Speed factor and extrusion factor changes now take effect 1 move earlier
Default feed rate after reset increased to 3000mm/min
M574 command now accepts E parameter to that active low Z probe switches
can be used
Bed compensation is cancelled if Z probe was already triggered at the
start of a probe
M20 S2 response now flags directories with a * prefix
M408 command introduced as an alternative to M105 S2 and M105 S3
When cold extrusion is prevented, say which tool was affected in the
error message
Bug fix: if a drive was turned off manually after going into idle mode,
when it was enabled again the current remained at 30%
Bug fix: cold extrusion prevention did not work