Thanks Michael for reverting the changes.
I think we should do the reversion also on the main branch, and later
introduce Lucene94 Codecs; otherwise I think it would be more difficult for
us to apply changes from main to branch_9x if they diverge so much.

On Thu, Jul 21, 2022 at 9:18 AM Michael Sokolov <msoko...@gmail.com> wrote:

> OK, I reverted the commit that introduced 93 codec on branch_9x and
> branch_9_3. I guess it should probably get reverted on main too, but
> since we have PRs that depend on it I wasn't sure if maybe we'd want
> to rename to 94 instead of reverting? Anyway either way is fine by me.
>
> On Wed, Jul 20, 2022 at 7:21 PM Mayya Sharipova
> <mayya.sharip...@elastic.co.invalid> wrote:
> >
> > Hi Julie,
> > thanks for raising this point, I was also thinking about it.
> > I think it would be valuable to clarify what constitutes the format
> changes. Is on disk changes a necessary requirement for it? Or is it enough
> that codec readers and writers change their behaviour?
> >
> > For example, for LUCENE-10592, there are extensive changes about how
> codec readers and writers behave, while the format on disk stays the same.
> > Specifically for the release 9.3, Alessandro also introduced some
> changes to codec readers while the format on disk stayed the same.
> >
> >
> >
> >
> > On Wed, Jul 20, 2022 at 4:22 PM Julie Tibshirani <juliet...@gmail.com>
> wrote:
> >>
> >> Hello everyone,
> >>
> >> We had preemptively created a Lucene93Codec to support the vector
> search changes (Mike's work in LUCENE-10577, Mayya's work in LUCENE-10592).
> However neither of these changes made it for 9.3, so there have not been
> any real format changes-- Lucene93Codec is the same as Lucene92Codec.
> Should we remove Lucene93Codec on branch_9_3 (effectively reverting
> https://github.com/apache/lucene/pull/924) ?
> >>
> >> Julie
> >>
> >> On Tue, Jul 19, 2022 at 11:02 AM Mayya Sharipova <
> mayya.sharip...@elastic.co.invalid> wrote:
> >>>
> >>> Thanks Adrien, it is indeed a big change, also would be nice to see
> benchmarks after it is merged.
> >>>
> >>> So, Ignacio, please don't wait for LUCENE-10592, we will not be able
> to make it for tomorrow.
> >>>
> >>> On Tue, Jul 19, 2022 at 10:38 AM Adrien Grand <jpou...@gmail.com>
> wrote:
> >>>>
> >>>> While I can understand the excitement about LUCENE-10592, it's also a
> big change, maybe we should not even try to get it in before cutting the
> branch?
> >>>>
> >>>> On Tue, Jul 19, 2022 at 4:09 PM Mayya Sharipova <
> mayya.sharip...@elastic.co.invalid> wrote:
> >>>>>
> >>>>> Thanks for the reminder about the release, Ignacio!
> >>>>> About LUCENE-10592  I will see what progress we can make today, and
> will let you know before Wednesday at 9:00 CEST.
> >>>>>
> >>>>> On Tue, Jul 19, 2022 at 7:12 AM Michael Sokolov <msoko...@gmail.com>
> wrote:
> >>>>>>
> >>>>>> Thanks for checking, but please don't wait for LUCENE-10577. It's
> not clear when that might get resolved
> >>>>>>
> >>>>>> On Mon, Jul 18, 2022, 10:42 AM Ignacio Vera <iver...@gmail.com>
> wrote:
> >>>>>>>
> >>>>>>> Just a quick reminder I plan to cut the 9.3 branch this Wednesday
> at 9:00 CEST. Let me know if there is any issue.
> >>>>>>>
> >>>>>>> @Mike: I see that LUCENE-10577 is still under API discussions, Do
> you think it will make it to the release? LUCENE-10592  seems to have made
> good progress, would you think it will be ready?
> >>>>>>> @Nick: I gave you feedback on the PR. I think it is way too risky
> to add an encoding in a rush. I recommend adding the change in the sandbox
> if you want to iterate in there or wait for another release where there is
> more time to think through the encoding.
> >>>>>>>
> >>>>>>> Cheers,
> >>>>>>>
> >>>>>>> Ignacio
> >>>>>>>
> >>>>>>> On Wed, Jul 13, 2022 at 2:09 AM Nicholas Knize <nkn...@gmail.com>
> wrote:
> >>>>>>>>
> >>>>>>>> I'd like to get ShapeDocValuesField in for the 9.3 release (
> https://issues.apache.org/jira/browse/LUCENE-10654). It's a nice feature
> for enabling facets and aggregations over XYShape and LatLonShape field
> types and could make for a good 9.3 geo highlight.
> >>>>>>>>
> >>>>>>>> Nicholas Knize, Ph.D., GISP
> >>>>>>>> Principal Engineer - Search  |  Amazon
> >>>>>>>> Apache Lucene PMC Member and Committer
> >>>>>>>> nkn...@apache.org
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> On Tue, Jul 12, 2022 at 2:50 PM Ignacio Vera <iver...@gmail.com>
> wrote:
> >>>>>>>>>
> >>>>>>>>> Thanks for the heads up, I am planning to cut the brunch middle
> next week, Wednesday July 20th.
> >>>>>>>>> Let me know at the beginning of next week if there is any issue
> from your side.
> >>>>>>>>>
> >>>>>>>>> cheers,
> >>>>>>>>>
> >>>>>>>>> Ignacio
> >>>>>>>>>
> >>>>>>>>> On Mon, Jul 11, 2022 at 4:21 PM Michael Sokolov <
> msoko...@gmail.com> wrote:
> >>>>>>>>>>
> >>>>>>>>>> I would like to see if we can get
> >>>>>>>>>> https://issues.apache.org/jira/browse/LUCENE-10577 in. It is
> working
> >>>>>>>>>> and gives nice gains, but there is some controversy about the
> API. If
> >>>>>>>>>> we can't get it sorted out this week(?) it can certainly slip
> to the
> >>>>>>>>>> next revision. I know that
> >>>>>>>>>> https://issues.apache.org/jira/browse/LUCENE-10592 is also
> baking and
> >>>>>>>>>> has a PR that seems to be progressing rapidly.
> >>>>>>>>>>
> >>>>>>>>>> On Mon, Jul 11, 2022 at 10:03 AM Ignacio Vera <
> iver...@gmail.com> wrote:
> >>>>>>>>>> >
> >>>>>>>>>> > Hello!
> >>>>>>>>>> >
> >>>>>>>>>> > Lucene 9.2.0 was released around 2 months ago and we are
> accumulating a good bunch of new features, optimizations and bug fixes.
> Would there be support for releasing Lucene 9.3 soon?
> >>>>>>>>>> >
> >>>>>>>>>> > I am happy being the release manager. I did not see any
> issues marked "blocker", but please let me know if there are any.
> >>>>>>>>>> >
> >>>>>>>>>> > Thanks,
> >>>>>>>>>> >
> >>>>>>>>>> >  Ignacio
> >>>>>>>>>>
> >>>>>>>>>>
> ---------------------------------------------------------------------
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> >>>>>>>>>> For additional commands, e-mail: dev-h...@lucene.apache.org
> >>>>>>>>>>
> >>>>
> >>>>
> >>>> --
> >>>> Adrien
>
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