davidradl commented on code in PR #26984: URL: https://github.com/apache/flink/pull/26984#discussion_r2344237178
########## docs/content/docs/dev/datastream/fault-tolerance/state.md: ########## @@ -542,6 +542,15 @@ where at least the first element has expired to determine the offset of the next e.g. after restart from savepoint. - Periodic compaction could only work when TTL is enabled. +### TTL Migration Compatibility + +Starting from Flink 2.2.0, Flink supports seamless migration between state with and without TTL enabled. + +If you previously configured state without TTL and now want to enable it (or vice versa), +this is now safe to do without triggering restore-time errors - as long as you are using a supported version. Review Comment: when I think of your `phrase supported version`, I would think it would cover the 1.20 release which is still in support. Maybe we should remove `- as long as you are using a supported version` in case people read it like I did. You are explicit with what migration can occur by version / release later in the details. It is up to you. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org