Yellow warning after the last update.

[alexz179]

After installing the latest update, my 3D printer warns about outdated instructions in the MCU and asks to recompile and flash it. What should I do?

[mattjm]

That sounds like a Klipper message, not from the armbian OS.  If there is new functionality in Klipper it will show this error, but you don't always need to reflash the MCU depending on if you use those functions.  You can post in a more detailed error and versions in a Klipper forum for advice.