TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _deprecation-85858:
+
+==================================================
+Deprecation: #85858 - GeneralUtility::clientInfo()
+==================================================
+
+See :issue:`85858`
+
+Description
+===========
+
+The helper method :php:`GeneralUtility::clientInfo()` responsible for
+parsing the server variable :php:`$_SERVER['HTTP_USER_AGENT']` has been marked
+as deprecated.
+
+This method is not up-to-date with current browser headers, and in light of
+browser that are able to fake the HTTP_USER_AGENT the detection is not practical
+anymore.
+
+
+Impact
+======
+
+Calling the method directly will trigger a PHP :php:`E_USER_DEPRECATED` error.
+
+
+Affected Installations
+======================
+
+Any TYPO3 installation with extensions directly calling this method.
+
+
+Migration
+=========
+
+Depending on the use-case, it is best to use the PSR-7-based request object,
+if available in the context, or `$_SERVER['HTTP_USER_AGENT']` to detect a
+specific browser/client user agent.
+
+.. index:: PHP-API, FullyScanned, ext:core