TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _breaking-82296:
+
+====================================================
+Breaking: #82296 - Removed constant TYPO3_user_agent
+====================================================
+
+See :issue:`82296`
+
+Description
+===========
+
+The unused PHP constant :php:`TYPO3_user_agent` containing information of the User Agent string sent
+for requests by TYPO3, has been removed.
+
+
+Impact
+======
+
+Calling the constant will result in a PHP fatal error.
+
+
+Affected Installations
+======================
+
+TYPO3 installations with third-party extensions that make use of the PHP constant.
+
+
+Migration
+=========
+
+The extension scanner checks if the constant is used.
+
+Any extension authors are encouraged to use php:`$GLOBALS['TYPO3_CONF_VARS']['HTTP']['headers']['User-Agent']`
+instead.
+
+.. index:: PHP-API, FullyScanned