PHP

• PHP Editor (Code completion, syntactic and semantic code highlighting)
• Support for heredoc notation and PHTML
• Debugging using Xdebug
• Generators for MySQL database code snippets

JavaScript and Ajax

• JavaScript Debugging on FireFox & Internet Explorer
• HTTP transaction monitoring
• Improved JavaScript and CSS Editor
• JavaScript Library Manager incl Yahoo UI, Woodstock, jQuery, Dojo, Scriptaculous, Prototype libraries

Java EE & Web Development

• Enhanced support for Spring, Hibernate, JSF, JSF CRUD generator, JPA (Java Persistence API)
• Create RESTful web services from database tables or from JPA entities
• Drag and drop SaaS services into PHP files
• SQL Editor Improvements (code completion, save/recall queries, and more)
• Improved Eclipse project import and synchronization for Java Web projects
• Automatic Deploy on Save

JavaFX

• Create, test, debug, profile, and deploy JavaFX projects
• JavaFX editor with syntax highlighting, source navigation, code completion, code folding, javadoc pop-ups, and error detection.
• Live preview of visual elements
• Code snippet palette for transformations, effects and animations

Groovy and Grails

• Develop pure Groovy apps or use Groovy in Java SE projects
• Groovy editor with code completion, highlighting, and more
• Grails web application framework
• Open existing Grails applications without adding metadata

Ruby and Rails

• New Test Runner interface for displaying test results
• Rake improvements: Rake Runner and a pre-generated Rake file
• Debugger: Conditional breakpoints and catchpoints
• Ruby projects accept JVM options from command line

GlassFish v3 Prelude for Web Development

• Modular, OSGi based architecture
• Small footprint, fast startup and deployment
• Support for scripting, including JRuby

C/C++

• Improved code completion, error highlighting, and semantic highlighting
• Call graph, Memory window
• Remote development
• Packaging of application as tar files, zip files, or SVR4 packages

Java ME

• New project wizard for adding custom components to the Visual Designer Palette
• New SVG UI components in the enhanced SVG Composer enable rich UI design
• New Data Binding Custom Components in the Visual Designer Palette
• Upgraded obfuscation tool to ProGuard 4.2 and test framework to JMUnit 1.1.0

Java Debugger

• New multi-threaded debugging with improved UI and work-flow
• Smart Step Into with method selection right inside expression
• Deadlock detection with visual indication

Java SE

• Automatic Compile on Save
• Improved Eclipse project import and synchronization
• Java Call Hierarchy
• Analyze Javadoc
• Swing GUI Builder can generate simple or fully qualified class names

IDE Tools and Usability

• CamelCase code completion
• Customize formatting settings per project
• One IDE-wide QuickSearch shortcut for files/symbols/types, IDE actions, options, and docs
• Support for Windows UNC paths (shared network folders)