Originally published at: Little Snitch 6.0.4 - TidBITS
Fixes a bug that prevented existing rules and settings from being preserved when upgrading from version 5. ($59 new, free update, 36.4 MB, macOS 14+)
Yep it happened to me rules were basically erased when going from 5 to 6. But with the help of the objective development team they put me on the right track, and then about 5 days later the 6.0.4 version came out. If I only waited!!