I too would suggest and recommend waiting and not doing the upgrade from UM 23.10 to 24.04.
Reason: I've done it on Saturday (the 27th of April, 2024) and had the "joy" to spend about 12 hours with things like installing / reinstalling apps, trying different fixes, moving to snap apps, backing up data, etc. And the PC would not even boot with the new kernel 6.8.x, but only with an older kernel from the 6.5.x series.
I've ended up spending another half a day to re-install from scratch UM 24.04 and, yes, it works like a charm, as before.
But I could have avoided the entire "story" if I would have not done the upgrade.