I honestly don't know how this could happen (accidentally end up on the beta channel), if it is happening I'm sure you won't be the last to post about it.
22.7 is still the latest regular release, though 22.8 is probably close if you look at program update history being around the end of the month. However, there appears to be around 10 program updates in a 12 month period.
Personally I have Program Updates set to Manual update and I'm still on 22.5.6015 as I haven't seen much in the bug fixes (I'm not suffering) or enhancements that I feel worth updating.