contains MRs: https://gitlab.cern.ch/atlas/athena/-/merge_requests/50077 Pythia8: update Pythia8_A3_NNPDF23LO_Common fit parameters https://gitlab.cern.ch/atlas/athena/-/merge_requests/50124 Added fragment and README section for Pythia8 hadronization interface https://gitlab.cern.ch/atlas/athena/-/merge_requests/50206 Update README.md https://gitlab.cern.ch/atlas/athena/-/merge_requests/50367 allow Sherpa to save and restore RNG status https://gitlab.cern.ch/atlas/athena/-/merge_requests/50650 add ART tests convertion HepMC file to EVNT one https://gitlab.cern.ch/atlas/athena/-/merge_requests/50660 PowhegControl: fixing error messages from MadSpin, adding Wt_DR_Modified - AGENE-2132 AGENE-2131 update to Sherpa 2.2.12.f290b9