On .NET Framework 4.6.1 and Exchange Skype4B Lync compatibility

We wanted to post a quick note to call out that since yesterday, the .NET Framework has been made a recommended on WU ( Update).

As we have already stated in the Exchange Supportability Matrix, at this time, this version of .NET framework is not supported by . In fact, we know of some issues if it is installed.

We are working with the .NET team to ensure that Exchange customers have a smooth transition to .NET Framework 4.6.1, but in the meantime, delay this particular .NET update on your Exchange servers (information on how this can be accomplished can be found in the KB article 3133990, How to temporarily block the installation of the .NET Framework 4.6.1).

http://blogs.technet.com/b/exchange/archive/2016/02/10/on-net-framework-4-6-1-and-exchange-compatibility.aspx.

As a result of this recommendation from the Exchange team, the for team is recommending the same course of action for / servers.

Please follow the guidance located here to block the installation: 3133990, How to temporarily block the installation of the .NET Framework 4.6.1).