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wire 2026-08-22
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Rust rolls 20 PRs into main while rustfmt fixes brace placement

By RepoJournal · Filed · About Rust · Composed from the cited sources · methodology

bors Jacob Pratt jyn514 Kobzol subotac Sandijigs apiraino
11 people shipped this
bors @bors 3 cited Jacob Pratt @jhpratt 2 cited jyn514 @jyn514 1 cited Kobzol @Kobzol 1 cited subotac @subotac 1 cited Sandijigs @Sandijigs 1 cited apiraino @apiraino 许杰友 Jieyou Xu (Joe) @jieyouxu Tshepang Mbambo @tshepang ada4a @ada4a Yacin Tmimi @ytmimi

The Rust compiler landed a massive 20-PR rollup overnight, and rustfmt corrected a brace-placement bug that affects Style Edition 2027.

The Rust compiler merged a 20-PR rollup [1] that includes support for 16-bit proc-macro targets [2], a fix for the `default impl` ordering regression in the new solver [4], and a move to use the attribute parser for `deprecated` checking [3]. At the same time, rustfmt shipped a fix that changes brace placement for multiline control flow in Style Edition 2027, aligning it with the Rust Style Guide, while leaving 2024 behavior unchanged [5]. The rust-forge and rustc-dev-guide teams are consolidating contributor docs, moving content that's "applicable to the whole project, not just to the compiler" from the dev-guide into Forge [6], and rust-forge is renaming its default branch to `main` [7]. On the infrastructure side, rustfmt replaced the archived `actions/upload-release-asset` with the gh CLI in CI to keep releases working [8]. Nothing else moved the needle: the crates.io index saw routine crate creates and updates [9].

Action items

References

  1. [1] Auto merge of #161458 - jhpratt:rollup-q1wVzyt, r=jhpratt rust-lang/rust ↗
  2. [2] Rollup of 20 pull requests ↗ rust-lang/rust
  3. [3] Rollup merge of #160459 - obeis:check_deprecated, r=JonathanBrouwer rust-lang/rust ↗
  4. [4] Auto merge of #161268 - nnethercote:fix-160994, r=lcnr rust-lang/rust ↗
  5. [5] Fix brace placement for multiline control flow ↗ rust-lang/rustfmt
  6. [6] move over some info from the dev-guide ↗ rust-lang/rust-forge
  7. [7] Rename the default branch to `main` ↗ rust-lang/rust-forge
  8. [8] Replace archived actions/upload-release-asset with gh CLI ↗ rust-lang/rustfmt
  9. [9] Create crate `dsh-work` rust-lang/crates.io-index ↗

$ ls rust-lang/reviews/ # the step-back reads

the week in review rustc to stop silently dropping unknown LLVM diagnostics the month in review Rust 1.99.0 lands with new raw-borrow lint
Full archive → Weekly reviews →

Quick answers

What shipped in Rust on August 22, 2026?
The Rust compiler landed a massive 20-PR rollup overnight, and rustfmt corrected a brace-placement bug that affects Style Edition 2027. In total, 111 commits and 20 pull requests landed.
Who contributed to Rust on August 22, 2026?
11 developers shipped this update, including bors, jyn514, apiraino, Kobzol, 许杰友 Jieyou Xu (Joe), Tshepang Mbambo, ada4a, and Jacob Pratt, and 3 more.
What were the notable Rust updates?
Auto merge of #161458 - jhpratt:rollup-q1wVzyt, r=jhpratt, Rollup of 20 pull requests, and Rollup merge of #160459 - obeis:check_deprecated, r=JonathanBrouwer.
♥

$ log @rust-lang --recent

docs.rs gets a lockfile refresh, rust-analyzer learns E0220 112 shipped Crates.io closes a crate-scope bypass 184 shipped Array drops fixed in order after partial moves 115 shipped rustup reworks directory overrides to match by identity, not canonical path 83 shipped

$ log --all # elsewhere on the wire

Agent Security Quiet day in agent security as guard coverage reaches four clients Alignment & Post-training verl defaults Ascend RL mode, open-instruct unblocks SFT packing

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

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