### Fixed
- Fix race condition between ready and task functions worker message handling at startup.
-- Fix duplicate task usage statistics computation per task function.
+- Fix duplicate task function worker usage statistics computation per task function.
+- Update task function worker usage statistics if and only if there's at least two different task functions.
+- Fix race condition at task function worker usage executing task computation leading to negative value.
### Added
-- Add back pressure detection on the worker node queue. Event `backPressure` is emitted when the worker node queue is full (size > poolMaxSize^2).
+- Add back pressure detection on the worker node queue. Event `backPressure` is emitted when all worker node queues are full (worker node queue size >= poolMaxSize^2).
- Use back pressure detection in worker choice strategies.
- Add worker choice strategies retries mechanism if no worker is eligible.