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Point the Pythia8+EvtGen sample generation section at the rolling "latest" Key4hep stack instead of the 2022-12-23 pinned release, and switch the FCC-config download links to the `pre_summer2026` branch, which has the current Delphes/EDM4hep cards for this workflow.
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Refresh the stale sourcing banner and `which DelphesPythia8_EDM4HEP` example path in section 2.2.1, and switch the IDEA Delphes/EDM4hep card download links from `winter2023` to `pre_summer2026`, matching the 2.2.2 update. The ZH/ZZ/WW Pythia8 cards stay on `winter2023`, which has newer versions of those specific files.
It's no longer a legacy alias: it sets up the Key4hep stack plus FCC-specific additions on top of it. For the purposes of these tutorials the two setup methods remain equivalent, so keep both documented without implying one is deprecated.
The card_IDEA.tcl/edm4hep_IDEA.tcl and ZH/ZZ/WW generator card update (HEP-FCC/FCC-config#393) is merged into main, so all FCC-config download links in this tutorial can now point to a single branch instead of the mixed winter2023/pre_summer2026 references.
BrieucF
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Sep 24, 2026
| source /cvmfs/fcc.cern.ch/sw/latest/setup.sh | ||
| ``` | ||
| is still available. | ||
| sets up the Key4hep stack together with FCC-specific additions on top of it; for the purposes of this tutorial the two are equivalent. |
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How can it be? /cvmfs/fcc.cern.ch/sw/latest/setup.sh is a symlink to /cvmfs/sw.hsf.org/key4hep/setup.sh
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Points the Pythia8+EvtGen sample generation section (2.2.2) of the fast simulation tutorial at the rolling
latestKey4hep stack instead of the pinned 2022-12-23 release, and switches the FCC-config download links to themainbranch, which has the current Delphes/EDM4hep cards for this workflow.