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1.10.1 (March 5th, 2025)

Fixed

  • Fix memory leak when using to_vec with Bytes::from_owner (#773)

1.10.0 (February 3rd, 2025)

Added

  • Add feature to support platforms without atomic CAS (#467)
  • try_get_* methods for Buf trait (#753)
  • Implement Buf::chunks_vectored for Take (#617)
  • Implement Buf::chunks_vectored for VecDeque<u8> (#708)

Fixed

  • Remove incorrect guarantee for chunks_vectored (#754)
  • Ensure that tests pass under panic=abort (#749)

1.9.0 (November 27, 2024)

Added

  • Add Bytes::from_owner to enable externally-allocated memory (#742)

Documented

  • Fix typo in Buf::chunk() comment (#744)

Internal changes

  • Replace BufMut::put with BufMut::put_slice in Writer impl (#745)
  • Rename hex_impl! to fmt_impl! and reuse it for fmt::Debug (#743)

1.8.0 (October 21, 2024)

  • Guarantee address in split_off/split_to for empty slices (#740)

1.7.2 (September 17, 2024)

Fixed

  • Fix default impl of Buf::{get_int, get_int_le} (#732)

Documented

  • Fix double spaces in comments and doc comments (#731)

Internal changes

  • Ensure BytesMut::advance reduces capacity (#728)

1.7.1 (August 1, 2024)

This release reverts the following change due to a regression:

  • Reuse capacity when possible in <BytesMut as Buf>::advance impl (#698)

The revert can be found at #726.

1.7.0 (July 31, 2024)

Added

  • Add conversion from Bytes to BytesMut (#695, #710)
  • Add reclaim method without additional allocation (#686)

Documented

  • Clarify how BytesMut::zeroed works (#714)
  • Clarify the behavior of Buf::chunk (#717)

Changed

  • Change length condition of BytesMut::truncate
  • Reuse capacity when possible in <BytesMut as Buf>::advance impl (#698)
  • Improve must_use suggestion of BytesMut::split (#699)

Internal changes

  • Use ManuallyDrop instead of mem::forget (#678)
  • Don't set len in BytesMut::reserve (#682)
  • Optimize Bytes::copy_to_bytes (#688)
  • Refactor BytesMut::truncate (#694)
  • Refactor BytesMut::resize (#696)
  • Reorder assertion in Bytes::split_to, Bytes::split_off (#689, #693)
  • Use offset_from in more places (#705)
  • Correct the wrong usage of IntoIter (#707)

1.6.1 (July 13, 2024)

This release fixes a bug where Bytes::is_unique returns incorrect values when the Bytes originates from a shared BytesMut. (#718)

1.6.0 (March 22, 2024)

Added

  • Add Bytes::is_unique (#643)

Documented

  • Fix changelog typo (#628)
  • Fix some spelling mistakes (#633)
  • Typo fix (#637)
  • Fix broken links (#639)
  • Add security policy (#649)

Internal changes

  • Move comment to correct constant (#629)
  • Various cleanup (#635)
  • Simplify UninitSlice::as_uninit_slice_mut() logic (#644)
  • Use self. instead of Self:: (#642)
  • BytesMut: Assert alignment of Shared (#652)
  • Remove unnecessary namespace qualifier (#660)
  • Remove an unnecessary else branch (#662)
  • Remove unreachable else branch (#661)
  • make parameter mut in From<Vec> (#667)
  • Restore commented tests (#665)
  • Use sub instead of offset (#668)
  • Calculate original capacity only if necessary (#666)
  • set_vec_pos does not need a second parameter (#672)
  • get_vec_pos: use &self instead of &mut self (#670)
  • Refactor split_at/split_to (#663)
  • Use Iterator from the prelude (#673)
  • copy_to_bytes: Add panic section to docs (#676)
  • Remove redundant reserve call (#674)
  • Use ManuallyDrop instead of mem::forget (#675)

1.5.0 (September 7, 2023)

Added

  • Add UninitSlice::{new,uninit} (#598, #599)
  • Implement BufMut for &mut [MaybeUninit<u8>] (#597)

Changed

  • Mark BytesMut::extend_from_slice as inline (#595)

1.4.0 (January 31, 2023)

Added

  • Make IntoIter constructor public (#581)

Fixed

  • Avoid large reallocations when freezing BytesMut (#592)

Documented

  • Document which functions require std (#591)
  • Fix duplicate "the the" typos (#585)

1.3.0 (November 20, 2022)

Added

  • Rename and expose BytesMut::spare_capacity_mut (#572)
  • Implement native-endian get and put functions for Buf and BufMut (#576)

Fixed

  • Don't have important data in unused capacity when calling reserve (#563)

Documented

  • Bytes::new etc should return Self not Bytes (#568)

1.2.1 (July 30, 2022)

Fixed

  • Fix unbounded memory growth when using reserve (#560)

1.2.0 (July 19, 2022)

Added

  • Add BytesMut::zeroed (#517)
  • Implement Extend<Bytes> for BytesMut (#527)
  • Add conversion from BytesMut to Vec<u8> (#543, #554)
  • Add conversion from Bytes to Vec<u8> (#547)
  • Add UninitSlice::as_uninit_slice_mut() (#548)
  • Add const to Bytes::{len,is_empty} (#514)

Changed

  • Reuse vector in BytesMut::reserve (#539, #544)

Fixed

  • Make miri happy (#515, #523, #542, #545, #553)
  • Make tsan happy (#541)
  • Fix remaining_mut() on chain (#488)
  • Fix amortized asymptotics of BytesMut (#555)

Documented

  • Redraw layout diagram with box drawing characters (#539)
  • Clarify BytesMut::unsplit docs (#535)

1.1.0 (August 25, 2021)

Added

  • BufMut::put_bytes(self, val, cnt) (#487)
  • Implement From<Box<[u8]>> for Bytes (#504)

Changed

  • Override put_slice for &mut [u8] (#483)
  • Panic on integer overflow in Chain::remaining (#482)
  • Add inline tags to UninitSlice methods (#443)
  • Override copy_to_bytes for Chain and Take (#481)
  • Keep capacity when unsplit on empty other buf (#502)

Documented

  • Clarify BufMut allocation guarantees (#501)
  • Clarify BufMut::put_int behavior (#486)
  • Clarify actions of clear and truncate. (#508)

1.0.1 (January 11, 2021)

Changed

  • mark Vec::put_slice with #[inline] (#459)

Fixed

  • Fix deprecation warning (#457)
  • use Box::into_raw instead of mem::forget-in-disguise (#458)

1.0.0 (December 22, 2020)

Changed

  • Rename Buf/BufMut methods bytes() and bytes_mut() to chunk() and chunk_mut() (#450)

Removed

  • remove unused Buf implementation. (#449)

0.6.0 (October 21, 2020)

API polish in preparation for a 1.0 release.

Changed

  • BufMut is now an unsafe trait (#432).
  • BufMut::bytes_mut() returns &mut UninitSlice, a type owned by bytes to avoid undefined behavior (#433).
  • Buf::copy_to_bytes(len) replaces Buf::into_bytes() (#439).
  • Buf/BufMut utility methods are moved onto the trait and *Ext traits are removed (#431).

Removed

  • BufMut::bytes_vectored_mut() (#430).
  • new methods on combinator types (#434).

0.5.6 (July 13, 2020)

  • Improve BytesMut to reuse buffer when fully advanced.
  • Mark BytesMut::{as_mut, set_len} with #[inline].
  • Relax synchronization when cloning in shared vtable of Bytes.
  • Move loom to dev-dependencies.

0.5.5 (June 18, 2020)

Added

  • Allow using the serde feature in no_std environments (#385).

Fix

  • Fix BufMut::advance_mut to panic if advanced passed the capacity (#354)..
  • Fix BytesMut::freeze ignoring amount previously advanced (#352).

0.5.4 (January 23, 2020)

Added

  • Make Bytes::new a const fn.
  • Add From<BytesMut> for Bytes.

Fix

  • Fix reversed arguments in PartialOrd for Bytes.
  • Fix Bytes::truncate losing original capacity when repr is an unshared Vec.
  • Fix Bytes::from(Vec) when allocator gave Vec a pointer with LSB set.
  • Fix panic in Bytes::slice_ref if argument is an empty slice.

0.5.3 (December 12, 2019)

Added

  • must_use attributes to split, split_off, and split_to methods (#337).

Fix

  • Potential freeing of a null pointer in Bytes when constructed with an empty Vec<u8> (#341, #342).
  • Calling Bytes::truncate with a size large than the length will no longer clear the Bytes (#333).

0.5.2 (November 27, 2019)

Added

  • Limit methods into_inner, get_ref, get_mut, limit, and set_limit (#325).

0.5.1 (November 25, 2019)

Fix

  • Growth documentation for BytesMut (#321)

0.5.0 (November 25, 2019)

Fix

  • Potential overflow in copy_to_slice

Changed

  • Increased minimum supported Rust version to 1.39.
  • Bytes is now a "trait object", allowing for custom allocation strategies (#298)
  • BytesMut implicitly grows internal storage. remaining_mut() returns usize::MAX (#316).
  • BufMut::bytes_mut returns &mut [MaybeUninit<u8>] to reflect the unknown initialization state (#305).
  • Buf / BufMut implementations for &[u8] and &mut [u8] respectively (#261).
  • Move Buf / BufMut "extra" functions to an extension trait (#306).
  • BufMutExt::limit (#309).
  • Bytes::slice takes a RangeBounds argument (#265).
  • Bytes::from_static is now a const fn (#311).
  • A multitude of smaller performance optimizations.

Added

  • no_std support (#281).
  • get_*, put_*, get_*_le, and put_*le accessors for handling byte order.
  • BorrowMut implementation for BytesMut (#185).

Removed

  • IntoBuf (#288).
  • Buf implementation for &str (#301).
  • byteorder dependency (#280).
  • iovec dependency, use std::IoSlice instead (#263).
  • optional either dependency (#315).
  • optional i128 feature -- now available on stable. (#276).

0.4.12 (March 6, 2019)

Added

  • Implement FromIterator<&'a u8> for BytesMut/Bytes (#244).
  • Implement Buf for VecDeque (#249).

0.4.11 (November 17, 2018)

  • Use raw pointers for potentially racy loads (#233).
  • Implement BufRead for buf::Reader (#232).
  • Documentation tweaks (#234).

0.4.10 (September 4, 2018)

  • impl Buf and BufMut for Either (#225).
  • Add Bytes::slice_ref (#208).

0.4.9 (July 12, 2018)

  • Add 128 bit number support behind a feature flag (#209).
  • Implement IntoBuf for &mut [u8]

0.4.8 (May 25, 2018)

  • Fix panic in BytesMut FromIterator implementation.
  • Bytes: Recycle space when reserving space in vec mode (#197).
  • Bytes: Add resize fn (#203).

0.4.7 (April 27, 2018)

  • Make Buf and BufMut usable as trait objects (#186).
  • impl BorrowMut for BytesMut (#185).
  • Improve accessor performance (#195).

0.4.6 (Janary 8, 2018)

  • Implement FromIterator for Bytes/BytesMut (#148).
  • Add advance fn to Bytes/BytesMut (#166).
  • Add unsplit fn to BytesMut (#162, #173).
  • Improvements to Bytes split fns (#92).

0.4.5 (August 12, 2017)

  • Fix range bug in Take::bytes
  • Misc performance improvements
  • Add extra PartialEq implementations.
  • Add Bytes::with_capacity
  • Implement AsMut[u8] for BytesMut

0.4.4 (May 26, 2017)

  • Add serde support behind feature flag
  • Add extend_from_slice on Bytes and BytesMut
  • Add truncate and clear on Bytes
  • Misc additional std trait implementations
  • Misc performance improvements

0.4.3 (April 30, 2017)

  • Fix Vec::advance_mut bug
  • Bump minimum Rust version to 1.15
  • Misc performance tweaks

0.4.2 (April 5, 2017)

  • Misc performance tweaks
  • Improved Debug implementation for Bytes
  • Avoid some incorrect assert panics

0.4.1 (March 15, 2017)

  • Expose buf module and have most types available from there vs. root.
  • Implement IntoBuf for T: Buf.
  • Add FromBuf and Buf::collect.
  • Add iterator adapter for Buf.
  • Add scatter/gather support to Buf and BufMut.
  • Add Buf::chain.
  • Reduce allocations on repeated calls to BytesMut::reserve.
  • Implement Debug for more types.
  • Remove Source in favor of IntoBuf.
  • Implement Extend for BytesMut.

0.4.0 (February 24, 2017)

  • Initial release
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