Rust 2024 Edition

[nikomatsakis]

Metadata
Owner(s)	@traviscross
Team(s)	lang, leadership-council, types
Goal document	2024h2/Rust-2024-Edition

Summary

Feature complete status for Rust 2024, with final release to occur in early 2025.

For details, see the tracking issue:

• Tracking Issue for RFC 3501: Edition 2024 rust#117258

[nikomatsakis]

This issue is intended for status updates only.

For general questions or comments, please contact the owner(s) directly.

[traviscross]

The edition is on track to ship on schedule:

Date	Version	Edition stage
2024-09-05	Release v1.81	Checking off items...
2024-10-11	Branch v1.83	Go / no go on all items
2024-10-17	Release v1.82	Rust 2024 nightly beta
2024-11-22	Branch v1.84	Prepare to stabilize...
2024-11-28	Release v1.83	Stabilize Rust 2024 on master
2025-01-03	Branch v1.85	Cut Rust 2024 to beta
2025-01-09	Release v1.84	Announce Rust 2024 is pending!
2025-02-20	Release v1.85	Release Rust 2024

All lang priority items have landed and are fully ready for Rust 2024:

• Tracking Issue for Lifetime Capture Rules 2024 (RFC 3498) rust#117587
  • Tracking issue for precise_capturing syntax rust#123432
• Tracking Issue for Rust 2024: Reserve gen keyword rust#123904
• Tracking Issue for Rust 2024: Make ! fall back to ! rust#123748

Nine other items are fully ready for Rust 2024:

• Tracking Issue for Rust 2024: Make missing_fragment_specifier an error rust#128143
• Tracking Issue for Rust 2024: Make std::env::{set_var, remove_var} unsafe rust#124866
• Tracking Issue for Rust 2024: Rustdoc tests in one binary rust#124853
• Tracking Issue for Rust 2024: Make unsafe_op_in_unsafe_fn warn-by-default rust#123916
• Tracking Issue for Rust 2024: Box<[T]>: IntoIter rust#123759
• Tracking Issue for RFC 3325: unsafe attributes rust#123757
• Tracking Issue for Rust 2024: Cargo deprecations rust#123754
• Tracking Issue for RFC 3484: Unsafe Extern Blocks rust#123743
• Tracking Issue for the 2024 prelude rust#121042

There are currently 10 items that are close to ready, often with only documentation remaining.

There are currently 6 items that still need implementation work. Some of these are rather close to ready also.

There will be items that are currently tracked for the edition that will not make it. That's OK, and we still plan to ship the edition on time and without those items.

Overall, the edition work is going well. We have good communication with each of the item owners and with the relevant teams.

For more details, see the tracking issue for the Rust 2024 edition:

• Tracking Issue for RFC 3501: Edition 2024 rust#117258