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crates.io · #61 most downloaded on crates.io
Lightweight runtime CPU feature detection for aarch64, loongarch64, and x86/x86_64 targets, with no_std support and support for mobile targets including Android and iOS
Last release 1 months ago
26 Aug 2026
Release timing varies
gaps range from 1 weeks to 13 months
Nearly every release is documented
notes for 20 of 21 stable releases
6 versions withdrawn
withdrawn after publishing
5 years old
27 releases · first in 2021
Use ::MAX constant instead of deprecated ::max_value() associated method
One column per quarter.
Don't link std when linking libc ([#1142])
std when linking libc (#1142)cfg for freestanding x86 targets ([#1137])
cfg for freestanding x86 targets (#1137)[#1130]: https://github.com/RustCrypto/utils/pull/1130
Support for detecting Data Independent Timing (DIT) on AArch64 ([#1100], [#1101])
Use #[cold] for initialization code ([#1096])
#[cold] for initialization code (#1096)Support for x86-64 AVX-512 target features: gfni, vaes, vpclmulqdq, avx512bitalg, avx512vpopcntdq ([#1035])
gfni, vaes, vpclmulqdq, avx512bitalg, avx512vpopcntdq (#1035)Support for AArch64's sm4 target feature ([#972])
sm4 target feature (#972)LoongArch64 target support ([#955])
Support for avx512vbmi and avx512vbmi2 target features ([#926])
avx512vbmi and avx512vbmi2 target features (#926)Check OS register support on x86 targets ([#919])
Support freestanding/UEFI x86 targets ([#821])
x86 targets (#821)Support dynamic feature detection on iOS and derivative platforms ([#848])
Add workaround for [CPUID bug] in std ([#800])
Re-release v0.2.3 without any changes to fix [#795] ([#796])
Update libc version to v0.2.95 ([#789])
Support for Android on aarch64 ([#752])
Revert [#583] "Use from_bytes_with_nul for string check" ([#597])
AArch64 crypto target feature ([#594])
crypto target feature (#594)Map aarch64 HWCAPs to target features; add crypto ([#456])
Support compiling on non-Linux/macOS aarch64 targets ([#408])
neon on aarch64 targets: already enabled by default ([#406])
neon on aarch64 targets: already enabled by default (#406)neon feature detection on aarch64 targets ([#403])
aarch64 support for Linux and macOS/M4 targets ([#393])
aarch64 support for Linux and macOS/M4 targets (#393)- Initial release
Nothing published for this version
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