EXCHANGE 2013 CU17 AND EXCHANGE 2016 CU6

On June 27, 2017 has released its quarterly for 2013 and 2016. The current is now at (15.0.1320.4) and (15.1.1034.26) . But this time there are some interesting things I’d like to point out.

A couple of days before the release of CU6 (15.1.1034.26)
Microsoft blogged about Sent Items Behavior Control and Original Folder Item Recovery. With the Sent Items Behavior Control, a message that’s sent using the Send As or Send on behalf of permission is not only stored in the mailbox of the user that actually sent the message, but a copy is also stored in the delegator mailbox sent items. This was already possible for shared mailboxes, but now it’s also possible for regular mailboxes (like manager/assistant scenarios).

The Original Folder Item Recovery feature is I guess on of the most requested features. In the past (before Exchange 2010) when items were restored after they were deleted, they were restored to their original location. With the Dumpster 2.0 that was introduced with Exchange 2010 this was no longer possible, and items were restored to the deleted items folder. In this case the items had to be moved manually to their original location. With the introduction of the Original Folder Item Recovery the restore of deleted items again takes place in the original folder.

Unfortunately, both Sent Items Behavior Control and Original Folder Item Recovery are only available in Exchange 2016 CU6 (and NOT in CU17).

When it comes to 1.2 is a hot topic. Microsoft is aware of this and working hard towards an Exchange environment that only uses 1.2 (so that 1.1 and 1.0 can be disabled). We are not yet at that stage. Exchange 2016 CU6 does have improved support for 1.2, but Microsoft is not encouraging customers to move to a 1.2 environment only.

.NET Framework and Exchange server continues to be a difficult scenario. This is understandable, Exchange is just a consumer of and .NET so the Exchange Product does not have much influence on the .NET (and Windows) Product .

Exchange 2016 CU6 does NOT support.NET Framework 4.7 at this moment, and you should NOT install .NET Framework on a server running Exchange 2016. Not before and not after the installation of Exchange 2016 CU6. This is also true for CU17. More information regarding .NET Framework and Exchange server can be found here: https://blogs.technet.microsoft.com/exchange/2017/06/13/net-framework-4-7-and-exchange-server/.

The .NET Framework 4.6.2 is supported by Exchange 2016 CU3 and higher and and higher. For a complete overview of which scenarios are supported, navigate to the Exchange Server Supportability Matrix on https://technet.microsoft.com/en-us/library/ff728623(v=exchg.150).aspx.

KB articles that describe the fixes, features and information in each release are available as follows:

Version

Build

KB Article

Download

UMLP

Schema Changes

Exchange 2016 CU6

15.1.1034.26

KB4012108

Download

UMLP

Yes

Exchange 2013 CU17

15.0.1320.4

KB4012114

Download

UMLP

No

Source: jaapwesselius