On .NET Framework 4.6.1 and Skype for Business/Lync Server Compatibility

Hello Everyone! As you may know, .Net 4.6.1 is now available and has been made a recommended update on Windows Update. At this time, the Exchange team is recommending that you do NOT install this update on your Exchange servers: 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 Skype for Business team is recommending the same course of action for Lync/Skype for Business 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).

Comments (8)

  1. Tobie Fysh says:

    Two questions:

    For those customers who have blindly installed are you going to update this post with instructions (Like the Exchange team http://blogs.technet.com/b/exchange/archive/2016/02/10/on-net-framework-4-6-1-and-exchange-compatibility.aspx) or shall we just use the same instructions but for step two stop all Lync/SfB services?

    Will logic get added to detection routines so that this does not get offered if the WU agent sees Lync/SfB server binaries installed?

  2. YeoLyle says:

    Thanks for the article. Not sure if you can answer this, but Is there a time frame when 4.6.1 would be supported with Lync 2013?

    1. Kris-MSFT says:

      Hi Lyle, we are actively working on this, but unfortunately do not have a timeframe as of yet. The team will work on updating this post when we have a plan in place.

    2. Kris-MSFT says:

      Hi Lyle, we are working to provide guidance in this area. We will update the post as soon as we have more information.

      1. AJM says:

        Hi Kris

        Has there been any progress on a timeframe for when this is going to be supported? I couldn’t find a supportability matrix for .Net versions on Skype For Business server, am I correct to assume 4.6 is fine to install?

        Thanks in advance

  3. Keks Stern says:

    Any Updates on this?

  4. chaoshacker says:

    Is this recommendation still valid? With every update of .Net Framework this is a topic. Install it or install it not???

    1. Kris-MSFT says:

      Hi Chaoshacker, we should have an update on this topic soon.

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