What's Changed
* Use topological sort in workflow step sorting (GSI-309) by TheByronHimes in 32
* Changed loader API behaviour by mephenor in 33
* Create summary statistics after loading (GIM-309) by Cito in 34
* Add REST API endpoint for summary statistics by Cito in 35
* Add transformation that generates summary statistics by lkuchenb in 36
* Loader API event publisher by mephenor in 38
* Use file extension code from service commons by mephenor in 41
* Add normalization transformation by lkuchenb in 39
New Contributors
* TheByronHimes made their first contribution in 32
**Full Changelog**: https://github.com/ghga-de/metldata/compare/0.3.7...0.4.0