WIP: DataFusion 52 release post #135
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mbutrovich
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Jan 12, 2026
| We continue to make significant performance improvements in DataFusion, both in | ||
| the core engine and in the Parquet reader. This release includes faster `CASE` | ||
| expressions, better hash performance for string types, and continued string | ||
| function optimizations. |
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Nice -- thank you
I'll update this as well
I hope to polish this PR over the next day or two
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52.0.0release datafusion#1969152.0.0(Dec 2025 / Jan 2026) datafusion#18566This is a draft of the DataFusion 52 release post
See rendered preview: https://datafusion.staged.apache.org/blog/2026/01/08/datafusion-52.0.0/
This was initially created using coded. Commands below
Details
We are going to write a blog post for the DataFusion 52.0.0 release
We need to cover the major features in this release. If you are unsure of any content, please leave a "TODO" note in the text and we can fill it in
later.
Please start with a copy of the previous post as a starting point: content/blog/2025-11-25-datafusion-51.0.0.md and update as needed.
The changelog is here: https://github.com/xudong963/arrow-datafusion/blob/update_version/dev/changelog/52.0.0.md
The list of major features can be found in apache/datafusion#18566 under the section "Features to mention in the blog
(if they make it)". Only include the ones that made it into the release, with a checkmark.
Please
example where possible.