+## [2.1.0] - 2021-29-08
+
+### Added
+
+- Add an optional pool option `messageHandler` to `PoolOptions<Worker>` for registering a message handler callback on each worker.
+
+### Breaking Changes
+
+- `AbstractWorker` class `maxInactiveTime`, `killBehavior` and `async` attributes have been removed in favour of the same ones in the worker options `opts` public attribute.
+- `AbstractWorker` class `lastTask` attribute have been renamed to `lastTaskTimestamp`.
+- `AbstractWorker` class `interval` attribute have been renamed to `aliveInterval`.
+- `AbstractWorker` class cannot be instantiated without specifying the `mainWorker` argument referencing the main worker.
+
+## [2.0.2] - 2021-12-05
+
+### Bug fixes
+
+- Fix `busy` event emission on fixed pool type
+
+## [2.0.1] - 2021-16-03
+
+### Bug fixes
+
+- Check if pool options are properly set.
+- `busy` event is emitted on all pool types.
+
+## [2.0.0] - 2021-01-03