contains MRs: https://gitlab.cern.ch/atlas/athena/-/merge_requests/65684 Merge branch '23.0-McEventCollection_p7-TP-Convertors' into '23.0' https://gitlab.cern.ch/atlas/athena/-/merge_requests/65869 Add support of the serialization of tools to the GenEvent https://gitlab.cern.ch/atlas/athena/-/merge_requests/65982 Drop barcode() for a raw pointer of HepMC3::GenParticle https://gitlab.cern.ch/atlas/athena/-/merge_requests/65711 Sweeping McEventCollection_p7 persistent version and associated TP converter into 23.0 https://gitlab.cern.ch/atlas/athena/-/merge_requests/65990 Remove the HepMC::raw_pointer function and two use cases https://gitlab.cern.ch/atlas/athena/-/merge_requests/65991 Remove the free functions for vertex size in AtlasHepMC https://gitlab.cern.ch/atlas/athena/-/merge_requests/65980 fixing names of weights in NNLOPS reweighting for HJ Powheg https://gitlab.cern.ch/atlas/athena/-/merge_requests/65994 Simplifications in AtlasHepMC/Polarization.h https://gitlab.cern.ch/atlas/athena/-/merge_requests/66020 Herwig7_i: Add the new tune schemes https://gitlab.cern.ch/atlas/athena/-/merge_requests/65711 Sweeping McEventCollection_p7 persistent version and associated TP converter into 23.0 https://gitlab.cern.ch/atlas/athena/-/merge_requests/66050 Introduce AtlasHepMC/Barcode.h header and moveall barcode-related functions there. https://gitlab.cern.ch/atlas/athena/-/merge_requests/66051 Revert "Generators: remove unused generators" https://gitlab.cern.ch/atlas/athena/-/merge_requests/66070 Herwig7_i: Add an option for the shower scale variations https://gitlab.cern.ch/atlas/athena/-/merge_requests/66068 Generators: add missing Base fragment to Sherpa3 integration logic https://gitlab.cern.ch/atlas/athena/-/merge_requests/66084 Use access by reference in AtlasHepMC https://gitlab.cern.ch/atlas/athena/-/merge_requests/66086 Drop the obsolete definitions from HepMCHelpers https://gitlab.cern.ch/atlas/athena/-/merge_requests/65095 Revise how GenParticle status is set for particles created during the simulation https://gitlab.cern.ch/atlas/athena/-/merge_requests/66095 Update GenEvent.h -- fix HepMC2 compilation https://gitlab.cern.ch/atlas/athena/-/merge_requests/66155 Fix ATLASSIM-6895 https://gitlab.cern.ch/atlas/athena/-/merge_requests/66190 Update Particle Decay Filter https://gitlab.cern.ch/atlas/athena/-/merge_requests/66205 Remove specifications for int for functions in TruthUtils and add specification to Barcode.h https://gitlab.cern.ch/atlas/athena/-/merge_requests/66227 Patch for ATLASSIM-6901 https://gitlab.cern.ch/atlas/athena/-/merge_requests/66271 Generators: fix issue with duplicated settings in Sherpa_i https://gitlab.cern.ch/atlas/athena/-/merge_requests/65941 convert ParticleDecayFilter into xAODParticleDecayFilter https://gitlab.cern.ch/atlas/athena/-/merge_requests/66225 Simplify the TruthUtils https://gitlab.cern.ch/atlas/athena/-/merge_requests/66301 update to new LCG layer LCG_102b_ATLAS_29 https://gitlab.cern.ch/atlas/athena/-/merge_requests/65830 Wrapping barcode usage in PileUpTools https://gitlab.cern.ch/atlas/athena/-/merge_requests/66342 Formatting issues in the McEventCollection convertes, give direct access to HepMC2 classes in xAOD https://gitlab.cern.ch/atlas/athena/-/merge_requests/66351 call find module for TheP8I - needed for AGENE-2225 https://gitlab.cern.ch/atlas/athena/-/merge_requests/66348 remove ProtosLHEF_i QGSJet_i and MCTester_i from the repository https://gitlab.cern.ch/atlas/athena/-/merge_requests/66364 CppCheckUninitVar https://gitlab.cern.ch/atlas/athena/-/merge_requests/66384 AtlasHepMC: Fix thread-safety checker warning. https://gitlab.cern.ch/atlas/athena/-/merge_requests/66441 shortcut for 'lhapdf-config --version' call, which is slow and responsible for timeout errors in MG https://gitlab.cern.ch/atlas/athena/-/merge_requests/66413 Cleanup in the MagicNumbers.h https://gitlab.cern.ch/atlas/athena/-/merge_requests/66156 Investigate an option of storing the event weight names in the MCEvent collection