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Release DataFusion 52.4.0 (minor/) Release (Mar 2026) #20855
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I have a first pass at the potential content above
Possible other issues:
Reacted by Oleks V and HuaijinOk, I made a bunch of backport PRs (with codex's help)
- [branch-52] fix: disable dynamic filter pushdown for non min/max aggregates (#20279) #20877
- [branch-52] fix: maintain inner list nullability for (#19948) #20878
- [branch-52] fix: Ensure columns are casted to the correct names with Unions (#20146) #20879
- [branch-52] fix: interval analysis error when have two filterexec that inner filter proves zero selectivity (#20743) #20880
- [branch-52] fix: Return probe_side.len() for RightMark/Anti count(*) queries (#20710) #20881
I found another regression:
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on Mar 12, 2026 Comet is still seeing SMJ regressions even after upgrading to 52.3. I'm going to benchmark backporting #20478 to 52 and will submit a PR if the numbers look good.
Reacted by Andrew LambSOunds good -- I am still waiting on a few more PRs so there is plenty of time
5 remaining items
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on Mar 18, 2026 There appears to be some sort of SVN issue:
Uploading to datafusion dist/dev to https://dist.apache.org/repos/dist/dev/datafusion/apache-datafusion-52.4.0-rc1 svn: E170013: Unable to connect to a repository at URL 'https://dist.apache.org/repos/dist/dev/datafusion' svn: E120108: Error running context: The server unexpectedly closed the connection.I will try again in a bit
Ok, I made a release candidate and started a voting thread:
I am proactively also considering a new branch-52 release
Release is approved and published: https://lists.apache.org/thread/7bj6gynx25f6yfbwqm1h0m14bo5lov4z
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Is your feature request related to a problem or challenge?
Are several other regressions reported against 52 that we might want to backport to
branch-52that didn't make it into #20681. Let's coordinate on this ticket in case we want to create a new releaseSteps:
Potential Content:
Requested Bug Fixes. Issue / requester / Backport
array_sortfails on list with inner non-nullable field #19947 / @alamb / [branch-52] fix: maintain inner list nullability forarray_sort(#19948) #20878probe_side.len()for RightMark/Anti count(*) queries (#20710) #20881