      constructor(str: string);
+      toString(): string;
+      toHTML(): string;
+  }
+
+  export namespace Utils {
+      export function escapeExpression(str: string): string;
+      export function createFrame(object: any): any;
+      export function blockParams(obj: any[], ids: any[]): any[];
+      export function isEmpty(obj: any) : boolean;
+      export function extend(obj: any, ...source: any[]): any;
+      export function toString(obj: any): string;
+      export function isArray(obj: any): boolean;
+      export function isFunction(obj: any): boolean;
+  }
+
+  export namespace AST {
+      export const helpers: hbs.AST.helpers;
+  }
+
+  interface ICompiler {
+      accept(node: hbs.AST.Node): void;
+      Program(program: hbs.AST.Program): void;
+      BlockStatement(block: hbs.AST.BlockStatement): void;
+      PartialStatement(partial: hbs.AST.PartialStatement): void;
+      PartialBlockStatement(partial: hbs.AST.PartialBlockStatement): void;
+      DecoratorBlock(decorator: hbs.AST.DecoratorBlock): void;
+      Decorator(decorator: hbs.AST.Decorator): void;
+      MustacheStatement(mustache: hbs.AST.MustacheStatement): void;
+      ContentStatement(content: hbs.AST.ContentStatement): void;
+      CommentStatement(comment?: hbs.AST.CommentStatement): void;
+      SubExpression(sexpr: hbs.AST.SubExpression): void;
+      PathExpression(path: hbs.AST.PathExpression): void;
+      StringLiteral(str: hbs.AST.StringLiteral): void;
+      NumberLiteral(num: hbs.AST.NumberLiteral): void;
+      BooleanLiteral(bool: hbs.AST.BooleanLiteral): void;
+      UndefinedLiteral(): void;
+      NullLiteral(): void;
+      Hash(hash: hbs.AST.Hash): void;
+  }
+
+  export class Visitor implements ICompiler {
+      accept(node: hbs.AST.Node): void;
+      acceptKey(node: hbs.AST.Node, name: string): void;
+      acceptArray(arr: hbs.AST.Expression[]): void;
+      Program(program: hbs.AST.Program): void;
+      BlockStatement(block: hbs.AST.BlockStatement): void;
+      PartialStatement(partial: hbs.AST.PartialStatement): void;
+      PartialBlockStatement(partial: hbs.AST.PartialBlockStatement): void;
+      DecoratorBlock(decorator: hbs.AST.DecoratorBlock): void;
+      Decorator(decorator: hbs.AST.Decorator): void;
+      MustacheStatement(mustache: hbs.AST.MustacheStatement): void;
+      ContentStatement(content: hbs.AST.ContentStatement): void;
+      CommentStatement(comment?: hbs.AST.CommentStatement): void;
+      SubExpression(sexpr: hbs.AST.SubExpression): void;
+      PathExpression(path: hbs.AST.PathExpression): void;
+      StringLiteral(str: hbs.AST.StringLiteral): void;
+      NumberLiteral(num: hbs.AST.NumberLiteral): void;
+      BooleanLiteral(bool: hbs.AST.BooleanLiteral): void;
+      UndefinedLiteral(): void;
+      NullLiteral(): void;
+      Hash(hash: hbs.AST.Hash): void;
+  }
+
+
+  export interface ResolvePartialOptions {
+    name: string;
+    helpers?: { [name: string]: Function };
+    partials?: { [name: string]: HandlebarsTemplateDelegate };
+    decorators?: { [name: string]: Function };
+    data?: any;
+  }
+
+  export namespace VM {
+    /**
+     * @deprecated
+     */
+    export function resolvePartial<T = any>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: ResolvePartialOptions): HandlebarsTemplateDelegate<T>;
+  }
+}
+
+/**
+* Implement this interface on your MVW/MVVM/MVC views such as Backbone.View
+**/
+interface HandlebarsTemplatable {
+  template: HandlebarsTemplateDelegate;
+}
+
+// NOTE: for backward compatibility of this typing
+type HandlebarsTemplateDelegate<T = any> = Handlebars.TemplateDelegate<T>;
+
+interface HandlebarsTemplates {
+  [index: string]: HandlebarsTemplateDelegate;
+}
+
+interface TemplateSpecification {
+
+}
+
+// for backward compatibility of this typing
+type RuntimeOptions = Handlebars.RuntimeOptions;
+
+interface CompileOptions {
+  data?: boolean;
+  compat?: boolean;
+  knownHelpers?: KnownHelpers;
+  knownHelpersOnly?: boolean;
+  noEscape?: boolean;
+  strict?: boolean;
+  assumeObjects?: boolean;
+  preventIndent?: boolean;
+  ignoreStandalone?: boolean;
+  explicitPartialContext?: boolean;
+}
+
+type KnownHelpers = {
+  [name in BuiltinHelperName | CustomHelperName]: boolean;
+};
+
+type BuiltinHelperName =
+  "helperMissing"|
+  "blockHelperMissing"|
+  "each"|
+  "if"|
+  "unless"|
+  "with"|
+  "log"|
+  "lookup";
+
+type CustomHelperName = string;
+
+interface PrecompileOptions extends CompileOptions {
+  srcName?: string;
+  destName?: string;
+}
+
+declare namespace hbs {
+  // for backward compatibility of this typing
+  type SafeString = Handlebars.SafeString;
+
+  type Utils = typeof Handlebars.Utils;
+}
+
+interface Logger {
+  DEBUG: number;
+  INFO: number;
+  WARN: number;
+  ERROR: number;
+  level: number;
+
+  methodMap: { [level: number]: string };
+
+  log(level: number, obj: string): void;
+}
+
+type CompilerInfo = [number/* revision */, string /* versions */];
+
+declare namespace hbs {
+  namespace AST {
+      interface Node {
+          type: string;
+          loc: SourceLocation;
+      }
+
+      interface SourceLocation {
+          source: string;
+          start: Position;
+          end: Position;
+      }
+
+      interface Position {
+          line: number;
+          column: number;
+      }
+
+      interface Program extends Node {
+          body: Statement[];
+          blockParams: string[];
+      }
+
+      interface Statement extends Node {}
+
+      interface MustacheStatement extends Statement {
+          path: PathExpression | Literal;
+          params: Expression[];
+          hash: Hash;
+          escaped: boolean;
+          strip: StripFlags;
+      }
+
+      interface Decorator extends MustacheStatement { }
+
+      interface BlockStatement extends Statement {
+          path: PathExpression;
+          params: Expression[];
+          hash: Hash;
+          program: Program;
+          inverse: Program;
+          openStrip: StripFlags;
+          inverseStrip: StripFlags;
+          closeStrip: StripFlags;
+      }
+
+      interface DecoratorBlock extends BlockStatement { }
+
+      interface PartialStatement extends Statement {
+          name: PathExpression | SubExpression;
+          params: Expression[];
+          hash: Hash;
+          indent: string;
+          strip: StripFlags;
+      }
+
+      interface PartialBlockStatement extends Statement {
+          name: PathExpression | SubExpression;
+          params: Expression[];
+          hash: Hash;
+          program: Program;
+          openStrip: StripFlags;
+          closeStrip: StripFlags;
+      }
+
+      interface ContentStatement extends Statement {
+          value: string;
+          original: StripFlags;
+      }
+
+      interface CommentStatement extends Statement {
+          value: string;
+          strip: StripFlags;
+      }
+
+      interface Expression extends Node {}
+
+      interface SubExpression extends Expression {
+          path: PathExpression;
+          params: Expression[];
+          hash: Hash;
+      }
+
+      interface PathExpression extends Expression {
+          data: boolean;
+          depth: number;
+          parts: string[];
+          original: string;
+      }
+
+      interface Literal extends Expression {}
+      interface StringLiteral extends Literal {
+          value: string;
+          original: string;
+      }
+
+      interface BooleanLiteral extends Literal {
+          value: boolean;
+          original: boolean;
+      }
+
+      interface NumberLiteral extends Literal {
+          value: number;
+          original: number;
+      }
+
+      interface UndefinedLiteral extends Literal {}
+
+      interface NullLiteral extends Literal {}
+
+      interface Hash extends Node {
+          pairs: HashPair[];
+      }
+
+      interface HashPair extends Node {
+          key: string;
+          value: Expression;
+      }
+
+      interface StripFlags {
+          open: boolean;
+          close: boolean;
+      }
+
+      interface helpers {
+          helperExpression(node: Node): boolean;
+          scopeId(path: PathExpression): boolean;
+          simpleId(path: PathExpression): boolean;
+      }
+  }
+}
+
+declare module "handlebars" {
+  export = Handlebars;
+}
+
+declare module "handlebars/runtime" {
+  export = Handlebars;
+}
@@ -0,0 +1,109 @@
+/* These test cases were imported from https://github.com/DefinitelyTyped/DefinitelyTyped
+ * and includes previous contributions from the DefinitelyTyped community.
+ * For full history prior to their migration to handlebars.js, please see:
+ * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/handlebars-tests.ts
+ */
+
+import * as Handlebars from 'handlebars';
+
+const context = {
+  author: { firstName: 'Alan', lastName: 'Johnson' },
+  body: 'I Love Handlebars',
+  comments: [{
+    author: { firstName: 'Yehuda', lastName: 'Katz' },
+    body: 'Me too!'
+  }]
+};
+Handlebars.registerHelper('fullName', (person: typeof context.author) => {
+  return person.firstName + ' ' + person.lastName;
+});
+
+Handlebars.registerHelper('agree_button', function(this: any) {
+  return new Handlebars.SafeString(
+    '<button>I agree. I ' + this.emotion + ' ' + this.name + '</button>'
+  );
+});
+
+const source1 = '<p>Hello, my name is {{name}}. I am from {{hometown}}. I have ' +
+                '{{kids.length}} kids:</p>' +
+                '<ul>{{#kids}}<li>{{name}} is {{age}}</li>{{/kids}}</ul>';
+const template1 = Handlebars.compile(source1);
+template1({ name: "Alan", hometown: "Somewhere, TX", kids: [{name: "Jimmy", age: 12}, {name: "Sally", age: 4}]});
+
+Handlebars.registerHelper('link_to', (context: typeof post) => {
+  return '<a href="' + context.url + '">' + context.body + '</a>';
+});
+const post = { url: "/hello-world", body: "Hello World!" };
+const context2 = { posts: [post] };
+const source2 = '<ul>{{#posts}}<li>{{{link_to this}}}</li>{{/posts}}</ul>';
+const template2: HandlebarsTemplateDelegate<{ posts: { url: string, body: string }[] }> = Handlebars.compile(source2);
+template2(context2);
+
+Handlebars.registerHelper('link_to', (title: string, context: typeof post) => {
+  return '<a href="/posts' + context.url + '">' + title + '!</a>';
+});
+const context3 = { posts: [{url: '/hello-world', body: 'Hello World!'}] };
+const source3 = '<ul>{{#posts}}<li>{{{link_to "Post" this}}}</li>{{/posts}}</ul>';
+const template3 = Handlebars.compile<typeof context3>(source3);
+template3(context3);
+
+const source4 = '<ul>{{#people}}<li>{{#link}}{{name}}{{/link}}</li>{{/people}}</ul>';
+Handlebars.registerHelper('link', function(this: any, context: any) {
+  return '<a href="/people/' + this.id + '">' + context.fn(this) + '</a>';
+});
+const template4 = Handlebars.compile<{ people: { name: string, id: number }[] }>(source4);
+const data2 = { 'people': [
+    { 'name': 'Alan', 'id': 1 },
+    { 'name': 'Yehuda', 'id': 2 }
+]};
+template4(data2);
+
+const source5 = '<ul>{{#people}}<li>{{> link}}</li>{{/people}}</ul>';
+Handlebars.registerPartial('link', '<a href="/people/{{id}}">{{name}}</a>');
+const template5 = Handlebars.compile(source5);
+const data3 = { 'people': [
+    { 'name': 'Alan', 'id': 1 },
+    { 'name': 'Yehuda', 'id': 2 }
+]};
+template5(data3);
+
+const source6 = '{{#list nav}}<a href="{{url}}">{{title}}</a>{{/list}}';
+const template6 = Handlebars.compile(source6);
+Handlebars.registerHelper('list', (context, options: Handlebars.HelperOptions) => {
+  let ret = "<ul>";
+  for(let i=0, j=context.length; i<j; i++) {
+    ret = ret + "<li>" + options.fn(context[i]) + "</li>";
+  }
+  return ret + "</ul>";
+});
+template6([{url:"", title:""}]);
+
+
+const escapedExpression = Handlebars.Utils.escapeExpression('<script>alert(\'xss\');</script>');
+
+Handlebars.helpers !== undefined;
+
+const parsedTmpl = Handlebars.parse('<p>Hello, my name is {{name}}.</p>', {
+  srcName: "/foo/bar/baz.hbs",
+  ignoreStandalone: true
+});
+
+const parsedTmplWithoutOptions = Handlebars.parse('<p>Hello, my name is {{name}}.</p>');
+
+// Custom partial resolution.
+const originalResolvePartial = Handlebars.VM.resolvePartial;
+Handlebars.VM.resolvePartial = <T>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: Handlebars.ResolvePartialOptions): HandlebarsTemplateDelegate<T> => {
+  const name = options.name.replace(/my/,'your');
+  // transform name.
+  options.name = name;
+  return originalResolvePartial(partial, context, options);
+}
+
+
+// #1544, allow custom helpers in knownHelpers
+Handlebars.compile('test', {
+  knownHelpers: {
+    each: true,
+    customHelper: true
+  }
+});
@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": ["es6"],
+    "noImplicitAny": true,
+    "noImplicitThis": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "noEmit": true,
+
+    "baseUrl": ".",
+    "paths": {
+      "handlebars": ["."]
+    }
+  }
+}
@@ -0,0 +1,79 @@
+{
+  "extends": "dtslint/dtslint.json",
+  "rules": {
+    "adjacent-overload-signatures": false,
+    "array-type": false,
+    "arrow-return-shorthand": false,
+    "ban-types": false,
+    "callable-types": false,
+    "comment-format": false,
+    "dt-header": false,
+    "eofline": false,
+    "export-just-namespace": false,
+    "import-spacing": false,
+    "interface-name": false,
+    "interface-over-type-literal": false,
+    "jsdoc-format": false,
+    "max-line-length": false,
+    "member-access": false,
+    "new-parens": false,
+    "no-any-union": false,
+    "no-boolean-literal-compare": false,
+    "no-conditional-assignment": false,
+    "no-consecutive-blank-lines": false,
+    "no-construct": false,
+    "no-declare-current-package": false,
+    "no-duplicate-imports": false,
+    "no-duplicate-variable": false,
+    "no-empty-interface": false,
+    "no-for-in-array": false,
+    "no-inferrable-types": false,
+    "no-internal-module": false,
+    "no-irregular-whitespace": false,
+    "no-mergeable-namespace": false,
+    "no-misused-new": false,
+    "no-namespace": false,
+    "no-object-literal-type-assertion": false,
+    "no-padding": false,
+    "no-redundant-jsdoc": false,
+    "no-redundant-jsdoc-2": false,
+    "no-redundant-undefined": false,
+    "no-reference-import": false,
+    "no-relative-import-in-test": false,
+    "no-self-import": false,
+    "no-single-declare-module": false,
+    "no-string-throw": false,
+    "no-unnecessary-callback-wrapper": false,
+    "no-unnecessary-class": false,
+    "no-unnecessary-generics": false,
+    "no-unnecessary-qualifier": false,
+    "no-unnecessary-type-assertion": false,
+    "no-useless-files": false,
+    "no-var-keyword": false,
+    "no-var-requires": false,
+    "no-void-expression": false,
+    "no-trailing-whitespace": false,
+    "object-literal-key-quotes": false,
+    "object-literal-shorthand": false,
+    "one-line": false,
+    "one-variable-per-declaration": false,
+    "only-arrow-functions": false,
+    "prefer-conditional-expression": false,
+    "prefer-const": false,
+    "prefer-declare-function": false,
+    "prefer-for-of": false,
+    "prefer-method-signature": false,
+    "prefer-template": false,
+    "radix": false,
+    "semicolon": false,
+    "space-before-function-paren": false,
+    "space-within-parens": false,
+    "strict-export-declare-modifiers": false,
+    "trim-file": false,
+    "triple-equals": false,
+    "typedef-whitespace": false,
+    "unified-signatures": false,
+    "void-return": false,
+    "whitespace": false
+  }
+}