What's New in the Rust 2024 Edition

Jon and Ben discuss the highlights of the Rust 2024 Edition.

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Timestamps & referenced resources

• [@03:05] - RPIT lifetime capture rules
• [@08:00] - let chains in if and while
  • if let temporary scope
  • Mara’s post on “super let”
  • Tail expression temporary scope
• [@19:15] - Match ergonomics reservations
• [@24:49] - Unsafe extern blocks
• [@29:15] - Unsafe attributes
• [@32:03] - unsafe_op_in_unsafe_fn warning
• [@34:51] - Disallow references to static mut
• [@39:20] - Never type fallback change
• [@43:33] - Macro Fragment Specifiers
• [@47:47] - gen keyword
• [@49:36] - Changes to the prelude
• [@50:32] - Add IntoIterator for Box<[T]>
• [@56:03] - Newly unsafe functions
• [@58:51] - Rust-version aware Cargo resolver
• [@1:03:03] - Cargo table and key name consistency
• [@1:03:57] - Reject unused inherited default-features
• [@1:05:37] - Rustdoc combined doctests
• [@1:07:13] - Rustdoc nested include! change
• [@1:09:19] - The rustfmt style edition

Credits

Intro T