Thomas Huth <th...@redhat.com> writes: > On 10.05.2017 11:08, Daniel P. Berrange wrote: >> On Wed, May 10, 2017 at 08:48:53AM +0200, Thomas Huth wrote: [...] >> Also unless we're going to get more serious about automated testing to >> validate machine type compatibility between *all* previously releases, >> I think that 6 years / 18 releases is too long a time to have any >> confidence in migration compatibility between versions.
Seconded. > Distro vendors often offer 5 - 10 years support for certain versions of > their Linux distros, so I think we should at least support 5 years, too. Non sequitur. Distro vendors put in serious work to keep versions working for 5 - 10 years. We can't, and we don't. All we do is try not to break things, which is nice, and helps the distro vendors some, but a far cry from anything I'd dare call "support". Perhaps an argument could be made that us keeping to try for at least 5 years would help distro vendors enough to be worthwhile. Maybe, but color me skeptic. >> IOW, I think you should be more aggressive in culling old machine types >> that this patch is... > > Actually, I like the idea of using the major release versions for > defining the set of removal - hoping that we will do a v3.0 next year > which then would support the previous two major release versions 1.x and > 2.x, but drops support for the 0.xx versions completely ... I wouldn't put *that* much weight into our past version numbers. If I remember correctly, there was no more to 1.0 than a feeling of "this 0.x thing is getting ridiculous".
