On Thu, Feb 6, 2020 at 2:31 PM VP Brand <vp-br...@apache.org> wrote:

> On 06/02/2020 12:36, Konstantin Kolinko wrote:
>
> <snip/>
>
> > This cannot be achieved with the proposed numbering scheme.
>
> Please explain why.
>
> > When I think about numbering schemes such as semver, or used for
> > Maven, or RPM packages, the numbers essentially imply that 10.0.0 and
> > 10.0.1 are binary compatible with only minor changes. When you update
> > a version of a package, version "10.0.1" will silently supersede
> > "10.0.0". But that is not the case here.
>
> We are free to define any release numbering scheme we like. Tomcat has
> never followed semantic versioning and I don't think it ever will
> because of the desire (with the exception of Jakarta EE 9) to have the
> major version follow releases of the Servlet spec.
>
> > It is rather hard to explain to people that "10.0.0" is a separate of
> > branch of development and a separate chain of releases.
>
> It is simply a special case for Jakarta EE 9 because a) we expect
> Jakarta EE 9 to be a transition release and b) it allows us to align
> major Tomcat versions with Jakarta EE versions.
>
> >> The plan was discussed and the final version of it is here:
> https://cwiki.apache.org/confluence/display/TOMCAT/Jakarta+EE+Release+Numbering
> >
> > The page says "10.0.0.Mx" (in step 1, step 2)
>
> There is a typo. I've fixed it. I've also switched to -Mx for milestones
> rather than .Mx for consistency with how Mx is normally used.
>
> > Trying to achieve exact matching between Tomcat version and EE
> > specification version does not really matter. E.g. Tomcat 9.0 is Java
> > EE 8, not 9.
>
> I think it is useful. It helps reduce confusion if they are aligned.
>
> > Thus far my vote is
> >
> > The proposed 10.0.0.0-M1 release is:
> > [x] Broken - do not release
> >
> > because of the numbering scheme.
>
> ACK.
>
> Another point to keep in mind is that we expect Jakarta EE 10 to follow
> on quickly from Jakarta EE 9. If we were to follow our normal numbering
> plan that would mean EOL'ing 7.0.x and 8.5.x in quick succession. I
> think that would be bad for our users.
>
> If we didn't EOL 8.5.x that would leave us supporting 8.5.x, 9.0.x,
> 10.0.x, 11.0.x and 9.11.x - five major versions in parallel compared to
> the current three.
>
> The current approach is the best plan the community has come up with to
> date that enables us to:
> - EOL Jakarta EE 9 support out of sequence
> - continue Java EE 8 support in a 9.x branch where X is meaningful
> - work on Jakarta EE 10 in parallel with Jakarta EE 9 support
>
> If you have an alternative proposal, now is the time to propose it.
>

I agree dedicating the Tomcat 10 branch to Jakarta EE 9 is very bad since
it would be EOLed instantly (no actual users and/or no developer interest
to support it). Plus I like matching the EE number and the Tomcat branch
number.

An option in to do Jakarta EE 9 in 10.0 and Jakarta EE 10 as 10.1. But this
normally also implies some support for 10.0, and at the moment the forecast
is that there will be none.

Another possible option I can think of is to not release that 10.0.0.0 at
all. That means that right now 10.0 is in M mode doing Jakarta EE 9, it
will switch to tracking EE 10 when it starts and remains in M mode until EE
10 is final. Developers who want to migrate to Jakarta can still use these
M builds even though they are not stable, etc.
I don't really like it and would much prefer if, as a simple exception,
people would agree to release that interim 10.0.0.0 ...

Rémy


>
> Mark
>
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