# 0.4.0 - 2019-06-23
* [Add `from_inner` method](https://github.com/rust-bitcoin/bitcoin_hashes/pull/20) to all hashes
* [Update `FromHex` trait](https://github.com/rust-bitcoin/bitcoin_hashes/pull/40) to require `from_byte_iter` method rather than `from_hex` be implemented
* Make `Hmac` midstate [an actual HMAC midstate](https://github.com/rust-bitcoin/bitcoin_hashes/pull/43)
* Allow `Display` [of truncated hashes](https://github.com/rust-bitcoin/bitcoin_hashes/pull/9)
* Require [using a constructor for `HexIterator`](https://github.com/rust-bitcoin/bitcoin_hashes/pull/44) and then [clean up the internals](https://github.com/rust-bitcoin/bitcoin_hashes/pull/47)
* [Strongly type `sha256::Midstate`](https://github.com/rust-bitcoin/bitcoin_hashes/pull/39) to allow independent serialization
* Add [siphash24 module](https://github.com/rust-bitcoin/bitcoin_hashes/pull/46)
# 0.3.2 - 2019-03-20
* Implement the `FromHex` trait on [many more types](https://github.com/rust-bitcoin/bitcoin_hashes/pull/38)
# 0.3.1 - 2019-03-04
* [Fix serde serialization](https://github.com/rust-bitcoin/bitcoin_hashes/pull/36)
# 0.3.0 - 2019-01-23
* Bump minimum required rustc version to 1.22.0
* Fixed serde deserialization into owned string that previously caused panics
when doing round-trip (de)serialization
* `HashEngine::block_size()` and `Hash::len()` are now associated constants
`HashEngine::BLOCK_SIZE` and `Hash::LEN`
* Removed `block_size()` method from `Hash` trait. It is still available as
`<T as Hash>::Engine::BLOCK_SIZE`
# 0.2.0 - 2019-01-15
* Add a constant-time comparison function
* Simplify `io::Write::write` implementations by having them do only partial writes
* Add fuzzing support
* Allow `Hash`es to be borrowed as `[u8]`
* Replace public `Hash` inners with `into_inner` method
# 0.1.0 - 2018-12-08
* Initial release