Microsoft has released updates for Exchange Server 2010 and 2007 for December 2015.
- Update Rollup 12 for Exchange Server 2010 SP3 contains a time zone calculation fix and a number of other fixes rated as important.
- Update Rollup 18 for Exchange Server 2007 SP3 contains a time zone calculation fix and one other “opportunistic fix”.
This is largely what you can expect for Exchange 2010/2007 releases due to their current support status. Time zone/DST fixes are quite normal, and Microsoft reserves the right to slip in any other fixes they deem necessary or convenient at the time (for example, they might need to add a fix to Exchange 2010 to solve an unanticipated co-existence issue with Exchange 2013/2016 that rears its head in future).
I’m running a survey at the moment and so far I can see that a good majority of you are still running Exchange 2010, 2007, or earlier (!), but that a similar majority of you plan to migrate to a newer on-premises version or to the cloud in the next 12 months.