IntelliJ IDEA 10.5: Full Java 7 Support and IDE Enhancements
Full Java 7 Support
Complete support for Java 7 SDK in all IDE featuresEven Faster
More IDE performance and startup optimizationMore Pleasant to Use
Usability & UI improvements for certain common tasksPace with the Times
Something new for Groovy, Android, Spring, Flex, and moreJava 7 Ready!
All the new Java language features are fully supported across the IDE, with code completion, inspections, quick-fixes, etc.

Faster and Easier Introduce Refactorings
Introduce Parameter/Field/Constant refactorings now work in-place, with an instant changes preview and no additional dialogs.

Reworked Search/Replace
A more convenient, non-modal Replace UI introduced with an instant preview for regular expression replace.

Easier to Use Completion Techniques
Don't bother pressing Shift anymore: the improved code completion will understand you perfectly and quickly provide the matches you need.

JavaScript Debugger in Google Chrome Ultimate only
The Debugger for Chrome supports all features of the JavaScript debugger for Firefox: breakpoints, inspecting local variables, evaluating expressions, etc.
Directory Comparison & DB Diff
New Diff Tools added for comparing local directories and database objects (Tables, Data Sources, Schemes).

More Comfort with Version Control
- TODO items verification on VCS commit.
- Import patches into IntelliJ IDEA shelf.
- Misc. improvements for all supported SCMs.
Android Development
The latest versions of Android SDK are supported, including Honeycomb. Also, specific improvements for easier project configuration and debugging on a device.
Flex/ActionScript Support Ultimate only
- Move inner ActionScipt class to Package refactoring.
- Introduce variable/field refactorings improvements.
- Full cycle of Mobile AIR applications development support.
Groovy
- Groovy 1.8 support.
- Introduce Field and Introduce Parameter refactorings.
- 'Create Test' intention action.
- Quick 'Go to Test' navigation.

Updated Ruby, Python, Scala and PHP Plugins
Updated versions of IDE plugins provide new advanced features for Ruby on Rails, PHP, Python/Django and Scala developers.
Spring Ultimate only
Ensured compatibility with the latest Spring 3.1 framework:
- "c-namespace" facility support.
- Environment profiles for application contexts.
- Spring Integration Framework support.
- And other improvements.

Spring Roo Console Ultimate only
Integrated Spring Roo console added to ease the development of Spring Roo applications.

New Tools and Frameworks Integrations
- Jetty integration Ultimate only
- XSLT2 support
