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Exchange Server 2010 – Service Pack 3 Update Rollup 11 (SP3 RU11) Released
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.
📢 Release Information
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.
📝 Notes
- Update Rollup 11 for Microsoft Exchange Server 2010 Service Pack 3 (SP3) was released on September 15, 2015.
- Before you install this update, you must remove all interim updates for Exchange Server 2010 SP3.
- Please check important information about how to install this update on Microsoft webpage before applying the update.