Is binary format сompatible with MessagePack?

[Konstantin Solovev]

Which binary format used for serialization? Docs says that "BooPickle borrows heavily from both uPickle", which implements MessagePack binary format. It's the same for Boopickle? Could I deserialize binary message from Boopickle from other language?

[Florian Kirmaier]

No, deserializing from another language is very complicated - it's basically a dynamically created binary format.
It doesn't have any guarantee to be compatible with anything - except with itself. This has the advantage that the implementation is very optimized and therefore very fast and small.

[Stephane Landelle]

The encoding is similar to msgpack’s and protobuf’s but not identical, so it’s not compatible.

[Konstantin Solovev]

Thank you guys!

[Rok Kralj]

I have noticed that the binary format is not even compatible with itself (as @FlorianKirmaier claims). Scala 3 and Scala 2 formats are incompatible. Why is this so, and is it intended?

#183