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    Type:New Feature 
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    Resolution: Fixed
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    Priority:Major - P3 
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    Affects Version/s: None
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    Component/s: Internal Code
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    None
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        Fully Compatible
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        Service arch 2020-10-19
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Add versions of these two TaskExecutor member functions which take CancelationTokens rather than using CallbackHandles.
- is depended on by
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                    SERVER-50342 Make version of Shard::runCommand that returns a future -         
- Open
 
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                    SERVER-51293 [cleanup] Make TenantMigrationDonorService use Future-returning version of scheduleRemoteCommand -         
- Closed
 
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- is duplicated by
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                    SERVER-50371 Make a version of TaskExecutor::scheduleRemoteCommand that returns a future -         
- Closed
 
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