[Amendment] SE-0519: `Ref` and `MutableRef` types for safe, first-class references

Evolution Announcements
1

Hi all,

The LSG has accepted a small amendment to the recently-approved SE-0519, introducing some obvious conformances that were missing from the proposal text:

  • Ref and MutableRef conditionally conform to Sendable when the target
    Value type is Sendable

  • Ref is always BitwiseCopyable.

    Doug Gregor
    Review Manager

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