.Net 4.6.1 Support
Support for .Net 4.6.1 is now available for Exchange Server 2016 and 2013 with these updates. We fully support customers upgrading servers running 4.5.2 to 4.6.1 without removing Exchange. We recommend that customers apply Exchange Server 2016 Cumulative Update 2 or Exchange Server 2013 Cumulative Update 13 before upgrading .Net FrameWork. Servers should be placed in maintenance mode during the upgrade as you would do when applying a Cumulative Update. Support for .Net 4.6.1 requires the following post release fixes for .Net as well.
- Windows Server 2008/2008R2 – KB3146716
- Windows Server 2012 – KB3146714
- Windows Server 2012R2 – KB3146715
Note: .Net 4.6.1 installation replaces the existing 4.5.2 installation. If you attempt to roll back the .Net 4.6.1 update, you will need to install .Net 4.5.2 again.
AutoReseed Support for BitLocker
Beginning with Exchange 2013 CU13 and Exchange 2016 CU2, the Disk Reclaimer function within AutoReseed supports BitLocker. By default, this feature is disabled. For more information on how to enable this functionality, please seeEnabling BitLocker on Exchange Servers.
SHA-2 Support for Self-Signed Certificates
The New-ExchangeCertificate cmdlet has been updated to produce a SHA-2 certificate for all self-signed certificates created by Exchange. Creating a SHA-2 certificate is the default behaviour for the cmdlet. Existing certificates will not automatically be regenerated but newly installed servers will receive SHA-2 certificates by default. Customers may opt to replace existing non-SHA2 certificates generated by previous releases as they see fit.
Migration to Modern Public Folder Resolved
The issue reported in KB3161916 has been resolved.
This cumulative update fixes the following issues:
- KB 3171162 You cannot search emails in Outlook or Outlook Web App in an Exchange Server 2016 Cumulative Update 1 environment
- KB 3164346 Cannot connect to a mailbox when MAPI over HTTP protocol is used in an on-premises Exchange Server 2016 installation
- KB 3162968 “Failed to load script” error when you log on to OWA and select a language
This cumulative update also fixes the issues that are described in the KB 3160339 MS16-079: Security update for Microsoft Exchange: June 14, 2016 and KB 3134844 Cumulative Update 1 for Exchange Server 2016
Microsoft Knowledge Base articles.
This update also includes new daylight saving time (DST) updates for Exchange Server 2016. For more information about DST, go to Daylight Saving Time Help and Support Center.