I updated my mods to 2.1 a little while ago but balack was broken by a recent update. As of now everything in the modpack should work.
Module inserter is the only mod I removed because it lacks 2.1 support that I intend to add back once it is updated. Several other mods in the pack were removed (example aai signal), replaced (example armoured biters) or remade in one of my mods (example robotics facility).
I would recomend making a copy of your world and loading it up with the current modpack and looking around to see if anything you need was removed. If so, make another copy and load it up with the removed mods. The shattered planet surface (previously enabled via balack setting) was moved to its own mod not included in the pack so this will have to be readded manually if you want it.
Also the modpack in just dependencies so if I added something you don't like (example moshine) you can remove it and the modpack from the save without issue.
If you have any problems please lmk