**With 7.0 and higher:**
You need to make an extension bundle / Eclipse plugin to extend the Engine / Designer.
How to do this see the [Concept chapter][1] in the Designer Guide.
The Extension Point is still the same as before: [ch.ivyteam.ivy.server.IServerExtension][2]
[1]: https://developer.axonivy.com/doc/latest/DesignerGuideHtml/ivy.concepts.html#ivy-extension-eclipsehttps://developer.axonivy.com/doc/latest/DesignerGuideHtml/ivy.concepts.html#ivy-extension-eclipse
[2]: https://developer.axonivy.com/doc/latest/PublicAPI/ch/ivyteam/ivy/server/IServerExtension.html