Since resuming operation for Run 2, the Large Hadron Collider (LHC) has been producing about 20,000 Higgs bosons per day in its 13 TeV proton–proton collisions. At the end of 2015, the data collected by the ATLAS and CMS collaborations were already sufficient for new observations of the Higgs boson at the new collision energy. Now, having recorded more than 36,000 trillion collisions between 2015 and 2016, the ATLAS experiment can perform ever more precise measurements of the properties of the Higgs boson.