# Changes ## [0.3.1] - 2019-12-12 ### Changed * Use parking_lot 0.10 ## [0.3.0] - 2019-12-02 ### Changed * Expect `Result` type as a function return type ## [0.2.0] - 2019-11-21 ### Changed * Migrate to `std::future` ## [0.1.2] - 2019-08-05 ### Changed * Update `derive_more` to 0.15 * Update `parking_lot` to 0.9 ## [0.1.1] - 2019-06-05 * Update parking_lot ## [0.1.0] - 2019-03-28 * Move threadpool to separate crate