Are The Devs give us the new 2.1.0 update during at night?
Devs have very little control on the final release time. They submit to Google and Apple for review and the timing of release depends on how quickly those reviews take place and when they are approved. I can’t remember if the devs have a final “push the button” so to speak.
However if that is the case and the devs are based in Europe, it’s entirely possible for some parts of the world to get releases at night