Apple has released Xcode 4.0.1 today. It's largely a bug fix release. Specific changes include:
Improved Assistant editor logic when switching among different file types
Fixed a bug in "Install Xcode.app" that hangs at 99% complete, never finishing
Fixed a bug that prevented indexing of some projects
Fixed a bug related to nil settings in the Core Data model editor
Fixed a bug that prevented automatic download of iOS documentation
Fixed a bug in LLVM GCC 4.2 and LLVM compiler 2.0 for iOS projects
Additional bug fixes and stability improvements
You can grab your copy via the Mac App Store or
