what stackpulse tracks
Rust releases from GitHub
StackPulse watches Rust release notes and keeps the original source link close to every summary.
#stacks/rust/language
Rust release notes, breaking changes, and upgrade notes.
A language empowering everyone to build reliable software StackPulse turns upstream changelogs into scannable summaries with risky changes, deprecations, migration notes, and source links.
releases
5
breaking
3
security
3
deprecated
1
migrations
0
upgrade risk
Breaking changes and deprecations
Risky changes are separated from normal feature notes so you can scan upgrade impact before changing production dependencies.
migration notes
Source-backed next steps
Migration steps and recommended actions are only shown when the upstream release notes support them.
# latest_releases
source-backed1.96.0highbreakingdeprecationfeaturesecurityMay 28, 2026
Rust 1.96.0
This release introduces several language and compiler enhancements, including support for s390x vector registers in inline assembly and improved handling of `cfg` metavariables. It also stabilizes APIs like `assert_matches!` and `debug_assert_matches!`, and addresses security vulnerabilities with fixes for CVEs.
affected
Developers using `avr` targets or relying on `BTreeMap::append()` with incorrect `Ord` impls may be affected by breaking changes.
action
Update dependencies and review code for compatibility with breaking changes, especially on `avr` targets.
release_signals
-On `avr` targets, `c_double` is now `f32` to match C's 32-bit `double` type
-Importing structs with `::{self [as name]}` is no longer permitted
-`BTreeMap::append()` may now cause panics for types with incorrect `Ord` impls
!Fixed CVE-2026-5222
!Fixed CVE-2026-5223
!Deprecation notes in Rustdoc are now rendered like any other documentation
+Allow passing `expr` metavariable to `cfg`
+Support s390x vector registers in inline assembly
+Support iterating over ranges of `NonZero` integers
+Stabilized `assert_matches!` and `debug_assert_matches!` macros
+Allow a dependency to specify both a git repository and an alternate registry
1.95.0highfeaturesecurityApr 16, 2026
Rust 1.95.0
This release stabilizes several language features, including `if let` guards on match arms and inline assembly for PowerPC. It also introduces platform promotions to Tier 2 for various Apple architectures and includes security patches for vendored musl.
affected
Developers using Rust on PowerPC or Apple architectures, or those relying on `if let` guards, will benefit from this release.
action
Update to Rust 1.95.0 to take advantage of new features and security patches.
release_signals
!Apply patches for CVE-2026-6042 and CVE-2026-40200 to vendored musl
+Stabilize `if let` guards on match arms
+Support importing path-segment keywords with renaming
+Stabilize inline assembly for PowerPC and PowerPC64
+Promote `powerpc64-unknown-linux-musl` to Tier 2 with host tools
+Speed up `str::contains` on aarch64 targets with `neon` target feature enabled by default
1.94.1mediumbreakingsecurityMar 26, 2026
Rust 1.94.1
This release includes fixes for `std::thread::spawn` on wasm32-wasip1-threads, removes unstable methods from `std::os::windows::fs::OpenOptionsExt`, and addresses a Clippy ICE. It also updates the `tar` dependency in Cargo to resolve security vulnerabilities.
affected
Developers using `std::os::windows::fs::OpenOptionsExt` or `std::thread::spawn` on wasm32-wasip1-threads may be affected.
action
Update to Rust 1.94.1 to benefit from the fixes and security updates.
release_signals
-Removed new methods from `std::os::windows::fs::OpenOptionsExt` as they were unstable and the trait cannot be extended with non-default methods.
!Updated `tar` to 0.4.45 to resolve CVE-2026-33055 and CVE-2026-33056. Users of crates.io are not affected.