el9 release to finally validate generators and tools for el9 configuration, no new generator versions compared to the previous release Contains MRs: https://gitlab.cern.ch/atlas/athena/-/merge_requests/67708 Adding Contur package for BSM interpretation using SM measurements https://gitlab.cern.ch/atlas/athena/-/merge_requests/67739 Replace checks on hard-coded PDG code values with MC:: functions https://gitlab.cern.ch/atlas/athena/-/merge_requests/67768 GeneratorObjectsTPCnv: cmake fix https://gitlab.cern.ch/atlas/athena/-/merge_requests/67776 Starlight: enabling variation of beam energy in LHE event record mode