Swift 6 Concurrency and Cuckoo: Inheritance meets Sendable final classes

[alexdm-e2n]

Hi all,

I migrated our first project to Swift 6 and one change with the new concurrency model is, that Sendable classes have to be final.

As Cuckoo uses inheritance this seems to me as a very common issue that we have to declare our classes as @unchecked Sendable which effectively means disabling all concurrency compiler checks for this type.

Are there other ideas how a workaround might look like or are there any ideas how to integrate Cuckoo with the Swift-6 concurrency model in the future?

Regards,
Alexander