Who contributed to Rust on October 23, 2026?

6 developers shipped this update, including bors, moabo3li, RalfJung, jieyouxu, armandomontanez, and Jiahao XU.

What were the notable Rust updates?

[Priroda] Integrate the test suite with `./miri`, rustfmt subtree update 2026-10-22, and Auto merge of #164743 - nikic:llvm-23.1.4, r=cuviper.

Oct 23, 2026

$ the-wire · showcase

Miri gains a first-class Priroda test target, rustfmt and LLVM bump in tree

By RepoJournal · Filed 06:58 UTC on October 23, 2026 · About Rust · Composed from the cited sources · methodology

6 people shipped this

bors @bors 2 cited

moabo3li @moabo3li 1 cited

jieyouxu @jieyouxu 1 cited

armandomontanez @armandomontanez 1 cited

RalfJung @RalfJung

Jiahao XU @NobodyXu

Miri's Priroda suite is now reachable through the normal ./miri driver, while rustc picked up a rustfmt subtree sync, LLVM 23.1.4 fix release, and a Cargo submodule update that brings -Zprerelease patch support.

[Priroda] Integrate the test suite with `./miri` rust-lang/miri

by moabo3li

Priroda is now an optional target of the main Miri package, so the full UI suite runs with ./miri test-priroda (or --bless) and the sysroot is prepared internally by the command. That replaces the old ./miri install plus hand-configured MIRI_SYSROOT plus redundant Miri builds, and CI uses the same entry point, so local runs now match what lands.

rustfmt subtree update 2026-10-22 rust-lang/rust

by jieyouxu

rustfmt in tree moved to the rustfmt commit synced by josh-sync, carrying a batch of formatting fixes from rust-lang/rustfmt. Toolchain builds pick up those formatter changes without waiting on a separate rustfmt release.

Auto merge of #164743 - nikic:llvm-23.1.4, r=cuviper rust-lang/rust

by bors

rustc moved to LLVM 23.1.4, closing four tracked compiler issues (163728, 164222, 164298, 164536). Nightly builds after this merge carry the fixed LLVM.

Auto merge of #164650 - weihanglo:cargo-update, r=weihanglo rust-lang/rust

by bors

The Cargo submodule was bumped by 12 commits, including -Zprerelease support for [patch], a new build-std feature, and a util-schemas fix that compiles out the file-path hint where url can't build it. The prerelease patch behavior is gated behind -Zprerelease, so nothing changes without the flag.

feat: Initial libtool support rust-lang/cc-rs

by armandomontanez

cc-rs added initial support for linking static archives through macOS's libtool when AR is explicitly libtool or llvm-libtool-darwin, using -filelist to avoid re-archiving the same content repeatedly and guarding against commas in paths that libtool would split on. Elsewhere Miri dropped check_shim_sig_deprecated, needing rework for miri_resolve_frame.