[libvirt] Switch to a time based version number rule

[Kashyap Chamarthy]

On Mon, Jun 13, 2016 at 01:56:54PM +0100, Daniel P. Berrange wrote:

[Snip some nice analysis about libvirt versioning history.]

> I venture to suggest that the reasons for switching from feature to
> time based release schedules, also apply to version numbers. IOW we
> should switch to a time based version number change rule, instead of
> a feature based version number change rule.
> 
> 
> So what I'm suggesting is that we adopt the following rule
> 
>  - major: bumped for the first release of each year
>  - minor: bumped for every major release
>  - micro: bumped for stable branch releases
>

[...]

> The stable release branch naming would just use the first major + minor
> digit in its name.. eg the stable branch for 2.3.0 would use v2.3-maint
> and do stable releases 2.3.1, 2.3.2, 2.3.3, etc.

FWIW, as a user of libvirt, this proposed change is nice, and will be
more clearer.

-- 
/kashyap