There have been a couple of important bugs spotted, patches (re-)sent to the list, and also several other good suggestions made. Some of the fixes are already in the development branch and will be available in Textpattern CMS 4.0.4, but several others will have to wait until after the release. We would have loved to get those suggestions a few weeks earlier for the dev-snapshots/pre-releases we posted. As it is, the release candidate was intended to catch last minute more or less critical bugs (contrary to what history might have lead you to believe!
Due to some still outstanding issues, we are targetting next Monday/Tuesday for the final release of Textpattern CMS 4.0.4 (give or take a day), if all goes well.
In the meantime, I would ask everybody to leave us a comment about the 2-3 updates/changes between 4.0.3 and the upcoming 4.0.4 (what you’ve seen in the release candidate so far) that you like best, or that affects you the most, or that noticably improves the handling for you.