contains MRs: https://gitlab.cern.ch/atlas/athena/-/merge_requests/48835 CavernBkgGenerator: Fix cppcheck warnings. https://gitlab.cern.ch/atlas/athena/-/merge_requests/48845 Squash 48723 https://gitlab.cern.ch/atlas/athena/-/merge_requests/48864 Powheg : update version, AthGeneration: update version https://gitlab.cern.ch/atlas/athena/-/merge_requests/48876 Generators: workaround for SPGs https://gitlab.cern.ch/atlas/athena/-/merge_requests/48895 GeneratorFilters: add TTbarWithJpsimumuFilter https://gitlab.cern.ch/atlas/athena/-/merge_requests/48899 Revert the introduced bug with the units. in Sherpa https://gitlab.cern.ch/atlas/athena/-/merge_requests/48925 Fix syntax sugar for HepMC3/HePMC2 https://gitlab.cern.ch/atlas/athena/-/merge_requests/48975 Particle Gun: fix energy units for HepMC3 https://gitlab.cern.ch/atlas/athena/-/merge_requests/48979 Bugfix of Tauola interface. https://gitlab.cern.ch/atlas/athena/-/merge_requests/49052 EvgenProdTools+FourMomUtils+G4AtlasTests+TBRec: Fix clang13 warnings. https://gitlab.cern.ch/atlas/athena/-/merge_requests/49060 Update TTbarWithJpsimumuFilter.cxx https://gitlab.cern.ch/atlas/athena/-/merge_requests/49069 Add proper treatment of units and masses to Photos interface. (AGENE-2125) https://gitlab.cern.ch/atlas/athena/-/merge_requests/49072 Fixed Photos interface formatting https://gitlab.cern.ch/atlas/athena/-/merge_requests/49082 PowhegControl correct version and path setup, ParticleGun withdraw previous changes https://gitlab.cern.ch/atlas/athena/-/merge_requests/49114 Fix units in photos https://gitlab.cern.ch/atlas/athena/-/merge_requests/49116 TrackCaloClusterRecTools+PanTauAlgs+OjfJet+GeneratorFilters: Fix clang13 warnings. https://gitlab.cern.ch/atlas/athena/-/merge_requests/49129 SuperChic fix python problem https://gitlab.cern.ch/atlas/athena/-/merge_requests/49189 Epos_i fix interface to work with the new version, SuperChic_i a fix to make... https://gitlab.cern.ch/atlas/athena/-/merge_requests/49224 Use stock interfaces to external generators in the EvtGen interface https://gitlab.cern.ch/atlas/athena/-/merge_requests/49234 add xAODM4MuIntervalFilter https://gitlab.cern.ch/atlas/athena/-/merge_requests/49304 Add a set of harmonised MC filters https://gitlab.cern.ch/atlas/athena/-/merge_requests/49360 add 3 xaodtruth filters, add existing filters in components https://gitlab.cern.ch/atlas/athena/-/merge_requests/49441 GeneratorFilters: Fix clang warnings.