LLVM 3.1 was supposed to be released on 14 May, last week Monday, but the release didn't happen. The current official version for LLVM and friends (Clang, DragonEgg, etc) on the LLVM web-site is version 3.0 from last December. However, there is now a bold marking of "LLVM 3.2 Release To Be Announced" under upcoming releases.
Brought up on the mailing list 24 hours ago was a new mail thread: "LLVM 3.1 Release schedule delay?" With people being surprised by such a delay and no communication from the core LLVM developers.
As of the time of publishing, there still is no official word on the delay. However, I do suspect that it will still be released in the coming days. While waiting for the LLVM 3.1 release to happen, you can read some of the already present Phoronix LLVM 3.1 coverage:
- Apple's LLVM 3.1 Clanging On Intel Sandy Bridge
- AMD's FX-8150 Bulldozer Benefits From New Compilers, Tuning
- FreeBSD 10 To Use Clang Compiler, Deprecate GCC
- LLVM's Clang 3.1 Compiler Betters C11, C++11
- LLVM 3.1 Branched For May Feature Release (A Feature List)
- Compilers Mature For Intel Sandy/Ivy Bridge, Prep For Haswell