Add notes for 5.2.1 release

Author: markstory

2025/04/06/cakephp_521.rst

@@ -0,0 +1,45 @@
+CakePHP 5.2.1
+==============
+
+The CakePHP core team is happy to announce the immediate availability of CakePHP
+5.2.1. This is a maintenance release for the 5.2 branch that fixes several
+community reported issues and regressions.
+
+Bugfixes
+--------
+
+You can expect the following changes in 5.2.1. See the `changelog
+<https://github.com/cakephp/cakephp/compare/5.2.0...5.2.1>`_ for every commit.
+
+- Column generation in Sqlite preserves commments now.
+- ``BehaviorRegistry::set()`` now updates method and finder mappings.
+- Fixed regression in ``Response::mapType()`` with array parameters.
+- Update documentation for ``Table::buildRules()``.
+- Several methods on ``NumberHelper`` had types widened to allow ``null``. This
+  makes ``NumberHelper`` more ergonomic to use and increases compatibility with
+  code from 4.x.
+- Fixed regression where custom validation methods would have not get
+  ``$context`` passed.
+- Fixed regression in update queries with expressions in the ``SET`` clause.
+
+
+Contributors to 5.2.1
+----------------------
+
+Thank you to all the contributors that submitted a pull request:
+
+- ADmad
+- fabian-mcfly
+- Mark Scherer
+- Mark Story
+- mscherer
+
+As always, we would like to also thank all the contributors that opened issues,
+or updated the documentation.
+
+Download a `packaged release on github
+<https://github.com/cakephp/cakephp/releases>`_.
+
+.. author:: markstory
+.. categories:: release, news
+.. tags:: release, news

master.rst

@@ -4,6 +4,7 @@ Sitemap
 .. toctree::
    :maxdepth: 1
 
+   2025/04/06/cakephp_521
    2025/03/29/cakephp_520
    2025/03/22/cakephp_460
    2025/03/21/cakephp_4510