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Changes since 1.8.2:
- Add `Hash::as_slice`.
- Update to the 2024 Edition and bump the MSRV to 1.85.
- Fix a set of Miri failures in the intrinsics implementations. We were
computing (though not dereferencing) an out-of-bounds pointer using
`add` rather than `wrapping_add`. I'm not aware of any observable
consequences of this bug. See https://github.com/BLAKE3-team/BLAKE3/pull/507.
- CPU feature detection on x86/x86-64 no longer requires the `std` Cargo
feature in the `blake3` crate.
- Build fixes in the C implementation for macOS and Cygwin, and various
improvements to the CMake build.
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While we're taking this MSRV bump, we can also update
`constant_time_eq`, which uses the 2024 edition in its most recent
versions.
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Changes since 1.5.5:
- Add Hash::from_slice. (#448)
- Fix a build error on Windows 7 targets. (#447)
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Changes since 1.4.1:
- The Rust crate's Hasher type has gained new helper methods for common
forms of IO: update_reader, update_mmap, and update_mmap_rayon. The
latter matches the default behavior of b3sum. The mmap methods are
gated by the new "mmap" Cargo feature.
- Most of the Rust crate's public types now implement the Zeroize trait.
This is gated by the new "zeroize" Cargo feature.
- The Rust crate's Hash types now implements the serde Serialize and
Deserialize traits. This is gated by the new "serde" Cargo feature.
- The C library now uses atomics to cache detected CPU features under
most compilers other than MSVC. Previously this was a non-atomic
write, which was probably "benign" but made TSan unhappy.
- NEON support is now disabled by default on big-endian AArch64.
Previously this was a build error if the caller didn't explicitly
disable it.
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The MSRV is already 1.60, so this doesn't affect much. The only impact
to other code is that we no longer need to explicitly import TryInto.
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Wire up basic functions and features for SSE2 support using the SSE4.1 version
as a basis without implementing the SSE2 instructions yet.
* Cargo.toml: add no_sse2 feature
* benches/bench.rs: wire SSE2 benchmarks
* build.rs: add SSE2 rust intrinsics and assembly builds
* c/Makefile.testing: add SSE2 C and assembly targets
* c/README.md: add SSE2 to C build instructions
* c/blake3_c_rust_bindings/build.rs: add SSE2 C rust binding builds
* c/blake3_c_rust_bindings/src/lib.rs: add SSE2 C rust bindings
* c/blake3_dispatch.c: add SSE2 C dispatch
* c/blake3_impl.h: add SSE2 C function prototypes
* c/blake3_sse2.c: add SSE2 C intrinsic file starting with SSE4.1 version
* c/blake3_sse2_x86-64_{unix.S,windows_gnu.S,windows_msvc.asm}: add SSE2
assembly files starting with SSE4.1 version
* src/ffi_sse2.rs: add rust implementation using SSE2 C rust bindings
* src/lib.rs: add SSE2 rust intrinsics and SSE2 C rust binding rust SSE2 module
configurations
* src/platform.rs: add SSE2 rust platform detection and dispatch
* src/rust_sse2.rs: add SSE2 rust intrinsic file starting with SSE4.1 version
* tools/instruction_set_support/src/main.rs: add SSE2 feature detection
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