Michael Richardson writes: > And you can't force people to monotonically go up in versions, because bugs > do occur, and people need to "undo"...
Undo should always need to be manual operation, preferrably something like reboot and press factory reset button, and then you can load any firmware without any checks in. For automatic updates, or normal updates done by adminstrative interface, there is never need to go backwards, i.e., you can force them to do monotonically go up in version. Also quite a lot of systems actually keep two firmwares, current and backup one, so undo operation will simply switch to the backup version. There are lots of devices which you cannot downgrade once you have upgraded them, and people do not really consider them a problem... I do not even remember when was the last time I needed to downgrade back to previous version. There has been some versions which have been buggy, but usually those are fixed by manufacturer, and the fix will be to load next firmware, not downgrading to old one. -- kivi...@iki.fi _______________________________________________ homenet mailing list homenet@ietf.org https://www.ietf.org/mailman/listinfo/homenet
