The PMC is still working through some graduation common tasks with INFRA, these are mostly done, please refer to INFRA issue.
There are some clean up common tasks based on three repos of rocketmq: apache/rocketmq, apache/rocketmq-externals, apache/site:
1. Change version from 4.2.0-incubating to 4.2.0 in JIRA system
2. Change version info and SCM label in pom.xml of apache/rocketmq
3. Clean up all incubator* prefix in these three repos.
4. Polish the quick start guide.
5. Send an email about TLP related changes to dev and user lists