What's Changed
* ML-4799: Simplify and optimize emit source offset handling for performance by gtopper in https://github.com/mlrun/storey/pull/462
* ML-4879: Avoid keeping reference to events in `AggregateByKey` when cache is disabled by gtopper in https://github.com/mlrun/storey/pull/463
**Full Changelog**: https://github.com/mlrun/storey/compare/v1.6.1...v1.6.2