LLVM is distributed under the University of Illinois Open Source License, an OSI-approved license.

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• Always - Anonymous SVN access; release notes.
• 11 Feb 2008 - 2.2 release download; release notes.
• 26 Sep 2007 - 2.1 release download; release notes.
• 23 May 2007 - 2.0 release download; release notes.
• 19 Nov 2006 - 1.9 release download; release notes.
• 9 Aug 2006 - 1.8 release download; release notes.
• 20 Apr 2006 - 1.7 release download; release notes.
• 08 Nov 2005 - 1.6 release download; release notes.
• 18 May 2005 - 1.5 release download; release notes.
• 09 Dec 2004 - 1.4 release download; release notes.
• 13 Aug 2004 - 1.3 release download; release notes.
• 19 Mar 2004 - 1.2 release download; release notes.
• 17 Dec 2003 - 1.1 release download; release notes.
• 24 Oct 2003 - 1.0 release download; release notes.

LLVM provides extensive documentation in HTML form, which is available in the source download and online:

• Current LLVM SVN HEAD documentation
• Documentation for LLVM 2.2
• Documentation for LLVM 2.1
• Documentation for LLVM 2.0
• Documentation for LLVM 1.9
• Documentation for LLVM 1.8
• Documentation for LLVM 1.7
• Documentation for LLVM 1.6
• Documentation for LLVM 1.5
• Documentation for LLVM 1.4
• Documentation for LLVM 1.3
• Documentation for LLVM 1.2
• Documentation for LLVM 1.1
• Documentation for LLVM 1.0