A proposed send expression would enqueue ordered actor work from synchronous code without spinning up a full unstructured Task, generalizing an idea that began with distributed actors.
By rvalueSE-0556 would add Cell, ConstCell, and Volatile primitives, with early debate on naming, library placement, and safety under concurrency and C interop.
By rvalueA proposed #if on minimum OS versions would help shared libraries pick types at compile time, while core engineers call the need a deeper language gap.
By rvalueCVE-2026-43823 could crash processes that parse untrusted RSA keys from DER or PEM data in versions 3.2.0 through 4.5.0.
By rvalueAn early design would collapse the two concepts into targets controlled by visibility rules, seeking to reduce manifest confusion while keeping migration paths open.
By segfaultThe attribute would let the compiler enforce at-most-once calls and reason about closure captures alongside non-copyable types.
By segfaultSE-0539 would let accessor macros promise the compiler that an initializer expression will run only after self is fully available.
By rvalueThe change targets a blocker for public initializers on macro-generated structs without waiting on new synthesis syntax.
By rvalue