# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## 1.6.4 (2022-10-06)
### Added
- `RandomizedPrehashSigner` trait in `hazmat` module ([#1130])
[#1130]: https://github.com/RustCrypto/traits/pull/1130
## 1.6.3 (2022-09-16)
### Changed
- Bump `signature_derive` to v1.0.0-pre.7 ([#1119])
[#1119]: https://github.com/RustCrypto/traits/pull/1119
## 1.6.2 (2022-09-15)
### Changed
- Relax `Keypair` type bounds ([#1107])
[#1107]: https://github.com/RustCrypto/traits/pull/1107
## 1.6.1 (2022-09-12) [YANKED]
### Added
- `hazmat-preview` feature with `PrehashSigner`/`PrehashVerifier` traits ([#1099])
### Changed
- Bump `signature_derive` to v1.0.0-pre.6 ([#1104])
[#1099]: https://github.com/RustCrypto/traits/pull/1099
[#1104]: https://github.com/RustCrypto/traits/pull/1104
## 1.6.0 (2022-08-14) [YANKED]
### Added
- `Keypair` trait ([#1080])
### Changed
- Rust 2021 edition upgrade; MSRV 1.56 ([#1081])
- Bump `signature_derive` dependency to v1.0.0-pre.5 ([#1082])
- Bump `hex-literal` dependency to v0.3 ([#1083])
[#1080]: https://github.com/RustCrypto/traits/pull/1080
[#1081]: https://github.com/RustCrypto/traits/pull/1081
[#1082]: https://github.com/RustCrypto/traits/pull/1082
[#1083]: https://github.com/RustCrypto/traits/pull/1083
## 1.5.0 (2022-01-04)
### Changed
- Bump `digest` dependency to v0.10 ([#850])
- Bump `signature-derive` dependency to v1.0.0-pre.4 ([#866])
[#850]: https://github.com/RustCrypto/traits/pull/850
[#866]: https://github.com/RustCrypto/traits/pull/866
## 1.4.0 (2021-10-20)
### Added
- Re-export `rand_core` when the `rand-preview` feature is enabled ([#683])
- `SignerMut` trait ([#734])
### Fixed
- Show error source in `Display` impl ([#791])
[#683]: https://github.com/RustCrypto/traits/pull/683
[#734]: https://github.com/RustCrypto/traits/pull/734
[#791]: https://github.com/RustCrypto/traits/pull/791
## 1.3.2 (2021-10-21)
### Fixed
- Backport changes from [#791] to the 1.3.x series.
## 1.3.1 (2021-06-29)
### Added
- `Result` alias ([#676])
[#676]: https://github.com/RustCrypto/traits/pull/676
## 1.3.0 (2021-01-06)
### Changed
- Bump `rand_core` to v0.6 ([#457])
- Bump `signature-derive` v1.0.0-pre.3 ([#459])
[#457]: https://github.com/RustCrypto/traits/pull/457
[#459]: https://github.com/RustCrypto/traits/pull/459
## 1.2.2 (2020-07-29)
### Added
- `RandomizedDigestSigner` ([#235])
[#235]: https://github.com/RustCrypto/traits/pull/235
## 1.2.1 (2020-07-29)
### Removed
- RNG generic parameter `R` from `RandomizedSigner` ([#231])
[#231]: https://github.com/RustCrypto/traits/pull/231
## 1.2.0 (2020-07-29) [YANKED]
- Note: this release was published without the intended changes
## 1.1.0 (2020-06-09)
### Changed
- Upgrade `digest` to v0.9; MSRV 1.41+ ([#186])
[#186]: https://github.com/RustCrypto/traits/pull/186
## 1.0.1 (2020-04-19)
### Changed
- Upgrade `signature_derive` to v1.0.0-pre.2 ([#98])
[#98]: https://github.com/RustCrypto/traits/pull/98
## 1.0.0 (2020-04-18)
Initial 1.0 release! 🎉
### Changed
- Rename `DigestSignature` => `PrehashSignature` ([#96])
[#96]: https://github.com/RustCrypto/traits/pull/96
## 1.0.0-pre.5 (2020-03-16)
### Changed
- Improve `Debug` impl on `Error` ([#89])
- Rename `Signature::as_slice` -> `as_bytes` ([#87])
[#89]: https://github.com/RustCrypto/traits/pull/89
[#87]: https://github.com/RustCrypto/traits/pull/87
## 1.0.0-pre.4 (2020-03-15)
### Added
- Mark preview features as unstable in `Cargo.toml` ([#82])
### Changed
- Have `Signature::from_bytes` take a byte slice ([#84])
- Ensure `Error::new()` is mandatory ([#83])
### Removed
- `BoxError` type alias ([#81])
[#84]: https://github.com/RustCrypto/traits/pull/84
[#83]: https://github.com/RustCrypto/traits/pull/83
[#82]: https://github.com/RustCrypto/traits/pull/82
[#81]: https://github.com/RustCrypto/traits/pull/81
## 1.0.0-pre.3 (2020-03-08)
### Fixed
- docs.rs rendering ([#76])
[#76]: https://github.com/RustCrypto/traits/pull/76
## 1.0.0-pre.2 (2020-03-08)
### Added
- `RandomizedSigner` trait ([#73])
- Design documentation ([#72])
### Changed
- Error cleanups ([#74])
- Crate moved to `RustCrypto/traits` ([#71])
[#74]: https://github.com/RustCrypto/traits/pull/74
[#73]: https://github.com/RustCrypto/traits/pull/73
[#72]: https://github.com/RustCrypto/traits/pull/72
[#71]: https://github.com/RustCrypto/traits/pull/71
## 1.0.0-pre.1 (2019-10-27)
### Changed
- Use `Error::source` instead of `::cause` ([RustCrypto/signatures#37])
### Removed
- Remove `alloc` feature; MSRV 1.34+ ([RustCrypto/signatures#38])
[RustCrypto/signatures#38]: https://github.com/RustCrypto/signatures/pull/38
[RustCrypto/signatures#37]: https://github.com/RustCrypto/signatures/pull/37
## 1.0.0-pre.0 (2019-10-11)
### Changed
- Revert removal of `DigestSignature` ([RustCrypto/signatures#33])
- 1.0 stabilization proposal ([RustCrypto/signatures#32])
[RustCrypto/signatures#33]: https://github.com/RustCrypto/signatures/pull/33
[RustCrypto/signatures#32]: https://github.com/RustCrypto/signatures/pull/32
## 0.3.0 (2019-10-10)
### Changed
- Simplify alloc gating; MSRV 1.36+ ([RustCrypto/signatures#28])
- Replace `DigestSignature` trait with `#[digest(...)]` attribute ([RustCrypto/signatures#27])
- signature_derive: Upgrade to 1.x proc macro crates ([RustCrypto/signatures#26])
[RustCrypto/signatures#28]: https://github.com/RustCrypto/signatures/pull/28
[RustCrypto/signatures#27]: https://github.com/RustCrypto/signatures/pull/27
[RustCrypto/signatures#26]: https://github.com/RustCrypto/signatures/pull/27
## 0.2.0 (2019-06-06)
### Added
- `signature_derive`: Custom derive support for `Signer`/`Verifier` ([RustCrypto/signatures#18])
### Changed
- Have `DigestSigner`/`DigestVerifier` take `Digest` instance ([RustCrypto/signatures#17])
[RustCrypto/signatures#18]: https://github.com/RustCrypto/signatures/pull/18
[RustCrypto/signatures#17]: https://github.com/RustCrypto/signatures/pull/17
## 0.1.0 (2019-05-25)
- Initial release