The project has recently moved to Sphinx, and the transition was only completed after branching for 3.2. It looks like the release notes have gotten out of sync and need to be merged, which is a little more work than usual. The link from the homepage points to docs that are always generated from trunk, so it only has old, incomplete notes.
LLVM, http://llvm.org/releases/3.2/docs/ReleaseNotes.html
Clang: http://llvm.org/releases/3.2/docs/ClangReleaseNotes.html
The project has recently moved to Sphinx, and the transition was only completed after branching for 3.2. It looks like the release notes have gotten out of sync and need to be merged, which is a little more work than usual. The link from the homepage points to docs that are always generated from trunk, so it only has old, incomplete notes.