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    Type:
Task
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    Resolution: Won't Do
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    Priority:
Major - P3
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    None
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    Affects Version/s: None
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    Component/s: None
 
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        Storage Execution
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        v8.0
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        Execution Team 2024-06-10, Execution Team 2024-06-24, Execution Team 2024-07-08, Execution Team 2024-07-22
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        None
 
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After SERVER-86511, which was done as part of SPM-3055, fully upgraded 8.0 binaries that have the FCV set to enable SPM-3055 can have v3 buckets present. If customers downgrade from 8.0 to earlier versions, queries on time-series collections can fail because older binaries do not recognize v3 buckets (more in SERVER-90808).
This check would block downgrading with an ManualInterventionRequired error code if a user tries to downgrade an 8.0 binary to 7.0 if any time-series collections are present.
- related to
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SERVER-90808 Time-series version 3 buckets cause queries to throw a user assertion in earlier versions
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 - Closed
 
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SERVER-92231 [v7.0] Enable the bucket unpacker to read v3 buckets and treat them as v2 buckets
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 - Closed
 
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