Changes since CMSSW_13_0_19_HeavyIon:
CMSSW_13_0_19_HeavyIon...CMSSW_13_0_20_HeavyIon
- #45468 from @hjbossi: Make Pythia8 Photon Flux more configurable.
generators
- #45241 from @Dominic-Stafford: Herwig LHE matching fix and Matchbox relval for 13_0
generators
pdmv
upgrade
CMSDIST Changes between Tags REL/CMSSW_13_0_19_HeavyIon/el8_amd64_gcc11 and REL/CMSSW_13_0_20_HeavyIon/el8_amd64_gcc11:
- cms-sw/cmsdist#9247 from @Dominic-Stafford: Missing Herwig backports for 13_0 (2023 gen production)