This is to shake out any backwards compatibility bugs between "latest" and "last-stable" shards.
- depends on
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                    SERVER-25170 Make moveChunk commands append an "epoch" field -         
- Closed
 
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- related to
- 
                    SERVER-25206 Rename 3.2 failMigrationReceivedOutOfRangeDelete and master failMigrationReceivedOutOfRangeOperation failpoint to coincide -         
- Closed
 
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- 
                    SERVER-25208 Rename 3.2 failApplyChunkOps and 3.4 failCommitMigrationCommand failpoints to coincide -         
- Closed
 
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