Mac OS X 10.6.4, Safari 5 and Xcode 4 Coming at WWDC

Mac Generation reports that Safari 5 and Mac OS X 10.6.4 will be announced at WWDC. According to the published release notes for Safari 5, the update will include:

- Safari Reader: view articles on the web on a single, clutter-free page
- Improved performance. 25% faster Javascript, Better caching and DNS pre-fetching
- Bing Search Option
- Improved HTML 5 support
- Safari Developer Tools
- Smart Address field
- Tab settings
- Hardware acceleration for Windows

Meanwhile, MacRumors has heard that a major update to Xcode (version 4) is in the works and will also be demonstrated at WWDC.