What's New in Rust 1.65, 1.66, and 1.67

Rustacean Station

Jon and Ben discuss the highlights of the 1.65, 1.66, and 1.67 releases of Rust.

Contributing to Rustacean Station

Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor!

• Twitter: @rustaceanfm
• Discord: Rustacean Station
• Github: @rustacean-station
• Email: [e-mail]

Timestamps & referenced resources

[@01:11] - Rust 1.65

• [@01:28] - Generic Associated Types
  • More detailed blog post
• [@06:48] - let-else statements
  • if_chain crate
• [@16:56] - break from labeled blocks
• [@19:21] - Splitting Linux debuginfo
• [@20:44] - Stabilized APIs
  • std::backtrace::Backtrace
• [@22:41] - RLS deprecation
• [@23:19] - Changelog deep-dive
  • [@23:30] - Cargo queue reordering
    • Benchmarking results
  • [@24:54] - Niches in data-filled enums
  • [@27:23] - poll_fn and Unpin
  • [@28:05] - Too many personalities
  • [@29:20] - uninit integers are UB
    • Working Group discussion
  • [@33:23] - Uplift let_underscore lint
  • [@35:13] - #[non_exhaustive] on enum variants

[@36:27] - Rust 1.66.0

• [@36:40] - Explicit discriminants on enums with fields
  • Dark and forbidden secrets
  • RFC
• [@40:05] - core::hint::black_box
  • Tracking issue discussion
• [@46:34] - cargo remove
• [@46:52] - Stabilized APIs
  • Mixed integer operations
  • BTreeMap/Set first/last operations
  • std::os::fd
• [@50:51] - Changelog deep-dive
  • [@51:10] - Cargo publish changes
  • [@53:33] - Don’t link to libresolv or libiconv on Darwin
  • [@54:41] - sym in asm
  • [@55:18] - Soundness fix for impl Trait
  • [@57:27] - Allow transmutes across lifetimes
  • [@57:45] - Unicode 15
  • [@58:24] - for loops over Option and Result

[@1:00:38] - Rust 1.66.1

Security advisory.

Affects primarily users with insteadOf in their git config. Prefer pushInsteadOf instead.

You may also be interested in:

• Rustup 1.25.2

[@1:02:41] - Rust 1.67

• [@1:02:45] - #[must_use] on async fn
• [@1:04:07] - sync::mpsc updated
  • Long-standing mpsc panic
  • The PR
  • crossbeam crate
    • CachePadded
    • AtomicCell
• [@1:07:52] - Stabilized APIs
  • NonZero*::BITS
• [@1:08:38] - Changelog deep-dive
  • [@1:08:45] - Ratio-aware decompression limit
    • Original CVE
    • Original fix
  • [@1:10:40] - Ordering of array fields
  • [@1:13:08] - Compilation targets
    • Sony PlayStation 1 target
    • Remove linuxkernel targets
    • Target configuration
    • x86_64-unknown-none
  • [@1:14:45] - Dataflow-based MIR constant propagation
  • [@1:15:37] - The drop order twist
    • The effect on let-chains
    • let-chains tracking issue
  • [@1:20:48] - Inconsistent rounding of 0.5
  • [@1:23:24] - Android NDK update in 1.68
  • [@1:23:54] - Help test cargo’s HTTP protocol

Credits

Intro Theme: Aerocity

Audio Editing: Aerocity

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel