[4.0.0 Release] One week to the branch

This is just a quick reminder that branching for the upcoming release
is scheduled for one week from now, 12 January 2017. Please try to
avoid disruptive changes right before the branch.

The full schedule was posted in a previous email [1] and also under
"Upcoming Releases" on http://llvm.org/

Note that when the branch happens, the trunk version will become 5.0.0
as per the new versioning scheme [2].


[1] http://lists.llvm.org/pipermail/llvm-dev/2016-December/107805.html
[2] http://blog.llvm.org/2016/12/llvms-new-versioning-scheme.html

Can someone look at my devirtualization patch? It would be really great if clang-4.0 would have it.