Update Rollup 11 for Exchange 2010 Service Pack 3 is now available for direct download.
This Rollup Update contains 1 new fix, and all previously released fixes and security updates for Exchange 2010 SP3. This is also the minimum version of Exchange 2010 which supports coexistence with Exchange 2016.
- KB3092576 Multiple events are logged and Information Store service crashes randomly in an Exchange Server 2010 environment
Note that mainstream support for Exchange 2010 has ended. This means that it will basically only get security and DST updates until mainstream support ends as well.
View: Description of Update Rollup 11 for Exchange Server 2010 Service Pack 3
Download: Update Rollup 11 For Exchange 2010 SP3 (KB3078674)