[arch-general] How stable are the new version number formats on eg. filesystem, usbutils, etc.

All, Updating different minimum dependency package version info for tde PKGBUILDs, I note there have been a number of 'version number format' changes for various packages. E.g.: filesystem 0.x.y-z ==> 2013.05-2 usbutils 0.x.y-z ==> 006-1 There is a big difference going from filesystem>=0.7.3 to filesystem>=2013. When I run across packages like this where the version has changed format -- Are they likely going to stay with the new format? Or will they likely revert back to major.minor-rel numbers at some time? -- David C. Rankin, J.D.,P.E.