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。

相关链接：

• Download NetBeans IDE 7.3 Beta
• Watch New NetBeans IDE 7.3 Screencasts
• Release Notes
• Installation Guide

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。