Bastien writes that Org Mode 9.3.2 has been released. It’s a bug release so no new features but if you are experiencing problems with Org, you should consider upgrading. Even if you aren’t seeing problems, it’s probably a good idea to update.
Correction
In Sunday’s post on Undo Region, I said that selective undo did not appear to work with undo-tree. One of Irreal’s intrepid readers, hjmr, discovered that it did work in older versions of undo-tree and that in the latest version it still works but you have to enable it. I’ve added an update to the Undo Region post that gives the spell for making it work but because there appears to be a lot of interest in selective undo, I wanted to make sure all of Irrealdom knows that you can use it with undo-tree.