Open Stack

On Thu, Feb 09, 2017 at 05:29:22PM -0600, Matt Riedemann wrote:
> Since danpb hasn't been around I've sort of forgotten about this, but we
> should talk about bumping the minimum required libvirt version in nova.
> 
> Currently it's 1.2.1 and the next was set to 1.2.9.
> 
> On master we're gating on ubuntu 14.04 which has libvirt 1.3.1 (14.04 had
> 1.2.2).
> 
> If we move to require 1.2.9 that effectively kills 14.04 support for
> devstack + libvirt on master, which is probably OK.
> 
> There is also the distro support wiki [1] which hasn't been updated in
> awhile.
> 
> I'm wondering if 1.2.9 is a safe move for the next required minimum version
> and if so, does anyone have ideas on the next required version after that?

1.2.9 was release on OCT 2014.

And there have been 26 releases from 1.2.9 until now:

    1.2.{10,11,12,13,14,15,16,17,18,19,20,21}
    1.3.{0,1,2,3,4,5}
    2.0.0 [01 JUL 2016]
    2.1.0 [02 AUG 2016]
    2.2.0 [02 SEP 2016]
    2.3.0 [04 OCT 2016]
    2.4.0 [01 NOV 2016]
    2.5.0 [04 DEC 2016]
    3.0.0 [17 JAN 2017]
    3.1.0 [Unreleased, as of 10-FEB-2017]

IIUC, going by how[X] Dan settled on 1.1.1, as minimum version for
Newton, it seems like have to mine through the current releases,
that'll: 

  - provide unconditional support for specific features we need; 
  - removes need for maintaining backward compatibility code

[X] http://lists.openstack.org/pipermail/openstack-operators/2015-October/008400.html

---

Good news for future: Upstream libvirt recently started an effort to
make release notes more consumable, by writing more 'structured' release
notes, and categorizing the work into: new Features; improvements; and
bug fixes.

You can see the result by comparing this page:

    http://libvirt.org/news.html

With the older releases (where it's mostly information from Git
commits):

    http://libvirt.org/news-2016.html

[...]

-- 
/kashyap