mbutrovich commented on code in PR #135:
URL: https://github.com/apache/datafusion-site/pull/135#discussion_r2708749738
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content/blog/2026-01-08-datafusion-52.0.0.md:
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@@ -0,0 +1,393 @@
+---
+layout: post
+title: Apache DataFusion 52.0.0 Released
+date: 2026-01-08
+author: pmc
+categories: [release]
+---
+
+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements. See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+{% endcomment %}
+-->
+
+[TOC]
+
+We are proud to announce the release of [DataFusion 52.0.0]. This post
highlights
+some of the major improvements since [DataFusion 51.0.0]. The complete list of
+changes is available in the [changelog]. Thanks to the [121 contributors] for
+making this release possible.
+
+TODO: confirm the release date for 52.0.0 and update the front matter if
needed.
+
+[DataFusion 52.0.0]: https://crates.io/crates/datafusion/52.0.0
+[DataFusion 51.0.0]:
https://datafusion.apache.org/blog/2025/11/25/datafusion-51.0.0/
+[changelog]:
https://github.com/apache/datafusion/blob/branch-52/dev/changelog/52.0.0.md
+[120 contributors]:
https://github.com/apache/datafusion/blob/branch-52/dev/changelog/52.0.0.md#credits
+
+## Performance Improvements 🚀
+
+We continue to make significant performance improvements in DataFusion. This
+release includes faster `CASE` expressions (see below), a new SortMergeJoin,
+automatic caching of metadata, statistics, and listing results for
ListingTable,
+improved hashing and grouping performance for string types, and string function
+optimizations.
+
+
+### Performance Chart (TODO)
+
+TODO: add the 52.0.0 performance chart and update the caption.
+
+<img
+src="/blog/images/datafusion-52.0.0/performance_over_time_clickbench.png"
+width="100%"
+class="img-responsive"
+alt="Performance over time"
+/>
+
+**Figure 1**: TODO: update caption for 52.0.0 benchmarking results.
+
+
+### Faster `CASE` expression evaluation
+
+DataFusion 52 completes major work from the CASE performance epic ([#18075]).
Review Comment:
```suggestion
DataFusion 52 completes major work from the `CASE` performance epic
([#18075]).
```
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