Keeping Linuxcnc 2.9 current on Debian Bookworm

But I'm already dealing with a a bug in 2.9.5, and not being able to specify an offset when touching off the Z axis is a lot more relevant to me than the 2.9.9 bug appears to be.

I presume that I should in fact be aiming for 2.5.6, or perhaps 2.5.7 or 2.5.8. How do I go about upgrading to one of these versions?

After a moment's reflection I do get it. The 2.9.9 bug is serious because it could result in existing gcode not only not working but causing damage. So the 2.9.9. code had to be removed, and as the upgrade process still sees 2.9.9 as the "current" version, update attempts are going to fail.

But I would still like to get away from the 2.9.5 bug, and so my question remains. Is there an easy way in which I can upgrade to a subsequent version that does not suffer from this bug?

If 2.9.8 works for you:
github.com/LinuxCNC/linuxcnc/releases/do...8_amd64_bookworm.deb
Download, double click, open and install with gdebi.

forum.linuxcnc.org/38-general-linuxcnc-q...ird-behaviour#347456

You can force a version in the Synaptic package manager.

Or grab the new 2.9.10 .deb from Github.