I updated from 1.1.7 straight to 1.2.5 and kept the save file. Went surprisingly well, no corruption or crashes and all machines kept working. However enviromine seems to be having trouble. Heat sources like lava buckets in hotbar or even being on fire do not cause the temperature to go up. Also no water is taken from a filled camel pack. Anyone has an idea what would cause this? For now i just disabled thirst, air quality, temperature and sanity all together since they are not much more than a nuisance at this point anyway.
Thanks for suggestions.