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# 2.1.1
- Change the internal algorithm to better accomodate large hashmaps.
This mitigates a [regression with 2.0 in rustc](https://github.com/rust-lang/rust/issues/135477).
See [PR#55](https://github.com/rust-lang/rustc-hash/pull/55) for more details on the change (this PR was not merged).
This problem might be improved with changes to hashbrown in the future.
## 2.1.0
- Implement `Clone` for `FxRandomState`
- Implement `Clone` for `FxSeededState`
- Use SPDX license expression in license field
## 2.0.0
- Replace hash with faster and better finalized hash.
This replaces the previous "fxhash" algorithm originating in Firefox
with a custom hasher designed and implemented by Orson Peters ([`@orlp`](https://github.com/orlp)).
It was measured to have slightly better performance for rustc, has better theoretical properties
and also includes a significantly better string hasher.
- Fix `no_std` builds
## 1.2.0 (**YANKED**)
**Note: This version has been yanked due to issues with the `no_std` feature!**
- Add a `FxBuildHasher` unit struct
- Improve documentation
- Add seed API for supplying custom seeds other than 0
- Add `FxRandomState` based on `rand` (behind the `rand` feature) for random seeds
- Make many functions `const fn`
- Implement `Clone` for `FxHasher` struct
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