The footer/status bar acts as a link back to home for the most part. Taping it returns you to home.
The graphing of water level data will come back in one form or another but it wasn’t fair leaving a broken implementation in the code. Once I identify a better library the support will likely return.
The notification icon only shows up if you have a notification. Is the desktop connecting to the same OpenSprinkler that needs a firmware update? If so, I would try refreshing a few times sounds like a cache issue, maybe.