All in all, there were over 860 issues treated in the issue tracker: http://code.google.com/p/pharo/issues/list?can=1&q=milestone%3D1.4 Not all the changes are reported here, but this is to give you an impression. Thanks a lot for your participation. We all accomplished a huge task.

Changes

• New code model: Ring
• Support for startUp preference script
• #class message is not a byte code anymore
• Better union and intersection methods
• Better primitive simulation
• Better headless support
• Better support for error at startup
• Introduction of FileSystem?
• Less dependencies: Color, Scrollbar do not depend on Compiler anymore
• Cleaning tests
• Unload hostSystemsMenus
• More consistent API for browser opening
• No event pulling anymore
• More class comments
• Announcement driven system notification
• Better API for sharedPool

Zinc Improvement

• New mechanism for Zinc servers start/stop handling after system startUp/shutDown
• and a lot a lot and a lot more.

Tools

• Support Cherrypicking when merging
• Better timeProfilerBrowser
• Better MC commit error
• MC handles better dependencies
• Better Debugger
• Better Inspector
• Search in tools
• New Finder tool
• Cmd-Click for senders and implementors
• Senders and implementors deals with class
• Better tool registry
• Improvements for the FlatBrowser?
• Better Transcripter
• Faster diffBuilder
• New version of OCompletion and Ecompletion that can play together and without code duplication.
•  

UI

• Better search
• MultiSelection? improvements
• Drag and drop in multi selection list
• PluggableListMorph? improvements
• PluggableListMorph? selection on drag
• Iconic Button improvements
• PharoTheme?
• Better CheckBox?
• Enhanced PluggableButtonMorph?
• Polymorph enhancements
• Deprecate PluggableListMorphOfMany?
• Merged NewParagraph? and MultiNewParagraph?
• New Widget: Ticking list and widget
• LazyListMorph? cleaning
• NewTextMorph? and TextComposer? improvements
• Improve behavior of MorphTreeMorph?
• Removing NewTextMorph? and related
• StringMorph?

Cleaning

• Object
• Old HTTP code
• No references to Utilities
• Removed toolbuilder
• Restructure packages
• Canvas hierarchy
• MorphicModel?
• Deprecate recentMessageSet
• Deprecate ImageSegment?
• Deprecate MessageNames?
• Deprecate TimeProfileBrowser?
• Really cleaning messageSet and subclasses
• SystemChangeNotifier?
• Removed Project
• Removed BlockContext?, blue book old closure encodings
• Font downloading
• HandMorph?

Some Fixes

• Set growth with nil
• Better weak finalization
• isPrime fixed
• Compiler Fixes
• Russian characters in editor
• More class comments
• Fix drawing shadow morphs
• Trait support
• Fixed syntax hilighting
• Better pointersTo:
• Speedup MethodDictionary? #rehash
• Compiler enhancements.
• Stream should not print its contents
• Progress bar
• InputSensor?
• CombinedChar?
• BytexTextConverter? fixes