ok, I reviewed every differences between master and maven-site-plugin-3.x, and 
I backported every change to master that was missing

now, remaining differences between these 2 branches is only .asf.yaml and 
release drafter conf (+ pom.xml, as expected) = what is normal to match branch 
names

It's now time to drop existing master and replace it with 
maven-site-plugin-3.x: I don't know precisely how to do that, help welcome 
(perhaps with infra, as master branch protection may block such sensitive 
exceptional actions)

Regards,

Hervé

On 2026/04/01 06:53:48 Hervé Boutemy wrote:
> there has been a large confusion in the past between the meaning of 4.0.0-M* 
> (associated to Doxia 2.0.0-M*) and later 4 meaning "Maven 4"
> 
> we'll have to sort that out by hand
> 
> I don't think working at Git commit level will help much: diff on content 
> will 
> be IMHO simpler
> 
> I just tried to create a tar file for both branches (reproducible to avoid 
> timestamp noise) and diffoscope them: the result is IMHO small enough
> 
> FYI, the command to create the tar:
> tar --exclude='./.git' --sort=name \
>      --mtime="@0" \
>      --owner=0 --group=0 --numeric-owner \
>      --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime \
>      -cf ../maven-site-plugin.tar .
> 
> diffoscope then gives the list of files to review and see what we should 
> bring 
> to the 3.x branch before it replaces master
> => with a few PRs to review to 3.x, we should be clear
> 
> Regards,
> 
> Hervé
> 
> Le mardi 31 mars 2026, 19:38:04 CEST Konrad Windszus a écrit :
> > Which commits in master are not compatible with Maven 3? Why have you only
> > cherry-picked some for the last release?
> > 
> > I don't think anyone else is able to quickly decide which ones were left out
> > deliberately vs which ones were missed, so it would be much appreciated if
> > you could do that cleanup work. Can you dedicate some time?
> > 
> > The longer we wait the more challenging the cleanup...
> > 
> > Thanks,
> > Konrad
> > 
> > On 2026/03/28 18:27:26 Michael Osipov wrote:
> > > On 2026/03/28 09:44:08 Konrad Windszus wrote:
> > > > Hi,
> > > > I see that we have the following long living branches in
> > > > maven-site-plugin
> > > > 
> > > > 1. Master (currently version is still at 4.0.0-M17-SNAPSHOT for
> > > > historical reasons but this should be targeting the next 3.x release
> > > > IMHO) 2. maven-site-plugin-3.x
> > > > 
> > > > However both branches deviate quite a lot:
> > > > https://github.com/apache/maven-site-plugin/compare/master...maven-site
> > > > -plugin-3.x.
> > > > 
> > > > Can someone clarify why we need two different ones, and what is the
> > > > version which should be built from master?> 
> > > It shouldn't. I had a private discussion with hboutemy@ about this as
> > > well. Let me lay out what has been done:
> > > 
> > > When I started the work on Doxia 2 I has to seperate the plugin between a
> > > working release and a milestone release train. I have chosen 4.x-My as a
> > > compromise to denote that to our users. Over tme (3+ years) when the all
> > > milestones were implemented I have cherry-picked ALL necessary commits to
> > > 3.x and released as 3.20+. I have retained master as a future branch for
> > > Maven 4 since there are issue with it on 3.x. I haven't touched master
> > > since then after the Doxia 2.0 GA. Except a few updates the branch is
> > > abandoned. I am a bit suprised why the diff is so huge, it makes no
> > > sense.
> > > 
> > > What needs to be done:
> > > * Identify all commits on master which aren't on 3.x
> > > * Review them
> > > * Pick as necessary
> > > * Request hard reset on master to 3.x
> > > * Perform a release (optional)
> > > 
> > > Maven 4.x compat should be done in a separate branch, not in mastesr.
> > > 
> > > Michael
> > > 
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> 
> 
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