[ClusterLabs] Pacemaker 3.0.0-rc1 released

[Ken Gaillot]

I forgot to mention that there are two known issues with upgrading an
existing cluster to 3.0.0-rc1 that are expected to be fixed for rc2:

* In cases where deprecated syntax is transformed to current syntax,
and the behavior is not exactly the same, currently there is no
indication of that. We plan to add warnings in the log when the
behavior may change.

* Also in cases where deprecated syntax is transformed to current
syntax, the current syntax may no longer match the same ACLs that the
deprecated syntax did. This may add or take away permissions for ACL-
restricted users. At a minimum, we plan to log warnings when this is a
possibility. We're hoping we can transform the ACLs to continue working
as intended in at least some cases.

On Mon, 2024-11-18 at 10:13 -0600, Ken Gaillot wrote:
> Hi all,
> 
> I am very happy to announce that the first release candidate for
> Pacemaker 3.0.0 is now available at:
> 
> https://github.com/ClusterLabs/pacemaker/releases/tag/Pacemaker-3.0.0-rc1
> 
> Pacemaker major version releases indicate that support for rolling
> upgrades has changed. For Pacemaker 3, rolling upgrades are supported
> only from Pacemaker 2 or later. (Pacemaker 1 clusters can be upgraded
> in two steps, first to any Pacemaker 2 version, then to any Pacemaker
> 3
> version.)
> 
> Very little has been added or fixed for 3.0.0; instead, the release
> focuses on dropping support for deprecated features, such as Nagios
> and
> Upstart resources and rkt bundles. Most dropped support is for
> features
> that are long obsolete and/or undocumented and so should affect
> relatively few users.
> 
> For an extensive list of all backward-incompatible changes in
> Pacemaker
> 3, see:
> 
> https://projects.clusterlabs.org/w/projects/pacemaker/pacemaker_3.0_changes/
> 
> As we move forward, all new development will be for the Pacemaker 3
> series. Selected bug fixes will be backported for continued Pacemaker
> 2
> releases for at least a few years, but major new features will not be
> backported.
-- 
Ken Gaillot <kgaillot at redhat.com>