Player'S Handbook 2024 Monk. The hp seem pretty poor (cf barbarian same level with con 24 would have on average 275.5 hp), but if the monk was hit on 10 rounds of combat over course of an adventuring day, they’ve effectively got an extra 325 hp. It specifically explains that you can still cast a cantrip.

Monk changes in the revised d&d 5e 2024 player’s handbook. When rolling initiative, can regain all expended focus points and restore a number of hit points (1/long rest) redesigned deflect attacks feature at 3rd level.