Hi, It looks like the org.eclipse.gef bundle in eclipse 2024-12 release has the wrong version number. i.e. 3.20 instead of 3.22 Looking at the history of pom.xml it goes straight from 3.20 to 3.23. https://github.com/eclipse-gef/gef-classic/commit/2d4774a6f2b5b94438c70f0183d3208095ec8c50#diff-9c5fb3d1b7e3b0f54bc5c4182965c4fe1f9023d449017cece3005d3f90e8e4d8