TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _breaking-88643:
+
+=============================================================
+Breaking: #88643 - Removed swiftmailer/swiftmailer dependency
+=============================================================
+
+See :issue:`88643`
+
+Description
+===========
+
+TYPO3's dependency swiftmailer has been removed in favor of new symfony-based
+components "mime" and "mailer".
+
+This means that all SwiftMailer-related PHP code has been removed.
+
+
+Impact
+======
+
+Custom SwiftMailer plugins or transports cannot be used without further
+migration anymore and will result in a fatal :php:`E_ERROR`.
+
+Using SwiftMailer-specific API by using TYPO3's :php:`TYPO3\CMS\Core\Mail\MailMessage` class might result
+in fatal :php:`E_ERROR` when sending out emails.
+
+
+Affected Installations
+======================
+
+Any TYPO3 installation with third-party extension sending out emails or extending
+TYPO3's email sending capabilities.
+
+
+Migration
+=========
+
+Search the third-party extensions' code for occurrences of MailMessage or
+parts starting with `\Swift_` and migrate to symfony/mime or symfony/mailer
+APIs, which are included in TYPO3 v10.0.
+
+If required, SwiftMailer code can be installed via composer (when running TYPO3 via composer)
+via `composer require swiftmailer/swiftmailer`.
+
+.. index:: PHP-API, NotScanned, ext:core