All Spark 4.1 related work that I discussed earlier has been merged and is awaiting a release candidate
On Fri, Mar 13, 2026 at 11:48 AM Romain Manni-Bucau <[email protected]> wrote: > Hi all, > > Wonder if we made some progress or if we should fall back on the spark 3 > like compatibility without leveraging new feature just to enable the > community to upgrade Apache Spark? > > Thanks in advance, > > Romain Manni-Bucau > @rmannibucau <https://x.com/rmannibucau> | .NET Blog > <https://dotnetbirdie.github.io/> | Blog <https://rmannibucau.github.io/> | > Old Blog <http://rmannibucau.wordpress.com> | Github > <https://github.com/rmannibucau> | LinkedIn > <https://www.linkedin.com/in/rmannibucau> | Book > <https://www.packtpub.com/en-us/product/java-ee-8-high-performance-9781788473064> > Javaccino founder (Java/.NET service - contact via linkedin) > > > Le mer. 4 févr. 2026 à 19:59, Anton Okolnychyi <[email protected]> a > écrit : > >> Will share the WIP PR for the new version framework by the end of today. >> I will have to then split it into manageable pieces and iterate on still >> failing tests. >> >> пн, 2 лют. 2026 р. о 15:20 Aihua Xu <[email protected]> пише: >> >>> Hi Anton, >>> >>> I want to keep track of this work item for the Iceberg 1.11.0 release. >>> Can you share the status for the work? >>> >>> Thanks, >>> Aihua >>> >>> On Mon, Jan 26, 2026 at 2:55 PM Romain Manni-Bucau < >>> [email protected]> wrote: >>> >>>> Hi Anton, >>>> >>>> Didn't want to say the work done was 1h, I literally meant the fix to >>>> make it work is 1h of work. >>>> I'm not sure I get your opportunity point since deprecating/reworking >>>> fundamentally something might need a new minor of iceberg for end users >>>> IMHO. >>>> >>>> That said happy to test a PR on my use cases (mainly maintenance and >>>> SQL as of today) once you think it is worth it too. >>>> >>>> Romain Manni-Bucau >>>> @rmannibucau <https://x.com/rmannibucau> | .NET Blog >>>> <https://dotnetbirdie.github.io/> | Blog >>>> <https://rmannibucau.github.io/> | Old Blog >>>> <http://rmannibucau.wordpress.com> | Github >>>> <https://github.com/rmannibucau> | LinkedIn >>>> <https://www.linkedin.com/in/rmannibucau> | Book >>>> <https://www.packtpub.com/en-us/product/java-ee-8-high-performance-9781788473064> >>>> Javaccino founder (Java/.NET service - contact via linkedin) >>>> >>>> >>>> Le lun. 26 janv. 2026 à 23:27, Anton Okolnychyi <[email protected]> >>>> a écrit : >>>> >>>>> What may seem like 1 hr of work is actually quite complicated. I am >>>>> sure Manu dedicated a lot of time in setting the new module and validating >>>>> all failed tests, not to mention fixes that were made after testing Spark >>>>> RCs. >>>>> >>>>> Anyway, a new Spark release is always a rare opportunity to >>>>> deprecate/improve something fundamentally. In Spark 4.1, one of these >>>>> things is the new version framework in DSv2 that requires us to rethink a >>>>> large chunk of the connector. We shouldn't rush this. We will see >>>>> pre-requisite PRs this week. Help with reviews is always appreciated. >>>>> >>>>> сб, 17 січ. 2026 р. о 01:02 Romain Manni-Bucau <[email protected]> >>>>> пише: >>>>> >>>>>> Hi JB, >>>>>> >>>>>> As said it is 100% an user standpoint and since enbling it is >>>>>> literally 1h I think it is worth if next week is missed but still happy >>>>>> to >>>>>> avoir. >>>>>> >>>>>> >>>>>> Romain Manni-Bucau >>>>>> @rmannibucau <https://x.com/rmannibucau> | .NET Blog >>>>>> <https://dotnetbirdie.github.io/> | Blog >>>>>> <https://rmannibucau.github.io/> | Old Blog >>>>>> <http://rmannibucau.wordpress.com> | Github >>>>>> <https://github.com/rmannibucau> | LinkedIn >>>>>> <https://www.linkedin.com/in/rmannibucau> | Book >>>>>> <https://www.packtpub.com/en-us/product/java-ee-8-high-performance-9781788473064> >>>>>> Javaccino founder (Java/.NET service - contact via linkedin) >>>>>> >>>>>> Le sam. 17 janv. 2026, 06:21, Jean-Baptiste Onofré <[email protected]> >>>>>> a écrit : >>>>>> >>>>>>> Hi Romain >>>>>>> >>>>>>> I'm not in favor of 1.10.2 with Spark 4.1 support. >>>>>>> >>>>>>> As I think we are pretty close to having the cleanup/enhancement >>>>>>> done on main, by chance, it will be included in 1.11.0, so worth to wait >>>>>>> for it. >>>>>>> >>>>>>> Regards >>>>>>> JB >>>>>>> >>>>>>> On Fri, Jan 16, 2026 at 10:06 PM Romain Manni-Bucau < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> @Steven sure, my point was just that delaying Spark 4.1 support to >>>>>>>> get new feature can not be the best so branch latest 1.10 tag and just >>>>>>>> fixing the 2-3 compilation issues to get a 1.10.2 and Spark 4.1 >>>>>>>> working can >>>>>>>> be an intermediate step. >>>>>>>> >>>>>>>> let's see next week what Anton comes back with :) >>>>>>>> >>>>>>>> Romain Manni-Bucau >>>>>>>> @rmannibucau <https://x.com/rmannibucau> | .NET Blog >>>>>>>> <https://dotnetbirdie.github.io/> | Blog >>>>>>>> <https://rmannibucau.github.io/> | Old Blog >>>>>>>> <http://rmannibucau.wordpress.com> | Github >>>>>>>> <https://github.com/rmannibucau> | LinkedIn >>>>>>>> <https://www.linkedin.com/in/rmannibucau> | Book >>>>>>>> <https://www.packtpub.com/en-us/product/java-ee-8-high-performance-9781788473064> >>>>>>>> Javaccino founder (Java/.NET service - contact via linkedin) >>>>>>>> >>>>>>>> >>>>>>>> Le ven. 16 janv. 2026 à 20:28, Steven Wu <[email protected]> a >>>>>>>> écrit : >>>>>>>> >>>>>>>>> Romain, patch releases (like 1.10.2) are only for bug fixes. New >>>>>>>>> features (like Spark 4.1) would have to happen in minor version >>>>>>>>> releases >>>>>>>>> (like 1.11.0) >>>>>>>>> >>>>>>>>> On Mon, Jan 12, 2026 at 9:22 AM Romain Manni-Bucau < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> Ok, good news Anton, if it is longer than expected (hoping not) >>>>>>>>>> maybe a 1.10.2 with the new module be a compromise, impatient to get >>>>>>>>>> your >>>>>>>>>> feedback next week. >>>>>>>>>> >>>>>>>>>> Thanks for the hard work. >>>>>>>>>> >>>>>>>>>> Romain Manni-Bucau >>>>>>>>>> @rmannibucau <https://x.com/rmannibucau> | .NET Blog >>>>>>>>>> <https://dotnetbirdie.github.io/> | Blog >>>>>>>>>> <https://rmannibucau.github.io/> | Old Blog >>>>>>>>>> <http://rmannibucau.wordpress.com> | Github >>>>>>>>>> <https://github.com/rmannibucau> | LinkedIn >>>>>>>>>> <https://www.linkedin.com/in/rmannibucau> | Book >>>>>>>>>> <https://www.packtpub.com/en-us/product/java-ee-8-high-performance-9781788473064> >>>>>>>>>> Javaccino founder (Java/.NET service - contact via linkedin) >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Le lun. 12 janv. 2026 à 17:54, Anton Okolnychyi < >>>>>>>>>> [email protected]> a écrit : >>>>>>>>>> >>>>>>>>>>> We already have a module for Spark 4.1 in main. That said, Spark >>>>>>>>>>> 4.1 has introduced substantial improvements in table lifecycle that >>>>>>>>>>> should >>>>>>>>>>> let us remove some legacy hacks that may cause data correctness >>>>>>>>>>> issues. >>>>>>>>>>> Given that this work may result in some properties being no longer >>>>>>>>>>> supported, we can do that only in the first Iceberg release for >>>>>>>>>>> Spark 4.1. >>>>>>>>>>> I would strongly oppose releasing support for Spark 4.1 prior to >>>>>>>>>>> embracing >>>>>>>>>>> the new version framework in DSv2. >>>>>>>>>>> >>>>>>>>>>> Good news, it still shouldn't take too long. I am working on a >>>>>>>>>>> prototype as we speak. It should be available next week. >>>>>>>>>>> >>>>>>>>>>> - Anton >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> пн, 12 січ. 2026 р. о 07:33 Romain Manni-Bucau < >>>>>>>>>>> [email protected]> пише: >>>>>>>>>>> >>>>>>>>>>>> Hi everyone, >>>>>>>>>>>> >>>>>>>>>>>> I wonder if you do have some plan to release Iceberg 1.11 (I >>>>>>>>>>>> assume next one?) with Spark 4.1 support. >>>>>>>>>>>> The datasource v2 API breakage was very localized but is just >>>>>>>>>>>> blocking to upgrade and some spark 4.1 features are game changers >>>>>>>>>>>> (like the >>>>>>>>>>>> SQL enhancement) so I'm really looking forward being able to move >>>>>>>>>>>> on it >>>>>>>>>>>> with iceberg support. >>>>>>>>>>>> If you need some help please let me know. >>>>>>>>>>>> >>>>>>>>>>>> Romain Manni-Bucau >>>>>>>>>>>> @rmannibucau <https://x.com/rmannibucau> | .NET Blog >>>>>>>>>>>> <https://dotnetbirdie.github.io/> | Blog >>>>>>>>>>>> <https://rmannibucau.github.io/> | Old Blog >>>>>>>>>>>> <http://rmannibucau.wordpress.com> | Github >>>>>>>>>>>> <https://github.com/rmannibucau> | LinkedIn >>>>>>>>>>>> <https://www.linkedin.com/in/rmannibucau> | Book >>>>>>>>>>>> <https://www.packtpub.com/en-us/product/java-ee-8-high-performance-9781788473064> >>>>>>>>>>>> Javaccino founder (Java/.NET service - contact via linkedin) >>>>>>>>>>>> >>>>>>>>>>>
