contains MRs: https://gitlab.cern.ch/atlas/athena/-/merge_requests/62990 21.6 superchic datacard2 https://gitlab.cern.ch/atlas/athena/-/merge_requests/63276 EvgenJobTransforms : allow for production with EventNumber up to max value of Int32 https://gitlab.cern.ch/atlas/athena/-/merge_requests/63329 EvgenJobTransforms: remove unneeded indent https://gitlab.cern.ch/atlas/athena/-/merge_requests/63200 MGC: Force b massless with 5FS in SUSY MGC includes https://gitlab.cern.ch/atlas/athena/-/merge_requests/64120 PowhegControl: adding mass_rwg_frac parameter in gg4l process - AGENE-2207 https://gitlab.cern.ch/atlas/athena/-/merge_requests/64986 Implement stop decay polariation and three-body neutralino decay kinematics in Pythia8 https://gitlab.cern.ch/atlas/athena/-/merge_requests/64892 Herwig7_i support for showering LHE files generated from a UFO file containting BSM particle