+* With this release, the minimum Windows version required for running LLVM is
+ Windows 7. Earlier versions, including Windows Vista and XP are no longer
+ supported.
+
+* With this release, the autoconf build system is deprecated. It will be removed
+ in the 3.9 release. Please migrate to using CMake. For more information see:
+ `Building LLVM with CMake <CMake.html>`_