TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _deprecation-85687:
+
+==================================================
+Deprecation: #85687 - Deprecate RuntimeCacheWriter
+==================================================
+
+See :issue:`85687`
+
+Description
+===========
+
+The RuntimeCacheWriter was introduced in TYPO3 9.3 and misused the TYPO3 Caching Framework to provide InMemoryLogging
+for the AdminPanel. Instead of having a generic LogWriter in the LoggingFramework this belongs
+to the admin panel scope wise and implementation wise separated from the CachingFramework.
+
+The RuntimeCacheWriter has therefore been deprecated and the AdminPanel will use custom log writers on demand when
+they will become necessary.
+
+
+Impact
+======
+
+Calling RuntimeCacheWriter will trigger a PHP :php:`E_USER_DEPRECATED` error.
+
+
+Affected Installations
+======================
+
+Any installation using the RuntimeCacheWriter.
+
+
+Migration
+=========
+
+Write your own CacheWriter (see `\TYPO3\CMS\Core\Log\Writer\WriterInterface`) or - if you need the exact same
+functionality - copy the old RuntimeCacheWriter to your own extension scope and use it.
+
+.. index:: PHP-API, FullyScanned, ext:adminpanel