The guides have not been update yet.. I'll start the documentation update process after this weekend's release (0.9), once code freeze in place.I might ask if theres a new guide or a wiring pinout i need to change to. .3 is solid! It just running and running. No reboots or anything!
Electronics/wiring everything remained same, just the UI has changed a bit, you have to recreate your outlets etc. Also username/password is enforced. No hardware changes, its all UI changes, lots of more features, many critical bug fixes (some were introduced in 0.6/0.7)