We've had a rough few point releases in the 2.3 series. As a result I know there are people who are sitting on earlier releases rather than running 2.3.10. This is obviously not ideal. Especially for a release series that's in long-term maintenance mode.
So to fix all that I'd like to put a bunch of effort into tidying up the 2-3-stable branch to remove most / all of the upgrade blockers that people have hit. This will let people upgrade to 2.3.11 and pick up the bugfixes and security fixes which have been applied to that release. It'll also set us up nicely for any future bugs that get fixed.
So, if you have a 2.3.x application which can't be upgraded to 2.3.10 ( or 2-3-stable as of today ) please reply to this thread and include a link to a lighthouse ticket so we can take a look.