Checked the jira release pages, there are 34 issues for 2.4.17[1], and 49 issues for 2.5.4[2]. The previous releases for 2.5.x and 2.4.x were releases around ~2.10, so I think it is time to roll new releases now.
And for 3.0.0-alpha-4, we have made some progresses on HBASE-27109 as we have finally resolved HBASE-27216, the remaining issues are for documentation, mostly, so it is optimistic that we could land this feature and release 3.0.0-alpha-4 in the next few months. Thanks. 1. https://issues.apache.org/jira/projects/HBASE/versions/12352760 2. https://issues.apache.org/jira/projects/HBASE/versions/12352761
