Since run_probe was altered to return the probe Z position rather than the nozzle Z position bilinear levelling has been broken because the Z-offset has been applied twice - once in the run_probe function, and then again in the G29 code for bilinear levelling.

M421 was not connected up for AUTO_BED_LEVELING_BILINEAR.
M421 needed to migrate mesh data to new UBL EEPROM layout.

Power Supply 0 as "General"

As it turns out...   an unsigned int can not go to less than 0,  so the
loop never terminates.

Patch .gitattributes till UBL line endings are fixed

Fix thermal runaway when nonexistent bed temp is set

Configurable delay for BLTouch servo emulation

G38 bug fix, made double touch optional & reverted to Z_MIN_PROBE

Fix LCD preheat menus

Add .gitattributes to normalize line endings

Patch MarlinSerial to match up with 32-bit version

Patching up UBL, vetting recent commits

Fix broken auto#.g, some other regressions

Add PROBE_MANUALLY — ABL without a probe

Further adjustments to UBL code