version 1.8.7

Changes since 1.8.6:

• Remove the arrayref dependency. Unfortunately the crates.io owner
  was compromised.

1.8.7 Latest

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version 1.8.6

Changes since 1.8.5:

• update_mmap and update_mmap_rayon (and by extension b3sum) now
  use seek rather than metadata to get the length of a file/mapping,
  and they tolerate mmap failures. That means b3sum will now memory
  map e.g. Linux block devices, which support mapping despite reporting
  length 0 in metadata. Hashing NUL files on Windows also works now,
  where previously it was an error unless you used --no-mmap or <.
  This change was originally proposed by @nabijaczleweli.

1.8.6

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version 1.8.5

Changes since 1.8.4:

• Forcibly disable LTO when compiling C intrinsics from the Rust build.
  This fixes a build break on Arch Linux ARM:
  #550

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version 1.8.4

Changes since 1.8.3:

• Updated the digest dependency from v0.10 to v0.11. THIS IS A
  POTENTIALLY BREAKING CHANGE for callers using the traits-preview
  Cargo feature. But this is not considered a breaking change for the
  blake3 crate itself; see the docs for traits-preview.
• Performance for WASM SIMD targets is improved by ~20% when the
  wasm32_simd feature is enabled. Contributed by @lamb356.

1.8.4

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version 1.8.3

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 #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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version 1.8.2

Changes since 1.8.1:

• Fixes to the CMake build, particularly around the new TBB feature.

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version 1.8.1

Changes since 1.8.0:

• [CMake] Fix transitive dependencies for TBB when libblake3 is built
  with BLAKE3_USE_TBB=1 (#460 and #461).

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version 1.8.0

Changes since 1.7.0:

• The Rust crate now provides the blake3::hazmat module, which
  replaces the undocumented and now deprecated blake3::guts module.
  This is intended for advanced use cases like Bao and Iroh, which need
  to manipulate chunk and subtree "chaining values" directly. See the
  module docs for more: https://docs.rs/blake3/1.8.0/blake3/hazmat

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version 1.7.0

Changes since 1.6.1:

• The C implementation has gained multithreading support, based on
  Intel's oneTBB library. This works similarly to the Rayon-based
  multithreading used in the Rust implementation. See c/README.md for
  details. Contributed by @silvanshade (#445).
• The Rust implementation has gained a WASM SIMD backend, gated by the
  wasm32_simd Cargo feature. Under Wasmtime on my laptop, this is a 6x
  performance improvement for large inputs. This backend is currently
  Rust-only. Contributed by @monoid (#341).
• Fixed cross-compilation builds targeting Windows with cargo-xwin.
  Contributed by @Sporif and @toothbrush7777777 (#230).
• Added b3sum --tag, which changes the output format. This is for
  compatibility with GNU checksum tools (which use the same flag) and
  BSD checksum tools (which use the output format this flag turns on).
  Contributed by @leahneukirchen (#453) and @dbohdan (#430).

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version 1.6.1

Changes since 1.6.0:

• Remove mmap from the default features list. It was added
  accidentally in v1.6.0, last week. This is technically a
  backwards-incompatible change, but I would rather not tag v2.0.0 for a
  build-time bugfix with a simple workaround.

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