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Chapter 5. Changes in Rust 1.71.1 Toolset

Rust Toolset has been updated from version 1.66.1 to 1.71.1 on RHEL 8 and RHEL 9.

Notable changes include:

  • A new implementation of multiple producer, single consumer (mpsc) channels to improve performance.
  • A new Cargo sparse index protocol for more efficient use of the crates.io registry.
  • New OnceCell and OnceLock types for one-time value initialization.
  • A new C-unwind ABI string to enable usage of forced unwinding across Foreign Function Interface (FFI) boundaries.

For detailed information regarding the updates, see the series of upstream release announcements:

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