## 0.3.2.1
* Fix benchmark
## 0.3.2
* Export IOPRef, IOSRef, IOBRef [#5](https://github.com/fpco/mutable-containers/pull/5)
## 0.3.1
* Export IOURef [#4](https://github.com/fpco/mutable-containers/pull/4)
## 0.3.0
* Rename `DList` to `DLList` to avoid conflict with difference lists
## 0.2.1.2
* `Deque` optimizations by avoiding modulus operations completely.
## 0.2.1.1
* Fix a bug in `Deque`'s new vector allocation/copy code.
## 0.2.1
* Export `Prim`, `Unbox` and `Storable`
* `SRef` uses `ForeignPtr` directly (slightly more efficient)
## 0.2.0
* Restructure under the Data.Mutable module.
## 0.1.2.0
* Added PRef
## 0.1.1.0
* Added reference benchmark.
* Added boxed deque and references.