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Release v20.69.3

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@github-actions github-actions released this 03 Aug 15:24
v20.69.3
9993f23
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Learn about vigilant mode.

Summary

Forward-ports the release/20.62.x hotfix (94fc9178) that never landed on main. Without it, every release from 20.63.0 on regressed the fix: deserializing a read model with an interface- or abstract-typed [DerivedType] member bounces between the discriminated interface serializer and the concrete class map's default _t convention until the stack overflows and the process dies with SIGSEGV. This took down Studio production today after it upgraded from 20.62.6 to 20.69.2.

Fixed

  • Deserializing a read model with a polymorphic ([DerivedType]) interface- or abstract-typed member no longer overflows the stack and kills the process — the derived-type discriminator convention is registered for concrete class maps as they are created, and an unresolvable discriminator now throws the catchable CannotResolveConcreteDerivedType instead of recursing

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