v4.9.0-RC1
Pre-release
Pre-release
To fix any issues due to migration, please go to the migration guide. Labels 
Release notes
CGMES
- CGMES Models' description, modellinAuthoritySet are not identifiers (#2094)
- Update dependencies between model descriptions at export (#2096)
- Fix regulating terminal mapping. Map cgmesTerminals associated to switches (#2042)
- Fix export of generating units with multiple synchronous machines (#2097)
- Fill ENTSOE category extension from CGMES generating unit description (#2112)
- CGMES export: phase tap changers exported as tabular if EQ is exported (#2102)
- Create equivalent injection id and terminal (#2109)
- CGMES export EQ: tap changer regulating controls (#2105)
- CGMES export SV: write proper RDF ids for SV objects (#2119)
- Clean: delete unused class (#2121)
- CGMES EQ export: consider 2 and 3-winding transformer tap changers (#2107)
- CGMES export: only export terminals for objects exported as equipment (#2111)
- Add CGMES naming strategy (#2023)
- CGMES import: ensure path exists before trying to load boundaries (#2131)
- Move GL CGMES conversion into core (#2135)
- CGMES mRIDs: allow all versions of UUID (#2142)
- CGMES import: consider DC Topological Nodes (#2140)
- CGMES export: shunt compensator reference to its regulating control (#2146)
- CGMES export: export definition of regulating controls only once (#2148)
- CGMES export: handle regions not related to countries (#2150)
- CGMES conversion: non-impedant equivalent branches and series compensators mapped to fictitious switches, consistent with ac line segments (#2143)
- CGMES export: ignore fictitious switches created for disconnected terminals (#2137)
- CGMES: tieflow may not be a dangling line (#2108)
- CGMES: support additional configuration for HVDC (#2125)
CGMES 3 (beta)
- CGMES 3 Improvements (#2091)
Configuration
- Add methods to get specific parameters for sensitivity and security providers (#2089)
- Import/export parameter possible values (#2122)
- Add update method for parameter extensions with map (#2117)
- Add possible values for import/export parameters when possible (#2139)
- Dummy platform config when no PlatformConfigProvider found (#2062)
- Add possible values for extensions (from present extensions modules) (#2147)
DataSource
- Fix ZIP datasource with dot in name (#2083)
IIDM
- Set Identifiable name (#2078)
- Fix NPE: no NPE thrown when equipment added and validation level has been invalidated (#2087)
- Throw exception when trying to access component of removed equipment (#2093)
- Bump XIIDM to 1.8 Breaking Change
- Fix IdentifiableShortCircuitAdderImpl implementation (generics) (#2138)
- Move GeneratorStartup extension to powsybl-core (#2144)
Short circuits
- Improve three phase shortcircuits API to support elementary computation (#1947)
Matpower
- Matpower export (#2130)
Modifications
- Fix: connectivity is symmetrical when attaching a voltage level on a line (#2106)
Power Factory
- Load converter (#2071)
- PowerFactory study case custom JSON serialization (#2101)
- PowerFactory DB study case loader (#2035)
PSS/E
- PSSE Converter: Fix error when moving the shunt admittance between ideal ratio and transmission impedance (#2116)
LoadFlow - Add distributed active power to load flow result (#2141)
Security Analysis
- Bus and branch result extension (#2126)
TripleStore
- Triplestore: remove prefix using indexOf instead of replaceAll (#2084)
- Remove Jena triplestore implementation (#2123)
XML
- Manually clear the inputstream on various XMLInputFactory objects to allow gc. Make the code more uniform. (#2128)
Quality