Hi all,
The latest commits from the main branch have been integrated into the 
REL_2_STABLE branch via cherry-pick. All CI checks passed. Would appreciate 
more reviews and feedback from the community before moving
forward.

Best, wei han
> From: "Dianjin Wang"<[email protected]>
> Date:  Tue, Jan 13, 2026, 18:02
> Subject:  Re: [DISCUSS] Apache Cloudberry 2.1.0 release
> To: "[email protected]"<[email protected]>
> Hi all,
> 
> Quick update on PR #1522: the binary swap test is now passing
> successfully in CI, and the current results look good. Would
> appreciate more reviews and feedback from the community before moving
> forward.
> 
> PR link: https://github.com/apache/cloudberry/pull/1522.
> 
> Thanks a lot for your time and help!
> 
> Best,
> Dianjin Wang
> 
> On Fri, Jan 9, 2026 at 10:16 AM Dianjin Wang <[email protected]> wrote:
> >
> > Hi,
> >
> > The PR is still in progress and needs more work. Thanks for your comment. I 
> > will share more details on GitHub.
> >
> > For introducing commits from main to REL_2_STABLE, both approaches sound 
> > workable. Your way is more efficient than cherry-picking and keeps the 
> > commit SHA unchanged. Maybe we can try your way first. Only a few commits 
> > need to be reverted or updated. (The breakable PRs were labeled, so they 
> > were figured out more easily.)
> >
> >
> > On Friday, January 9, 2026, Leonid Borchuk <[email protected]> wrote:
> >>
> >>  Hi!
> >>
> >> +1 for the catalog compatibility check.
> >>
> >> Also, I see you have created 
> >> https://github.com/apache/cloudberry/pull/1522,
> >> where we can check if all the tests pass for both old and new binaries. 
> >> This
> >> should check both the catalog compatibility and correct working with stored
> >> data.
> >>
> >> By the way, I realized that you proposed cherry-picking a set (series) of
> >> commits from the main branch to the REL_2_STABLE.
> >>
> >> I used to want to save effort and thought we could sync the main with
> >> REL_2_STABLE and then revert commits breaking catalog compatibility. But
> >> it's hard to implement, and there may be several such commits. And we
> >> should create a reverting commit(s) (which could be challenging).
> >>
> >> So, your proposal for cherry-picking commits is more appealing to me. And 
> >> we
> >> could also check them in the workflow and make sure everything works as
> >> expected. Let's do it this way.
> >>
> >> WBW, Leonid.
> >>
> >> On Tue, Jan 6, 2026 at 6:31 AM Dianjin Wang <[email protected]> wrote:
> >>
> >> > Hi all,
> >> >
> >> > Happy New Year, and best wishes for 2026! 🎉
> >> >
> >> > I’d like to follow up on the earlier thread and suggest that we
> >> > revisit the discussion about the Apache Cloudberry 2.1.0 release. From
> >> > a user perspective, having a 2.1 release on top of 2.0 is quite
> >> > important, as it allows users to benefit from incremental improvements
> >> > and bug fixes without waiting too long for a larger release.
> >> >
> >> > To move this forward, I think there are two key points we should align 
> >> > on:
> >> >
> >> > 1. CI coverage for the `REL_2_STABLE` branch
> >> >
> >> > We should invest in proper CI for the release branch. For changes
> >> > flowing from `main` to `REL_2_STABLE`, it may be safer to go through
> >> > PRs rather than direct pushes, so that changes are visible and
> >> > properly validated.
> >> >
> >> > From an implementation standpoint, we can likely reuse most (or all)
> >> > of the existing CI workflows from main by simply extending them to
> >> > also run on the release branch.
> >> >
> >> > 2. Upgrade path from 2.0 to 2.1
> >> >
> >> > As discussed before, we should ensure that users can upgrade from 2.0
> >> > to 2.1 as smoothly as possible. Ideally, this means supporting a
> >> > direct binary-replacement-style upgrade, without data migration.
> >> >
> >> > To gain confidence here, we may need to establish something similar to
> >> > an ABI (or catalog compatibility) testing mechanism, so we can clearly
> >> > define and validate the upgrade guarantees we provide.
> >> >
> >> > Glad to hear everyone’s thoughts on these points and whether it makes
> >> > sense. Looking forward to the discussion.
> >> >
> >> > BTW, we can certainly continue this discussion into next week to allow
> >> > everyone time to catch up after the New Year holidays.
> >> >
> >> > Best,
> >> > Dianjin Wang
> >> >
> >> > On Wed, Oct 22, 2025 at 8:42 PM Lirong Jian <[email protected]> wrote:
> >> > >
> >> > > Yes, we definitely should have a 2.1 release with all bug fixes and
> >> > > improvements except those related to catalog changes, since the branch
> >> > > associated with the 2.0.0 version is sort of too old.
> >> > >
> >> > > Best,
> >> > > Lirong
> >> > >
> >> > >
> >> > > Dianjin Wang <[email protected]> 于2025年10月21日周二 15:58写道:
> >> > >
> >> > > > On Mon, Oct 20, 2025 at 11:50 PM Leonid Borchuk 
> >> > > > <[email protected]>
> >> > > > wrote:
> >> > > > >
> >> > > > > Indeed, ./postgres --catalog-version for 2.0.0-incubating takes us
> >> > > > > Catalog version number:               302502091
> >> > > > >
> >> > > > > while current HEAD - 302509031
> >> > > > >
> >> > > > > So it's impossible to migrate from 2.0.0 to the current HEAD. Users
> >> > > > should
> >> > > > > create a new cluster and then use cbcopy to move all data. Which is
> >> > not a
> >> > > > > minor change.
> >> > > > >
> >> > > > > Maybe we should create 2.1 without changes in catalog and then 
> >> > > > > merge
> >> > all
> >> > > > > our fixes and release version 3.0 ?
> >> > > >
> >> > > > Yes, the main branch catalog has been changed. The version has been
> >> > > > bumped to 3.0.0 in the main.
> >> > > >
> >> > > > Additionally, I believe that one goal of the 2.1 release is to allow
> >> > > > users to upgrade their 2.0 simply by swapping the binary, without
> >> > > > requiring data migration.
> >> > > >
> >> > > > ---------------------------------------------------------------------
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> >> > > >
> >> > > >
> >> >
> >> > ---------------------------------------------------------------------
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> >> >
> >> >
> >
> >
> >
> > --
> >
> >
> > Best,
> > Dianjin Wang
> >
> 
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