A 2.3.1 release will come soon with all the fixes included of course.
In the mean time, we released hotfix builds because they are minor bugs which are only relevant to a handful of persons. It's not funny when you see a new release every few days and you keep having to update (because you feel that you should even if there is no reason since you're not using the piece with the bug, or your server is configured in a way that it is not a problem for you, or you already have a version which doesn't have the problem).
The best is to wait that we activate the auto update in the Joomla updater of you live website (usually several days/weeks after a release) to update your HikaShop. That way, you're sure sure that it is pretty stable.