NetBeans IDE 7.3 Beta 大大增强了开发者使用 HTML5、JavaScript 和 CSS 创建和调试富 Web 和移动应用的功能，开发者可通过全新的页面检查、CSS 样式编辑器和全新的 JavaScript 编辑器、调试器等等工具来提升开发效率；另外该版本继续改进对 Groovy, PHP, JavaFX and C/C++ 语言的支持。
值得关注的改进内容：
Project Easel: HTML5 Application Development
HTML5 Application project with JavaScript testing support
JavaScript Editor significantly improved
Page inspector and visual CSS style editor
JavaScript Debugger
Embedded WebKit browser; deep integration with Chrome
Java
Breadcrumbs: A new navigation bar shows the current embedding in the editor
Updated Show member and Show hierarchy views
Set of new hints and refactorings
Filters for Find Usages results
Effective POM editor tab in pom.xml editor
Java EE
Java Persistence JPQL testing tool
REST Service Development enhancements
JavaFX
FXML/Scene Builder Support
JDK 7u6+ support on Windows, Mac and Linux
FXML editing greatly improved by providing accurate code completion, error marking and more
FXML Generate Controller action added on FXML files
PHP
Parsers for Namespaced Annotations (Symfony 2, Doctrine 2, etc.)
Basic Composer Integration (Dependency Manager for PHP)
Twig Code Completion (with documentation)
Smarty Braces Matching for Related Tags
Smarty Parser Errors of Unmatched Tags
Groovy
Groovy 2.0 integration
Support in Java EE projects
Groovy JUnit test support
Basic refactoring implemented (Find Usages, Rename for class type)
Profiler
Sampled memory profiling
CPU snapshots comparison
Support for Linux ARM machine
C/C++
Memory usage reduced by at least half for big projects
Parser speed improvements
Parser's index can be kept and relocated with project
NetBeans Platform
Options dialog contents filtering
New File / Open Recent File menu, and a new shortcut CTRL+ALT+T
Main toolbar shows new drop down list for overflow situations
NetBeans IDE 7.3 Beta 提供包括简体中文在内的多种语言版本，完整的改进记录请看 7.3 New and Noteworthy page
而正式版将于 2013 年初发布。
下载：http://download.netbeans.org/netbeans/7.3/beta/
来自:开源中国社区
