contains MRs: Sherpa_i: sync README with 21.6 https://gitlab.cern.ch/atlas/athena/-/merge_requests/45092 overwrite McEventCollection for afterburner setups (master) https://gitlab.cern.ch/atlas/athena/-/merge_requests/45094 add note about ME-only weights https://gitlab.cern.ch/atlas/athena/-/merge_requests/45116 Adding some more config_only checks in MadGraphControl https://gitlab.cern.ch/atlas/athena/-/merge_requests/45117 add decay channel option for Powheg bb4l module https://gitlab.cern.ch/atlas/athena/-/merge_requests/45160 Herwig7_i compiling PowhegLesHouchesFileReader library with the build https://gitlab.cern.ch/atlas/athena/-/merge_requests/45172 Rivet_i: add alias for old setup script https://gitlab.cern.ch/atlas/athena/-/merge_requests/45177 AtlasHepMC Fix, master branch (2021.07.15.) https://gitlab.cern.ch/atlas/athena/-/merge_requests/45198 GeneratorFilters: MultiCjetFilter (already used in 21.6) added https://gitlab.cern.ch/atlas/athena/-/merge_requests/45233 PowhegControl: Improve CPU+I/O efficiency in renaming LHE weights https://gitlab.cern.ch/atlas/athena/-/merge_requests/45295 (NOTE: will be available starting 22.6.6 !!) correct ParticleGun common fragments to work in rel. 21.6 and 22 https://gitlab.cern.ch/atlas/athena/-/merge_requests/45372 Herwig7_i CMake Fix, master branch (2021.07.22.) https://gitlab.cern.ch/atlas/athena/-/merge_requests/45384 Updating sde_strategy in MGC to old default https://gitlab.cern.ch/atlas/athena/-/merge_requests/45458 Herwig7_i fix clang10 warnings https://gitlab.cern.ch/atlas/athena/-/merge_requests/45473 GeneratorFilters: fix TauFilter and MultiCJetFilter, update https://gitlab.cern.ch/atlas/athena/-/merge_requests/45483 GeneratorFilters: add M4MuIntervalFilter https://gitlab.cern.ch/atlas/athena/-/merge_requests/45490 L1CaloFexSim+Herwig7_i: fix clang warnings https://gitlab.cern.ch/atlas/athena/-/merge_requests/45497 LCG_100_ATLAS_7 - switch to this version to include MG 3.1.2beta version https://gitlab.cern.ch/atlas/athena/-/merge_requests/45498 PowhegControl: fix reweighting issue due to #pdf comments, and expose... https://gitlab.cern.ch/atlas/athena/-/merge_requests/45535