2020.04.15 Version 1.4.10
* added workaround for chrome bug causing memory leak after calling editor.destroy
* added code folding support for vbscript mode

2020.04.01 Version 1.4.9
* added option to disable autoindent 
* added new language modes
* fixed backspace not working with some mobile keyboards

2020.01.14 Version 1.4.8
* highlight both matched braces, and highlight unmatched brace in red
* improve snippet manager
* compatibility with webpack file-loader v5
* improve vim mode

2019.10.17 Version 1.4.7
* add placeholder option

2019.09.08 Version 1.4.6
* restore native behavior of ctrl-p on mac (jumptomatching command is moved to cmd-\)
* improve snippet manager
* fix backspace handling on mobile

2019.06.17 Version 1.4.5
* improve scrolling and selection on mobile 
* improve type definitions

2019.04.24 Version 1.4.4
* add experimental command prompt
* add chrystal, nim and nginx highlight rules
* fix regression in vim mode on ios

2019.02.21 Version 1.4.3
* add sublime keybindings
* add rtl option
* implement ` and < textobjects in vim mode

2018.11.21 Version 1.4.2
* fix regression in vim mode
* improve keyboard input handling on ipad and IE
* add new syntax highlighters

2018.08.07 Version 1.4.1
* fix regression in autocomplete

2018.08.06 Version 1.4.0

* remove usage of innerHTML
* improved handling of textinput for IME and mobile
* add support for relative line numbers
* improve autocompletion popup 

2018.03.26 Version 1.3.3
* fix regession in static-highlight extension
* use css animation for cursor blinking

2018.03.21 Version 1.3.2
* add experimental support for using ace-builds with webpack

2018.02.11 Version 1.3.1

* fixed regression with selectionChange event not firing some times
* improved handling of non-ascii characters in vim normal mode

2018.01.31 Version 1.3.0

* added copy copyWithEmptySelection option 
* improved undoManager
* improved settings_menu plugin
* improved handling of files with very long lines
* fixed bug with scrolling editor out of view in transformed elements

2017.10.17 Version 1.2.9

* added support for bidirectional text, with monospace font (Alex Shensis)
* added support for emoji 😊

* new language modes
  - Red (Toomas Vooglaid)
  - CSound (Nathan Whetsell)
  - JSSM (John Haugeland)

* New Themes
  - Dracula (Austin Schwartz)

2017.07.02 Version 1.2.8
* Fixed small bugs in searchbox and autocompleter

2017.06.18 Version 1.2.7

* Added Support for arrow keys on external IPad keyboard (Emanuele Tamponi)
* added match counter to searchbox extension

- implemented higlighting of multiline strings in yaml mode (Maxim Trushin)
- improved haml syntax highlighter (Andrés Álvarez)

2016.12.03 Version 1.2.6

* Fixed IME handling on new Chrome
* Support for php 7 in the syntax checker

2016.08.16 Version 1.2.5

* Fixed regression in noconflict mode

2016.07.27 Version 1.2.4

* Maintenance release with several new modes and small bugfixes

2016.01.17 Version 1.2.3

* Bugfixes
  - fix memory leak in setSession (Tyler Stalder)
  - double click not working on linux/mac
  
* new language modes
  - reStructuredText (Robin Jarry)
  - NSIS (Jan T. Sott)


2015.10.28 Version 1.2.1

* new language modes
  - Swift
  - JSX

2015.07.11 Version 1.2.0

* New Features
  - Indented soft wrap (danyaPostfactum)
  - Rounded borders on selections

* API Changes
  - unified delta types `{start, end, action, lines}`  (Alden Daniels https://github.com/ajaxorg/ace/pull/1745)
  - "change" event listeners on session and editor get delta objects directly

* new language modes
  - SQLServer (Morgan Yarbrough)
  
2015.04.03 Version 1.1.9

  - Small Enhancements and Bugfixes

2014.11.08 Version 1.1.8

* API Changes
  - `editor.commands.commandKeyBinding` now contains direct map from keys to commands instead of grouping them by hashid
  
* New Features
  - Improved autoindent for html and php modes (Adam Jimenez)
  - Find All from searchbox (Colton Voege)
  
* new language modes
  - Elixir, Elm
 
2014.09.21 Version 1.1.7

* Bugfixes
  - fix several bugs in autocompletion
  - workaround for inaccurate getBoundingClientRect on chrome 37

2014.08.17 Version 1.1.6

* Bugfixes
  - fix regression in double tap to highlight 
  - Improved Latex Mode (Daniel Felder)
  
* API Changes
  - editor.destroy destroys editor.session too (call editor.setSession(null) to prevent that)

* new language modes
 - Praat (José Joaquín Atria)
 - Eiffel (Victorien Elvinger)
 - G-code (Adam Joseph Cook)
 
2014.07.09 Version 1.1.5

* Bugfixes
  - fix regression in autocomplete popup

* new language modes
 - gitignore (Devon Carew)
 
2014.07.01 Version 1.1.4

* New Features
  - Highlight matching tags (Adam Jimenez)
  - Improved jump to matching command (Adam Jimenez)

* new language modes
 - AppleScript (Yaogang Lian)
 - Vala

2014.03.08 Version 1.1.3

* New Features
  - Allow syntax checkers to be loaded from CDN (Derk-Jan Hartman)
  - Add ColdFusion behavior (Abram Adams)
  - add showLineNumbers option
  - Add html syntax checker (danyaPostfactum)
 
* new language modes
  - Gherkin (Patrick Nevels)
  - Smarty

2013.12.02 Version 1.1.2

* New Features
  - Accessibility Theme for Ace (Peter Xiao)
  - use snipetManager for expanding emmet snippets
  - update jshint to 2.1.4
  - improve php syntax checker (jdalegonzalez)
  - add option for autoresizing
  - add option for autohiding vertical scrollbar
  - improvements to highlighting of xml like languages (danyaPostfactum)
  - add support for autocompletion and snippets (gjtorikyan danyaPostfactum and others)
  - add option to merge similar changes in undo history
  - add scrollPastEnd option
  - use html5 dragndrop for text dragging (danyaPostfactum)
  
* API Changes
  - fixed typo in HashHandler commmandManager

* new language modes
  - Nix (Zef Hemel)
  - Protobuf (Zef Hemel)
  - Soy
  - Handlebars

2013.06.04 Version 1.1.1

  - Improved emacs keybindings (Robert Krahn)
  - Added markClean, isClean methods to UndoManager (Joonsoo Jeon)
  - Do not allow `Toggle comments` command to remove spaces from indentation
  - Softer colors for indent guides in dark themes

* new language modes
  - Ada
  - Assembly_x86
  - Cobol
  - D
  - ejs
  - MATLAB
  - MySQL
  - Twig
  - Verilog

2013.05.01, Version 1.1.0

* API Changes
  - Default position of the editor container is changed to relative. Add `.ace_editor {position: absolute}` css rule to restore old behavior
  - Changed default line-height to `normal` to not conflict with bootstrap. Use `line-height: inherit` for old behavior.
  - Changed marker types accepted by session.addMarker. It now accepts "text"|"line"|"fullLine"|"screenLine"
  - Internal classnames used by editor were made more consistent
  - Introduced `editor.setOption/getOption/setOptions/getOptions` methods
  - Introduced positionToIndex, indexToPosition methods

* New Features
  - Improved emacs mode (chetstone)
    with Incremental search and Occur modes (Robert Krahn)

  - Improved ime handling
  - Searchbox (Vlad Zinculescu)

  - Added elastic tabstops lite extension (Garen Torikian)
  - Added extension for whitespace manipulation
  - Added extension for enabling spellchecking from contextmenu
  - Added extension for displaying available keyboard shortcuts (Matthew Christopher Kastor-Inare III)
  - Added extension for displaying options panel (Matthew Christopher Kastor-Inare III)
  - Added modelist extension (Matthew Christopher Kastor-Inare III)

  - Improved toggleCommentLines and added ToggleCommentBlock command
  - `:;` pairing in CSS mode (danyaPostfactum)

  - Added suppoert for Delete and SelectAll from context menu (danyaPostfactum)

  - Make wrapping behavior optional
  - Selective bracket insertion/skipping 
    
  - Added commands for increase/decrease numbers, sort lines (Vlad Zinculescu)    
  - Folding for Markdown, Lua, LaTeX    
  - Selective bracket insertion/skipping for C-like languages

* Many new languages
  - Scheme (Mu Lei)
  - Dot (edwardsp)
  - FreeMarker (nguillaumin)
  - Tiny Mushcode (h3rb)
  - Velocity (Ryan Griffith)
  - TOML (Garen Torikian) 
  - LSL (Nemurimasu Neiro, Builders Brewery)
  - Curly (Libo Cannici)
  - vbScript (Jan Jongboom) 
  - R (RStudio) 
  - ABAP
  - Lucene (Graham Scott)
  - Haml (Garen Torikian)
  - Objective-C (Garen Torikian) 
  - Makefile (Garen Torikian) 
  - TypeScript (Garen Torikian) 
  - Lisp (Garen Torikian) 
  - Stylus (Garen Torikian) 
  - Dart (Garen Torikian)

* Live syntax checks
  - PHP (danyaPostfactum)
  - Lua

* New Themes
  - Chaos 
  - Terminal 
   
2012.09.17, Version 1.0.0

* New Features
  - Multiple cursors and selections (https://c9.io/site/blog/2012/08/be-an-armenian-warrior-with-block-selection-on-steroids/)
  - Fold buttons displayed in the gutter
  - Indent Guides
  - Completely reworked vim mode (Sergi Mansilla)
  - Improved emacs keybindings
  - Autoclosing of html tags (danyaPostfactum)

* 20 New language modes
  - Coldfusion (Russ)
  - Diff
  - GLSL (Ed Mackey)
  - Go (Davide Saurino)
  - Haxe (Jason O'Neil)
  - Jade (Garen Torikian)
  - jsx (Syu Kato)
  - LaTeX (James Allen)
  - Less (John Roepke)
  - Liquid (Bernie Telles)
  - Lua (Lee Gao)
  - LuaPage (Choonster)
  - Markdown (Chris Spencer)
  - PostgreSQL (John DeSoi)
  - Powershell (John Kane)
  - Sh (Richo Healey)
  - SQL (Jonathan Camile)
  - Tcl (Cristoph Hochreiner)
  - XQuery (William Candillion)
  - Yaml (Meg Sharkey)

  * Live syntax checks
  - for XQuery and JSON

* New Themes
  - Ambiance (Irakli Gozalishvili)
  - Dreamweaver (Adam Jimenez)
  - Github (bootstraponline)
  - Tommorrow themes (https://github.com/chriskempson/tomorrow-theme)
  - XCode

* Many Small Enhancements and Bugfixes
 
2011.08.02, Version 0.2.0

* Split view (Julian Viereck)
  - split editor area horizontally or vertivally to show two files at the same
    time

* Code Folding (Julian Viereck)
  - Unstructured code folding
  - Will be the basis for language aware folding

* Mode behaviours (Chris Spencer)
  - Adds mode specific hooks which allow transformations of entered text
  - Autoclosing of braces, paranthesis and quotation marks in C style modes
  - Autoclosing of angular brackets in XML style modes

* New language modes
  - Clojure (Carin Meier)
  - C# (Rob Conery)
  - Groovy (Ben Tilford)
  - Scala (Ben Tilford)
  - JSON
  - OCaml (Sergi Mansilla)
  - Perl (Panagiotis Astithas)
  - SCSS/SASS (Andreas Madsen)
  - SVG
  - Textile (Kelley van Evert)
  - SCAD (Jacob Hansson)
  
* Live syntax checks
  - Lint for CSS using CSS Lint <http://csslint.net/>
  - CoffeeScript

* New Themes
  - Crimson Editor (iebuggy)
  - Merbivore (Michael Schwartz)
  - Merbivore soft (Michael Schwartz)
  - Solarized dark/light <http://ethanschoonover.com/solarized> (David Alan Hjelle)
  - Vibrant Ink (Michael Schwartz)

* Small Features/Enhancements
  - Lots of render performance optimizations (Harutyun Amirjanyan)
  - Improved Ruby highlighting (Chris Wanstrath, Trent Ogren)
  - Improved PHP highlighting (Thomas Hruska)
  - Improved CSS highlighting (Sean Kellogg)
  - Clicks which cause the editor to be focused don't reset the selection
  - Make padding text layer specific so that print margin and active line
    highlight are not affected (Irakli Gozalishvili)
  - Added setFontSize method
  - Improved vi keybindings (Trent Ogren)
  - When unfocused make cursor transparent instead of removing it (Harutyun Amirjanyan)
  - Support for matching groups in tokenizer with arrays of tokens (Chris Spencer)

* Bug fixes
  - Add support for the new OSX scroll bars
  - Properly highlight JavaScript regexp literals
  - Proper handling of unicode characters in JavaScript identifiers
  - Fix remove lines command on last line (Harutyun Amirjanyan)
  - Fix scroll wheel sluggishness in Safari
  - Make keyboard infrastructure route keys like []^$ the right way (Julian Viereck)

2011.02.14, Version 0.1.6

* Floating Anchors
  - An Anchor is a floating pointer in the document. 
  - Whenever text is inserted or deleted before the cursor, the position of
    the cursor is updated
  - Usesd for the cursor and selection
  - Basis for bookmarks, multiple cursors and snippets in the future
* Extensive support for Cocoa style keybindings on the Mac <https://github.com/ajaxorg/ace/issues/closed#issue/116/comment/767803>
* New commands:
  - center selection in viewport
  - remove to end/start of line
  - split line
  - transpose letters
* Refator markers  
  - Custom code can be used to render markers
  - Markers can be in front or behind the text
  - Markers are now stored in the session (was in the renderer)
* Lots of IE8 fixes including copy, cut and selections
* Unit tests can also be run in the browser
  <https://github.com/ajaxorg/ace/blob/master/lib/ace/test/tests.html>
* Soft wrap can adapt to the width of the editor (Mike Ratcliffe, Joe Cheng)
* Add minimal node server server.js to run the Ace demo in Chrome
* The top level editor.html demo has been renamed to index.html
* Bug fixes
  - Fixed gotoLine to consider wrapped lines when calculating where to scroll to (James Allen)
  - Fixed isues when the editor was scrolled in the web page (Eric Allam)
  - Highlighting of Python string literals
  - Syntax rule for PHP comments

2011.02.08, Version 0.1.5

* Add Coffeescript Mode (Satoshi Murakami)
* Fix word wrap bug (Julian Viereck)
* Fix packaged version of the Eclipse mode
* Loading of workers is more robust
* Fix "click selection"
* Allow tokizing empty lines (Daniel Krech)
* Make PageUp/Down behavior more consistent with native OS (Joe Cheng)

2011.02.04, Version 0.1.4

* Add C/C++ mode contributed by Gastón Kleiman
* Fix exception in key input

2011.02.04, Version 0.1.3

* Let the packaged version play nice with requireJS
* Add Ruby mode contributed by Shlomo Zalman Heigh
* Add Java mode contributed by Tom Tasche
* Fix annotation bug
* Changing a document added a new empty line at the end