CMSSW_9_4_21

Changes since CMSSW_9_4_20:

compare to previous

1. 33862 from @silviodonato: bug-fix for infinite loop in MuonSimClassifier.cc [94X backport] simulation created: 2021-05-27 12:32:45 merged: 2021-05-29 13:25:14

2. 33494 from @wddgit: Backport, Add number of events, beginLumi’s, and beginRun’s to JobReport core created: 2021-04-21 20:58:40 merged: 2021-04-22 08:22:23

3. 33492 from @Dominic-Stafford: Upgrade 9_4_X to Herwig 7.2 generators pdmv upgrade created: 2021-04-21 18:09:36 merged: 2021-05-03 08:56:01

CMSDIST Changes between Tags REL/CMSSW_9_4_20/slc6_amd64_gcc630 and REL/CMSSW_9_4_21/slc6_amd64_gcc630:

compare to previous

1. 6829 from @Dominic-Stafford: Upgrade Herwigpp to Herwig 7.2, in 9_4_X created: 2021-04-21 18:12:28 merged: 2021-05-03 12:01:54