Preparing changelog for release

Author: sebastian-peter

CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased/Snapshot]
 
+## [7.0.0] - 2025-05-08
+
 ### Added
 - Implemented GitHub Actions for automatic code integration. [#1237](https://github.com/ie3-institute/PowerSystemDataModel/issues/1237)
 - Added `CopyBuilders` to `Line-/Transformer2W-/Tranformer3WTypeInput` [#1275](https://github.com/ie3-institute/PowerSystemDataModel/issues/1275)
@@ -22,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Updates
 - Updated gradle to v8.14
+- Updated PSU to 3.1.0
 
 ## [6.0.0] - 2025-02-27
 
@@ -354,7 +357,8 @@ coordinates or multiple exactly equal coordinates possible
 -   CsvDataSource now stops trying to get an operator for empty operator uuid field in entities
 -   CsvDataSource now parsing multiple geoJson strings correctly
 
-[Unreleased/Snapshot]: https://github.com/ie3-institute/powersystemdatamodel/compare/6.0.0...HEAD
+[Unreleased/Snapshot]: https://github.com/ie3-institute/powersystemdatamodel/compare/7.0.0...HEAD
+[7.0.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/6.0.0...7.0.0
 [6.0.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/5.1.0...6.0.0
 [5.1.0]: https://github.com/ie3-institute/powersystemdatamodel/compare/5.0.1...5.1.0
 [5.0.1]: https://github.com/ie3-institute/powersystemdatamodel/compare/5.0.0...5.0.1