TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _breaking-98032:
+
+=======================================================
+Breaking: #98032 - Serializable Interface fully removed
+=======================================================
+
+See :issue:`98032`
+
+Description
+===========
+
+The :php:`Serializable` interface has been deprecated, and is
+slated for removal entirely in PHP 9. The preferred
+serialization tool is the :php:`__serialize`/:php:`__unserialize`
+method pair.
+
+All serializable classes in TYPO3 Core already implement
+:php:`__serialize`/:php:`__unserialize`, which is automatically
+used by PHP in place of :php:`Serializable`. The now-vestigial
+:php:`Serializable` references have been removed.
+
+Impact
+======
+
+Generally none, unless a text string of an object serialized in TYPO3 v10
+or earlier (using :php:`Serializable`) is deserialized in TYPO3 v12, in
+which case it will not deserialize correctly due to the different
+string format used by :php:`Serializable`. That is extremely unlikely
+to happen.
+
+The use of :php:`Serializable` in extensions is not recommended anymore,
+and will be removed from PHP in version 9.
+
+Affected Installations
+======================
+
+None.
+
+Migration
+=========
+
+None needed.
+
+.. index:: PHP-API, NotScanned, ext:core