How should I roll out a ggLeap client update on PXE machines?

For PXE/diskless machines, update and test one PC first. Enable Keep Writebacks on that PC, change its client version in Web Admin, and wait for the update to finish. Apply the writeback only after the PC has completed the update. Then change the version for the remaining PCs in Web Admin and restart them.

If a PC still boots to the old version, the writeback may have been applied while the update was still in progress. Power off the reference PC, apply a new writeback, then change the version again for the remaining PCs and restart them. Stable is recommended for a standard production update.