weiqingy opened a new pull request, #26903: URL: https://github.com/apache/flink/pull/26903
## What is the purpose of the change This pull request improves the upgrading documentation by adding clear warnings about SQL/Table API state compatibility issues and including missing Flink 2.x versions in the compatibility table. ## Brief change log - Added warning that SQL/Table API jobs may have incompatible savepoints even during minor version upgrades due to query optimizer changes - Added Flink 2.0.x and 2.1.x to compatibility table with note that state compatibility is not guaranteed between 1.x and 2.x ## Verifying this change After the update, the documentation will be as follows: <img width="1171" height="752" alt="ddddd" src="https://github.com/user-attachments/assets/247ffac8-301e-48f3-afda-10ec914a91cc"; /> ## Does this pull request potentially affect one of the following parts: - Dependencies: no - The public API: no - The serializers: no - The runtime per-record code paths: no - Deployment or recovery components: no - The S3 file system connector: no ## Documentation - Does this pull request introduce a new feature? no - If yes, how is the feature documented? not applicable -- 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
