IntelliJ IDEA 5.1 发布了。
新版本，主要做了以下提升：更好的支持i18n，更好地支持插件开发，提升对JS和AJAX的支持, 开发了新的jsp debug模块等等。
官方提到：
Enhanced i18n support
New intention actions and quick fixes for internationalizing strings, excluding string literals from internationalization, formatting properties and messages, together with auto-detection of resource bundles, smart editing of .properties files and other features appeared in 5.0 release, help developers to quickly localize applications keeping resources in a consistent state.
Improved JavaScript and Web Development support
Version 5.1 introduces a number of important improvements to JavaScript support, equipping both experienced developers and "newbies" with a full arsenal of features. All these improvements will help you with AJAX development as well (especially when developing AJAX libraries). Other new enhancements include new navigation, completions and refactorings, plus new Find Usages capabilities for JavaScript and (X)HTML.
New JSP debugging support
Now IntelliJ IDEA allows for configuration of source-level JSP debugging when remotely connected to IBM WebSphere 5.1 or later.
More support for plug-in developers
New actions for auto-creating new application, module, and project components, together with new inspections for validating the consistency of plug-in descriptors, make it easier than ever to begin creating custom plug-ins.
因为更好的支持了i18n,JetBrains 开发了IntelliJ IDEA 5.1的Japanese localization。5.0的用户也可以免费升级。
下载免费试用版：http://www.jetbrains.com/idea/download/
