Huanli-Meng opened a new pull request #7257: URL: https://github.com/apache/pulsar/pull/7257
### Motivation This PR is to update doc for the PR: https://github.com/apache/pulsar/pull/6449 Doc contents have been approved by the previous PR link. Because there are two many conflicts in that PR. So I close the original PR and re-create this PR. ### Modifications Add retry letter topic in concept> messaging doc. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected]
