minor #21564 [Lock] Add support for keys serialization using the Serializer component (alexandre-daubois)

This PR was merged into the 7.4 branch.

Discussion
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[Lock] Add support for keys serialization using the Serializer component

Fix #21389

Commits
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baf0394 [Lock] Add support for keys serialization using the Serializer component

Author: javiereguiluz

components/lock.rst

@@ -128,6 +128,15 @@ example, the kernel will automatically release semaphores acquired by the
 store (see :ref:`lock stores <lock-stores>` for supported stores), an
 exception will be thrown when the application tries to serialize the key.
 
+Locks can be serialized using both the native PHP serialization system
+and its :phpfunction:`serialize` function, or using the Serializer
+component.
+
+.. versionadded:: 7.4
+
+    The support for serializing locks with the Serializer component was
+    introduced in Symfony 7.4.
+
 .. _lock-blocking-locks:
 
 Blocking Locks