Microsoft has already released the 16th Cumulative Update for Exchange Server 2013. Exchange Server 2013 was released in January 2013. Mainstream support from Microsoft will run until April 2018, and extended support will run until April 2023. During this extended period, only security and time zone updates will be implemented. For a general discussion about Exchange Server 2013, you can visit the general Exchange 2013 topic on our forum. The KB article with number 4012112 mentions the following changes:
Cumulative Update 16 for Exchange Server 2013
Cumulative Update 16 for Microsoft Exchange Server 2013 was released on March 21, 2017. Several nonsecurity issues are fixed in this cumulative update or a later cumulative update for Exchange Server 2013. This release includes support for Windows time zone updates released through March 2017.
Issues that this cumulative update fixes
This cumulative update fixes the issue that is described in the following Microsoft Knowledge Base article:
|Version number||2013 CU 16|
|Operating systems||Windows Server 2008, Windows Server 2012|