I updated from RRF2 to 3.2.2 and had some game stopper issues and thought I would share if anyone else runs into some issues. 1. Starting any gcode file for a print would put the printer into a non-homed state. I had a start.g that doesn't exist in dc42's quadTitan TC config and mine had a T-1 in it that I believe was the problem. After removing the whole starg.g I was able to start a print. 2. My old config.g had M350 micro stepping "without interpolation" for just the extruders. The sample configs I've seen others use only have "with interpolation" M350. This meant having to adjust all of the steps per mm for the extruders because I was getting significant under extrusion. Not sure why I had "without interpolation" in there originally. 3. The original settings I had in RRF2 for homing the coupler did not work at all in RRF3. I have no idea why. I changed it to dc42 quadTitan settings which has it working, although I've had two random times where the coupler did not fully home with the new settings - something I never had happen in RRF2. See the code below. My original code: Code: ;crashc G92 C500 M913 C40 ; C MOTOR TO 40% CURRENT G1 C-200 F2400 M913 C100 ; C MOTOR TO 100% CURRENT G1 C1 F50000 G92 C0 ;Open Coupler M98 P/macros/Coupler - Unlock New code: Code: G91 M400 M913 C60 ; XY MOTORS TO 60% CURRENT G1 H2 C-1000 F10000 G92 C-125 G90 M913 C100 ; XY MOTORS TO 100% CURRENT G1 C0 F10000 ;Open Coupler M98 P"/macros/Coupler - Unlock" My biggest remaining issue is after a print completes the printer switches back to a non-homed state again which is kind of annoying. I'm guessing I have a T-1 somewhere. Other minor issues: I decided to use a new 32GB SD card for RRF3 and even though Windows said it was FAT32 the Duet said it was not formatted correctly. I reformatted the stupid SD card so many times and it wouldn't work. I ended up reusing an old 8GB SD card. Don't do what I did and assume your upgrade from v3.0 to v3.2.2 went fine. After getting it running on v3 I uploaded the zip update for 3.2.2 and it went through the process of installing and rebooted... back to v3.0 but I never checked the version. After that I caused some issues for myself assuming I was using 3.2.2 including updating the PanelDue which caused RRF v3.0 to spontaneously reboot (and the PanelDue to not work at all) and trying to write "if" statements that did not work. Oops. I initially missed the changes that had to be made for M574 physical endstop switches https://duet3d.dozuki.com/Wiki/RepRapFirmware_3_overview#Section_M574 I am not sure where changes to mesh bed leveling are made. My TC with RRF2 did mesh leveling very fast and now it is a slow check (with 2 button presses). My bed.g has the same settings as my old 2 file.