NET Framework 4.6 and above, for Windows Server 2008 SP2, Windows Server 2008 R2 SP1, and Windows 7SP1, require SHA-2 Code signing support. Before you install this update, see the Prerequisites and Restart requirement sections.
See the Quality and reliability improvements section for more details.
This update for Windows 7 SP1 and Server 2008 R2 SP1 includes a fix to an issue introduced in the October 15 th Cumulative update.