On September 15th Microsoft has released Exchange Server 2010 Service Pack 3 Update Rollup 11 (SP3 RU11). Rollup Update 11 contains the latest set of fixes. Exchange Server 2010 Service Pack 3 Update Rollup 11, is the minimum version of Exchange Server 2010 which will be supported in a coexistence deployment with Exchange Server 2016.
Microsoft announced yesterday that release Exchange Server 2010 Service Pack 3 Update Rollup 11 is the minimum version of Exchange Server 2010 which will be supported in a coexistence deployment with Exchange Server 2016.
This update besides providing coexistence ability with Exchange 2016 fixes the issues that are described in the following Microsoft Knowledge Base (KB) article:
Update RU11 for SP3 (SP3 RU11) can be downloaded from Microsoft.