In case of the yesterday’s update there is no change in the version number, same happened in the last update.
This is a again a mistake of Bohemia.
Only change was in the file DayzServer_x64.exe, but because of no higher version number we were able to connect without updating server files and this time it’s no big deal to not update.
In general Nitrado servers getting the updated automatically, maybe a little bit delayed.
You can do updates manually by yourself or wait for Nitrado doing the updates.
Be aware that the files you edited before (e.g. types.xml, init.c ..) don’t get updated automatically, you have to do that yourself .