Note: we recently released 2.8.8 so the title of this email chain is
wrong. It should read 2..8.9.

While keeping 2.x alive for some time is appealing, the jump from
Storm 2 to 3 is much less complex than the one made from Storm 2 to 3.
Even with master (Storm 3) shipped with Java 25
 We should focus our attention and resources on 3.x, which has quite a
few interesting new additions.
I propose we release 2.8.9 with 3.0.0 and warn the community that 2.x
is EOL and that it's the last release. 2.8.9 contains a few
dependabots upgrades compared to 2.8.8, so it's worth doing.

On Wed, 8 Jul 2026 at 21:48, Gianluca Graziadei
<[email protected]> wrote:
>
> I agree that setting an EOL  for 2.X is a natural next step for the
> project, and options b1 or b2 seem like the best approach.
>
> Cheers,
> Gianluca
>
>
> On Wed, 8 Jul 2026, 10:04 Rui Abreu, <[email protected]> wrote:
>
> > I agree @Richard Zowalla .The sooner the better, to let the community
> > manage expectations
> >
> > Do you want me to set up the vote?
> >
> > On Wed, 8 Jul 2026 at 07:48, Richard Zowalla <[email protected]> wrote:
> > >
> > > Yes. We should open a discussion / vote with different options for
> > EOLing 2.x (since resources to maintain 2.x branches and getting the votes
> > needed for a release are quite sparse).
> > >
> > > Think primary questions for that would be:
> > >
> > > (a) Do we have consensus that such an EOL announcement is long overdue
> > and should be put out rather soonish?
> > > (b) Time of the announcement: Options that I see:
> > > - b1: Directly with the projected release of the 3.0.0 marking it as the
> > last release ever to be expected for OpenNLP 2.x
> > > - b2: Shortly after - with a grace period - for instance End of Year
> > 2026, or similar short ranged targets.
> > > - b3: Mid of year 2027
> > >
> > > Gruß
> > > Richard
> > >
> > > On 2026/07/07 22:44:52 Rui Abreu wrote:
> > > > Created this PR https://github.com/apache/storm/pull/8893 to set the
> > > > baseline as Java 25.
> > > > Additionally, we should vote on setting Apache Storm 2.x as EOL (it is
> > > > only receiving dependabot updates at this point)
> > > >
> > > > Thank you
> > > >
> > > > On Mon, 29 Jun 2026 at 14:34, Richard Zowalla <[email protected]> wrote:
> > > > >
> > > > > +1 on thinking about Java 25 for 3.0.0 rather than just bumping to
> > 21.
> > > > >
> > > > > The reason it is worth it now is the pinning fix: JEP 491
> > ("Synchronize Virtual Threads without Pinning"), delivered in Java 24 and
> > carried into the 25 LTS. Before that, in 21 to 23, a virtual thread that
> > blocked on I/O inside a synchronized block stayed pinned to its carrier
> > thread, and under load that could exhaust the carrier pool and stall
> > progress. That is a real concern for us, because we have a fair amount of
> > synchronized code sitting in exactly the I/O bound paths where you would
> > want to use VTs. On 24/25 the VT unmounts and frees the carrier while it
> > waits, so we would not have to go and rewrite every synchronized block as
> > ReentrantLock first, which is the migration a lot of libraries had to do
> > (MySQL Connector/J, Resilience4j and others). Native/JNI is the one
> > remaining pinning case, but that is narrow.
> > > > >
> > > > > Where this could actually matter in Storm: the places that spend
> > their time waiting rather than computing are the obvious candidates.
> > Netty/transport worker connections, external lookups in bolts (DB, HTTP,
> > cache), and the various ack/metrics/heartbeat paths that talk to
> > ZooKeeper/Nimbus. These are classic thread-per-connection or bounded-pool
> > setups today, and a thread-per-task VT model could simplify them and scale
> > better when a topology fans out to a lot of blocking calls
> > > > > .
> > > > > What we would want to be careful about: the hot path is the
> > executor's disruptor queues and the spout/bolt processing loop, and a lot
> > of that is CPU bound message passing, not blocking I/O, so VTs do not help
> > there and should not be forced in. This is about targeted use in the I/O
> > bound corners, not running everything on virtual threads. We would also
> > want to watch ThreadLocal usage, since Scoped Values (finalised in 25) are
> > the intended replacement and we lean on thread locals in a few spots.
> > > > >
> > > > > So my argument is: if we are doing a new major anyway, baselining
> > 3.0.0 on Java 25 rather than 21 costs us little extra now and saves a
> > second baseline bump later. It also keeps the door open to actually explore
> > VTs in the blocking paths.
> > > > >
> > > > > Realistically it will be a good while before we are in a position to
> > do a Storm 4, so 3.x is where any of this experimentation has to live
> > regardless, and I would rather not start that line on a baseline we already
> > know we will want to move off.
> > > > >
> > > > > I am not saying we commit to adopting VTs in 3.0.0 itself. Just that
> > 25 as the baseline is the enabler, and we can prototype on a branch from
> > there.
> > > > >
> > > > > Gruß
> > > > > Richard
> > > > >
> > > > > On 2026/06/24 13:24:26 Rui Abreu wrote:
> > > > > > Julien,  master is being compiled with JDK 21, but our test
> > pipelines
> > > > > > run both 21 and 25.
> > > > > >
> > > > > > On Wed, 24 Jun 2026 at 10:49, Julien Nioche
> > > > > > <[email protected]> wrote:
> > > > > > >
> > > > > > > Hi Rui,
> > > > > > >
> > > > > > > Are we moving to Java 25 in 3.x?
> > > > > > >
> > > > > > > Thanks
> > > > > > >
> > > > > > > Julien
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > On Mon, 22 Jun 2026 at 14:57, Rui Abreu <[email protected]>
> > wrote:
> > > > > > >
> > > > > > > > Hey folks,
> > > > > > > >
> > > > > > > > We have several good contributions in master and a few more
> > undergoing PRs.
> > > > > > > > I'm keen on releasing 3.0.0 to the community soon. I don't
> > mind at all
> > > > > > > > doing the release.
> > > > > > > >
> > > > > > > > Let me know what you think
> > > > > > > >
> > > > > > > > On Wed, 20 May 2026 at 19:02, Rui Abreu <[email protected]>
> > wrote:
> > > > > > > > >
> > > > > > > > > Totally agree. I would say we should keep merging dependabot
> > PRs into
> > > > > > > > > 2.x for  some months, but only do a release if we have
> > reports of a
> > > > > > > > > bug, like the one we patched in 2.8.8.
> > > > > > > > > Otherwise, 3.0.0 will be the way to go to better utilise our
> > manpower
> > > > > > > > resources.
> > > > > > > > >
> > > > > > > > > On Wed, 20 May 2026 at 18:38, Richard Zowalla <
> > [email protected]> wrote:
> > > > > > > > > >
> > > > > > > > > > Given our current man power it might be beneficial, if we
> > decide on a
> > > > > > > > > > EOL strategy for the 2.x release line before going into
> > 3.x (dropped
> > > > > > > > > > clojure, Java 21 baseline), so we have a clear way on how
> > long we want
> > > > > > > > > > to support the 2.x branch with releases.
> > > > > > > > > >
> > > > > > > > > > Given our slow pace in getting the required votes, we
> > might have an
> > > > > > > > > > issue with maintaing to release lines in parallel over a
> > longer period
> > > > > > > > > > of time. Think we can do that for a few months but not
> > endlessly.
> > > > > > > > > >
> > > > > > > > > > Might be worth a discussion thread on the dev@ list. wdyt?
> > > > > > > > > >
> > > > > > > > > > Am Mittwoch, dem 20.05.2026 um 16:44 +0100 schrieb Rui
> > Abreu:
> > > > > > > > > > > Hello @Richard Zowalla
> > > > > > > > > > >
> > > > > > > > > > > We can consider releasing 3.0.0 over the next week or so.
> > > > > > > > > > >
> > > > > > > > > > > On Sun, 10 May 2026 at 23:09, Rui Abreu <
> > [email protected]> wrote:
> > > > > > > > > > > >
> > > > > > > > > > > > Thanks for the PRs @Richard Zowalla , much appreciated.
> > > > > > > > > > > > I have merged them and dealt with the subsequent
> > dependabot
> > > > > > > > > > > > avalanche.
> > > > > > > > > > > > Apologies if you received a whole bunch of Jenkins
> > errors.
> > > > > > > > > > > > I was using AI + GH client to deal with the dependabot
> > PRs in
> > > > > > > > > > > > batches
> > > > > > > > > > > > and it was being quite helpful, right up until the
> > point and it
> > > > > > > > > > > > decided to merge a few PRs whose tests were still
> > ongoing
> > > > > > > > > > > >
> > > > > > > > > > > >   problematic Merges
> > > > > > > > > > > >    * #8632 (Jersey 4.0.2 upgrade on 2.x)
> > > > > > > > > > > >    * #8615 (Checkstyle 13.4.2 on master)
> > > > > > > > > > > >
> > > > > > > > > > > > Both have been reverted and both master and 2.x are ok.
> > > > > > > > > > > >
> > > > > > > > > > > > I'll create a RC for 2.8.8 during the week.
> > > > > > > > > > > >
> > > > > > > > > > > > On Sun, 10 May 2026 at 17:01, Rui Abreu <
> > [email protected]>
> > > > > > > > > > > > wrote:
> > > > > > > > > > > > >
> > > > > > > > > > > > > Ok, we can hold off on 3.0.0 for now.
> > > > > > > > > > > > > I'll focus on making sure 2.8.8 has the necessary
> > changeset and
> > > > > > > > > > > > > then we can get the RC going.
> > > > > > > > > > > > >
> > > > > > > > > > > > > On Sun, May 10, 2026, 16:58 Richard Zowalla <
> > [email protected]
> > > > > > > > >
> > > > > > > > > > > > > wrote:
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > Hi all,
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > 2.8.8 is fine for me. Guess we need to confirmed
> > dependabot for
> > > > > > > > > > > > > > 2.x branches too (+ license update action)
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > 3.0.0 would need the Java 21 bump before (as
> > discussed in the
> > > > > > > > > > > > > > related discussion - dont know if there are other
> > things like
> > > > > > > > > > > > > > the Jitter RFC stuff for it) - perhaps there is
> > something else.
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > Gruß
> > > > > > > > > > > > > > Richard
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Am 10.05.2026 um 17:13 schrieb Rui Abreu <
> > [email protected]
> > > > > > > > >:
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Hi folks,
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Just trying to understand if you are keen on
> > performing a
> > > > > > > > > > > > > > > release for both
> > > > > > > > > > > > > > > versions shortly
> > > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > *Julien Nioche *
> > > > > > >
> > > > > > >
> > > > > > > digitalpebble.com <http://www.digitalpebble.com/>
> > > > > >
> > > >
> >

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