Marlin 2.0.9 compatibility

Anybody run latest Marlin with OctoPrint?

You can find some of the stats here:

Yes, there are people running explicitly 2.0.9, more running bugfix versions. Some of the data is not great due to issues in the parsing of firmware name pre OctoPrint 1.6.0 and the fact that there is often a build timestamp. But you get the idea.


Working as expected here on my Ender 3 Pro with SKR1.3. I upgraded from 2.0.7 and had to rebuild my configuration files for compatibility.

Thanks guys, I'll give it a spin.

I assume there's no reason not to (and good reasons to) enable HOST_ACTION_COMMANDS, HOST_PROMPT_SUPPORT and HOST_START_MENU_ITEM?

I enabled them in my firmwares :slight_smile:

Also EMERGENCY_PARSER is a good one to enable.

I realize this probably isn't the right place but .....

Although the compile reports 0 errors I see this text in the log

C:\users\george.platformio\packages\framework-arduino-avr\libraries\Wire\src\utility\twi.c: In function '__vector_39':
C:\users\george.platformio\packages\framework-arduino-avr\libraries\Wire\src\utility\twi.c:552:7: warning: empty declaration
attribute ((fallthrough));
C:\users\george.platformio\packages\framework-arduino-avr\libraries\Wire\src\utility\twi.c:638:7: warning: empty declaration
attribute ((fallthrough));

Safe to ignore?