* **363:** Re-add support for Python >=3.9 ([`7d9df0c`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/7d9df0ca0630d901b970d85393307bba9492ff90))
1.32.0
Feature
* Allow setting format in timedeltaspec ([`8383269`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/8383269c7f46d8b7da3d7bbacb8d04788bb8e3ce))
1.31.3
Fix
* Remove unused args in flattener ([`82e4cc3`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/82e4cc3c50046126426238ff9f4a76565b94b848))
1.31.2
Fix
* **440:** Type of AggregatedDataframe.df should always be LazyFrame ([`ab9be64`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/ab9be64876f81bd30cca6a18711112b1d72f8491))
1.31.1
Fix
* **441:** Return entity_id in aggregated column ([`d7f9cfb`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/d7f9cfb3490cb97737dd96bafaa390d56ce52471))
1.31.0
Feature
* **439:** Support static features ([`e8d1977`](https://github.com/Aarhus-Psychiatry-Research/timeseriesflattener/commit/e8d19773837be3b5894bf90e509beb7d9a938759))