Which Exchange 2010 SP3 rollup is the most stable?

Which rollup package for Exchange 2010 SP3 has the fewest bugs and is the most stable? I know there were a couple rollups which caused issues for people.
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StuartTechnical Architect - CloudCommented:
Most of my clients that still run Exchange 2010 are now on CU10 and it seems very stable - no reported issues so far

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donohoe1Author Commented:
StuartTechnical Architect - CloudCommented:
Yes this is the latest update for Exchange 2010 SP3 also, don't forget to run the setup as administrator or disable UAC before you install
Will SzymkowskiSenior Solution ArchitectCommented:
Exchange 2010 SP3 RU11 is the most recent RU. It is a best practice to stay current with the RU's and CU's as it correct issues that have been reported in eariler releases. RU 11 only came out Sept 15, 2015 so it is pretty new, however I would still recommend downloading it and installing it in a lab environment.

You can get a complete list of RU's and CU's for Exchange at the below link.

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