Hi Colin, Thanks for the KIP. It’s good to give users more flexibility to downgrade metadata.version.
PY1: Each feature has bootstrapMetadataVersion. For example, TV_2 is IBP_4_0_IV2. Assume that a cluster uses TV_2 and metadata.version 4.0-IV2. If a user downgrades metadata.version to 3.9-IV0, will the controller check TransactionVersion and reject the request? PY2: After users downgrade metadata.version, can they also restart server with old binary version? If they can, we need to add related end-to-end ducktape test. Thanks, PoAn > On Apr 8, 2025, at 6:04 AM, Colin McCabe <cmcc...@apache.org> wrote: > > Hi all, > > I posted a new KIP about support metadata.version downgrades. Take a look > here: > https://cwiki.apache.org/confluence/display/KAFKA/KIP-1155%3A+Metadata+Version+Downgrades > > thanks, > Colin
