Qt Creator version 2.4 contains bug fixes and new features.

The most important changes are listed in this document. For a complete
list of changes, see the Git log for the Qt Creator sources that
you can check out from the public Git repository. For example:

git clone git://gitorious.org/qt-creator/qt-creator.git
git log --cherry-pick --pretty=oneline v2.3.1...origin/2.4

General
   * Showing more useful error dialog in case of plugin errors
   * Reduce minimum size of preferences dialog

Editing
   * Advanced search: Show more information about the search parameters
   * Advanced search: Move the previously modal dialog into search results pane
   * Advanced search: Keep a history of most recent searches and their results
   * Code Style schemas implemented, you can reuse them in different projects now

Managing Projects
   * Shared project settings support
   * New templates for non-Qt C and C++ applications

Debugging
   * Initial Qt 5 support in dumpers
   * Make vtables visible
   * Improved remote debugging
   * Improved register handling (partial updates, input in hex, ARM Neon support)
   * Remove inferior calls in QDate, QTime, QDateTime dumpers
   * Fix QTextCodec dumpers
   * Globally enable pretty printing for references
   * Saner handling of unprintable data in Locals and Expressions
   * Add "Local8Bit" as display option for char arrays and pointers

Debugging QML/JS
   * New option to attach to a running application
   * Lots of bug fixes especially for debugging in combination with C++
   * Initial support for debugging JS in Qt 5 (v8 engine)

Analyzing Code
   * Standalone qmlprofiler command line tool allows you to retrieve & store QML tracing data
   * Ability to store and load traces in a file
   * New option to attach to a running application

C++ Support
   * Add quick fix to synchronize function declarations and definitions
   * Make 'insert definition from declaration' use minimally qualified names
     and find a good insertion location next to surrounding declarations
   * Fix completion for typedefs for templates in namespaces
   * Use minimally qualified names in function signature completion
   * Use minimally qualified names in 'insert local declaration' quick fix
   * When switching between header/source, prefer files in the same directory
   * Fix problem with encoding and quick fixes (QTCREATORBUG-6140)
   * Fix preservation of indentation level in comments with tabs (QTCREATORBUG-6151)
   * Improve performance for files with a huge number of literals

QML/JS Support
   * Add 'Rename usages' functionality (QTCREATORBUG-3669)
   * Add collection of static analysis messages with Ctrl-Shift-C
   * Add semantic highlighting
   * Significantly improve scanning of C++ documents for qmlRegisterType and
     setContextProperty calls (QTCREATORBUG-3199)
   * Add warning about inappropriate use of constructor functions
   * Add warning about unreachable code
   * Add support for .import directive in js files
   * Add completion for XMLHttpRequest, DB API and JSON.
   * Add 'length' property to functions
   * Use mime types to distinguish qml and js files
   * Show the function argument hint for signals
   * When completing enums, add qualified names instead of strings
   * Honor typeinfo lines in qmldir files
   * Make string literals that contain file names into links (QTCREATORBUG-5701)
   * Add warning about invalid types in 'property' declarations (QTCREATORBUG-3666)
   * Fix highlighting of property types (QTCREATORBUG-6127)
   * Fix 'follow symbol' for local variables (QTCREATORBUG-6094)
   * Fix function argument hints on variables (QTCREATORBUG-5752)
   * Fix completion for enums in a different scope
   * Fix typing '/' triggering a global completion
   * Fix handling of meta object revision in C++ QML plugins
   * Fix indentation of block property initializers
   * Fix indentation of labelled statements
   * Fix scope for completion in code bindings
   * Allow for different builtin type information per Qt version
   * Update builtin type information and parser for Qt 5
   * Use qmlscene for previewing files in Qt 5

Qt Quick Designer
   * Adding breadcrumb navigation for components
   * Adding layout functionality to context menu.

Help

Platform Specific

Mac
   * "Run in Terminal" was not finding xterm by default

Linux (GNOME and KDE)

Windows
   * Aborting the build now works properly. Qt Creator sends Ctrl-C to the
     build process via the process_ctrlc_stub helper program.

Symbian Target

Remote Linux Support
   * Move Maemo/MeeGo support into its own plugin.
   * Assume less about the target systems, e.g. in respect to the presence of
     POSIX-conforming tools.

Qt Designer

FakeVim
   * Add basic command editing in Ex mode
   * Mention "comma escape" in Documentation
   * Fix foreground color for search matches in Dark scheme
   * Fix toggling visual mode with "v"

Version control plugins
   * SVN: Support for SVN version 1.7
   * Git: New option to toggle decoration settings for log and show commands


Additional credits go to:
   * Benito van der Zander (code model)
   * Christoph Mathys (debugger)
   * Hugues Delorme (version control refactoring, bazaar)
   * Jonathan Liu (SVN 1.7 support)
   * Nicolas Arnaud-Cormos (quick fixes)
   * Orgad Shaneh (git, debugger, other places)
   * Peter Kuemmel (bug fixes)
   * Thorbjørn Lindeijer (code model)
   * Vlad Brovko (improve symlink support)
   * Yuchen Deng (bug fixes, project wizards)