Which format is correct?

All,
I noticed that there is a variation of variable naming conventions between linuxcnc version 2.8 and the DEVEL version.

The difference I'm seeing is a hyphen and an underscore delimiting variable words.

Here's the related v2.8 docs page and the related DEVEL (2.10) docs page .

The variables that I noticed are as follows:

2.8 Versionqtdragon.modbus-errors
qtdragon.spindle_amps
qtdragon.spindle_fault
qtdragon.spindle_volts

2.10 Versionqtdragon.spindle-modbus-connection
qtdragon.spindle-modbus-errors
qtdragon.spindle-amps
qtdragon.spindle-fault
qtdragon.spindle-volts
Are these typos or a valid change?

That was an intentional change.
Hyphen is the usual thing with HAL names.

Thanks Chris!