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Fail fast + docs around mixing major Scala versions serializing #22004

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Johan Andrén 2017-02-14 12:21:04 +01:00 • committed by GitHub
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akka-docs/rst/scala/serialization.rst
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@ -215,6 +215,18 @@ thread-local variable, so be sure to have it set while deserializing anything
which might contain actor references.
Serialization compatibility
===========================
It is not safe to mix major Scala versions when using the Java serialization as Scala does not guarantee compatibility
and this could lead to very surprising errors.
If using the Akka Protobuf serializers (implicitly with ``akka.actor.allow-java-serialization = off`` or explicitly with
``enable-additional-serialization-bindings = true``) for the internal Akka messages those will not require the same major
Scala version however you must also ensure the serializers used for your own types does not introduce the same
incompatibility as Java serialization does.
External Akka Serializers
=========================