main purpose of the build: ParticleDecayFilter, fix for run number increase (in case of exceeded 32bit integer as eventNumber), writting filter varibales to xAOD::EventInfo Contains MRs: https://gitlab.cern.ch/atlas/athena/-/merge_requests/62350 add ATLAS specific path to LHAPATH and LHAPDF_DATA_PATH for correct functionality of Superchic https://gitlab.cern.ch/atlas/athena/-/merge_requests/62333 Adding the correlations keyword in Powheg fourtops process - AGENE-2128 https://gitlab.cern.ch/atlas/athena/-/merge_requests/62292 Use access by reference in the HepMC helper functions https://gitlab.cern.ch/atlas/athena/-/merge_requests/62297 Explicitly added boost subpackages https://gitlab.cern.ch/atlas/athena/-/merge_requests/62390 Remove find_package(Boost) from packages where boost is not used https://gitlab.cern.ch/atlas/athena/-/merge_requests/62433 Update BSignalFilter.cxx -- fix a 10 y.o. bug. https://gitlab.cern.ch/atlas/athena/-/merge_requests/61914 Workaround jet CA reordering by flattening the accumulator and returning dependencies as is https://gitlab.cern.ch/atlas/athena/-/merge_requests/62468 add parameters needed for a new process implemented in the recent version of SuperChic https://gitlab.cern.ch/atlas/athena/-/merge_requests/62462 Add chain count to mc_newJO tests https://gitlab.cern.ch/atlas/athena/-/merge_requests/62608 Generators: sync Rivet_i README with 21.6 https://gitlab.cern.ch/atlas/athena/-/merge_requests/62545 Add generator filter for particle gun https://gitlab.cern.ch/atlas/athena/-/merge_requests/62666 add missing parameters required by the new Superchic version https://gitlab.cern.ch/atlas/athena/-/merge_requests/62641 Fix for McEventCollectionCnv_p6 https://gitlab.cern.ch/atlas/athena/-/merge_requests/62680 Update to LCG_102b_ATLAS_19 to pick up HepMC3 3.2.6 (ATEAM-904) https://gitlab.cern.ch/atlas/athena/-/merge_requests/62718 correct the parameters order in SuperChicUtils.py https://gitlab.cern.ch/atlas/athena/-/merge_requests/62702 23.0-coverity-TruthRivetTools https://gitlab.cern.ch/atlas/athena/-/merge_requests/62702 23.0-coverity-TruthRivetTools https://gitlab.cern.ch/atlas/athena/-/merge_requests/62769 GeneratorFilters: Fix clang warning. https://gitlab.cern.ch/atlas/athena/-/merge_requests/62776 DataPool : Add prepareToAdd (migrate one usage) rm methods commented as dangerous, update test https://gitlab.cern.ch/atlas/athena/-/merge_requests/62858 Try to fix the failures in the HepMC2 build https://gitlab.cern.ch/atlas/athena/-/merge_requests/62876 GeneratorFilters xAODMETFilter and xAODHTFilter put filter variables into xAOD::EventInfo https://gitlab.cern.ch/atlas/athena/-/merge_requests/62883 Proper usage of M_PI in the Generator filters https://gitlab.cern.ch/atlas/athena/-/merge_requests/62878 Generators: reinstate xAOD::Truth-to-HepMC::GenEvent conversion https://gitlab.cern.ch/atlas/athena/-/merge_requests/62906 Update Rivet_i.cxx : removed unneeded try/catch and used const auto& for the loops. https://gitlab.cern.ch/atlas/athena/-/merge_requests/62917 Checking return codes in MadGraphControl https://gitlab.cern.ch/atlas/athena/-/merge_requests/62951 GenFilterTool - Declare data dependenies https://gitlab.cern.ch/atlas/athena/-/merge_requests/62979 GeneratorFilters: allow to keep all events, EvgenJobTransforms: fix on...