+### Changed
+
+- Refactor pool worker node usage internals.
+
+### Fixed
+
+- Fix wait time accounting.
+- Ensure worker choice strategy `LEAST_BUSY` accounts also tasks wait time.
+- Ensure worker choice strategy `LEAST_USED` accounts also queued tasks.
+
+## [2.5.4] - 2023-06-07
+
+### Added
+
+- Add Event Loop Utilization (ELU) statistics to worker tasks usage.
+
+### Changed
+
+- Compute statistics at the worker level only if needed.
+- Add `worker-threads` options to thread pool options.
+
+### Fixed
+
+- Make the `LEAST_BUSY` strategy only relies on task runtime.
+