Issue #14664: It is now possible to use @unittest.skip{If,Unless} on a test class that doesn't inherit from TestCase (i.e. a mixin).

Issue #14632: Updated WatchedFileHandler to deal with race condition. Thanks to John Mulligan for the problem report and patch.

when the links were not located in an archive subdirectory.

This also alters the fix to #11603. Specifically, setting __repr__ to
object.__str__ now raises a recursion RuntimeError when str() or repr() is
called instead of silently bypassing the recursion. I believe this behavior is
more correct.

Patch by Dionysios Kalofonos.

Original patch by Peter Otten.

if the first two lines have non-UTF-8 characters without an encoding declaration.

Issue #14308: Fix an exception when a "dummy" thread is in the threading module's active list after a fork().

chown() to root under certain circumstances.

Issue #14589: Update certificate chain for sha256.tbs-internet.com, fixing a test failure in test_ssl.

Issue #13889: On MSVC builds, set FPU control word at runtime for all string <-> float conversions.  Patch by Samuel Iseli and Stefan Krah.

_socket does.  Some were using the older wsock32.lib.