1.64.0

1.64.0 (2022-09-22) #

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Stabilized APIs #

These types were previously stable in std::ffi, but are now also available in core and alloc:

These types were previously stable in std::os::raw, but are now also available in core::ffi and std::ffi:

These APIs are now usable in const contexts:

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Internal Changes #

These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools.