Re: [ANNOUNCE] libgpiod v2.2

[Kent Gibson <warthog618@xxxxxxxxx>]

On Wed, Oct 23, 2024 at 08:17:40PM +0200, Bartosz Golaszewski wrote:
> On Wed, Oct 23, 2024 at 6:25 PM Luca Weiss <luca@xxxxxxxxxxxx> wrote:
> >
> > On Dienstag, 22. Oktober 2024 13:16:17 Mitteleuropäische Sommerzeit Bartosz
> > Golaszewski wrote:
> > > I'm announcing the release of libgpiod v2.2.
> > >
> > > This is a big update for libgpiod bringing in the D-Bus daemon and its
> > > command-line client, GLib bindings with GObject-introspection and a
> > > slew of other updates and improvements. The detailed changelog can be
> > > found in the NEWS file.
> > >
> > > The goal of the D-Bus API is to address the concerns about the lack of
> > > persistence of GPIO state when the process that requested it exits.
> > > Now the state can be stored inside the GPIO manager with which clients
> > > can interact using a well known protocol.
> > >
> > > The release tarball and the git tree can be found over at kernel.org[1][2].
> > >
> > > Bartosz
> > >
> > > [1] https://mirrors.edge.kernel.org/pub/software/libs/libgpiod/
> > > [2] git://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git
> > >
> > >
> >
> > Hi Bartosz!
> >
> > I'm noticing while packaging for Alpine that the file name of the installed
> > lib changed from libgpiod.so.3.1.2 in v2.1.3 to libgpiod.so.3.1.1 in v2.2 - so
> > essentially it jumped back.
> >
> > I'm guessing this is not on purpose and while I don't think it should cause
> > issues in the distro, I wanted to make you aware.
> >
>
> Everytime I do a release, I bump the libtool ABI numbers as suggested
> here[1] depending on how the code evolved between the versions.
>
> I guess I bumped the revision everytime new fixes landed and were
> released in v2.1.x stable branch but for master I only did it once
> when releasing v2.2.
>

If the 2.1.x branch is to continue to be supported then the 2.2 branch
should've gone with ABI v3.2.0 to provide space for subsequent 2.1.x
releases.
If 2.1.x is finalised and merged into 2.2 then it needed to be bumped past
the last 2.1.x, so v3.1.3.

> I'm not sure what exactly should be done with that. I can of course
> set the libgpiod ABI to v2.1.4 in v2.2.1 bugfix release if that
> doesn't cause any issues but it doesn't really feel right.
>

You mean v3.1.4 for the ABI, right??  Otherwise it definitely doesn't
feel right ;-).

There is no need to skip over v3.1.3 since you haven't used it yet.
As I see it, your options are v3.1.3 or v3.2.0, depdending on whether
2.1.x is considered a dead branch.

Cheers,
Kent.