The second release candidate of HP 2012.4.0.0 is now available:

Source tarball: haskell-platform-2012.4.0.0-rc2.tar.gz
Mac 32-bit installer: Haskell Platform 2012.4.0.0 32bit rc2 signed.pkg
Mac 64-bit installer: Haskell Platform 2012.4.0.0 64bit rc2 signed.pkg
Windows installer: HaskellPlatform-2012.4.0.0-rc1-setup.exe

Tickets closed for this release: http://trac.haskell.org/haskell-platform/query?status=closed&group=component&milestone=2012.4.0.0

If you can, please test the release candidate and let us know how it works out.

We are on track for final release on November 5th.

- Mark