Performance Improvements
* Upgrade OSHDB to version 1.2.0, significantly speeding up queries which touch many entities, i.e. frequent tags like `building` ([oshdb511])
Bug Fixes
* Fix bug which prevented some filters (which only work on ContributionView-based queries) to correctly work in contribution extraction endpoints ([305])
Other
* Add additional query metrics to log output: the used `filter`, `time` and some stats about the boundary parameter (type, bounding box and area) ([304])
* Update ohsome parent module, switch to new HeiGIT maven repository ([307])
[304]: https://github.com/GIScience/ohsome-api/pull/304
[305]: https://github.com/GIScience/ohsome-api/issues/305
[307]: https://github.com/GIScience/ohsome-api/pull/307
[oshdb511]: https://github.com/GIScience/oshdb/pull/511