Re: [qemu-web v2 PATCH] Update the information about the required version of macOS

[Thomas Huth]

On 13/09/2021 10.28, Daniel P. Berrangé wrote:
> On Mon, Sep 13, 2021 at 10:04:25AM +0200, Thomas Huth wrote:
> > On 13/09/2021 09.35, Howard Spoelstra wrote:
> > > On Mon, Sep 13, 2021 at 8:21 AM Thomas Huth <thuth@redhat.com
> > > <mailto:thuth@redhat.com>> wrote:
> > >
> > >      The versions that we specify for macOS are way too old already. Let's
> > >      rephrase this without specific version numbers, pointing the users
> > >      to the latest version instead.
> > >
> > >      Signed-off-by: Thomas Huth <thuth@redhat.com <mailto:thuth@redhat.com>>
> > >      ---
> > >        v2: Rephrased to be more in sync with docs/about/build-platforms.rst
> > >
> > >        _download/macos.md | 6 ++++--
> > >        1 file changed, 4 insertions(+), 2 deletions(-)
> > >
> > >      diff --git a/_download/macos.md b/_download/macos.md
> > >      index 06aa811..c55438a 100644
> > >      --- a/_download/macos.md
> > >      +++ b/_download/macos.md
> > >      @@ -6,5 +6,7 @@ QEMU can be installed from <strong>MacPorts</strong>:
> > >
> > >        <pre>sudo port install qemu</pre>
> > >
> > >      -QEMU requires Mac OS X 10.5 or later, but it is recommended
> > >      -to use Mac OS X 10.7 or later.
> > >      +QEMU requires the the most recent macOS version that is currently
> > >      available.
> > >      +Support for the previous version will be dropped two years after the
> > >      current
> > >      +version has been released or when Apple drops support for it, whatever
> > >      comes
> > >      +first.
> > >      --     2.27.0
> > >
> > >
> > > Hi,
> > >
> > > Nice to see this clarified.
> > > I guess a small typo crept in: "QEMU requires the the most recent macOS
> > > version that is currently available."
> >
> > Thanks, I'll drop one of the "the"s.
> >
> > > Also, is this statement correct when the 2 year previous version(s) are
> > > also supported?
> >
> > https://qemu-project.gitlab.io/qemu/about/build-platforms.html only talks
> > about "the previous major version" ... so that's a good question, what
> > happens if a vendor releases multiple major versions within two years?
> >
> > I guess the intention was that all previous versions are supported as long
> > as the two years haven't expired yet. We might need to update the
> > build-platforms text in that respect, too.
>
> The intention was that we limit the scope of our support to at most
> 2 concurrent releases, even if the vendor has more still under support.
> The current major version at all times, and the previous major version
> for upto 2 years (unless vendor EOLs it before then).

Ok, then we should maybe talk about "the *last* previous major version" instead?

Also it seems like we have a similar situation with NetBSD:

 https://gitlab.com/qemu-project/qemu/-/issues/614

Version 9.0 has been released in 2020, i.e. it's not older than two years 
yet. Current version is 9.2 already, though, so there has been a previous 
major version (9.1) in between, right?

 Thomas