The 2.10.0 release went GA roughly 5 months ago. A bunch of issues were fixed.
If any one's interested in being the Release Manager, I've made your work slightly easier: Here's a dashboard for 2.10.1 issues. I granted edit permission to all committers. https://issues.apache.org/jira/secure/Dashboard.jspa?selectPageId=12335319 Cheers, Weichiu