  The lepton-proton collisions produced at the HERA collider represent a unique
high energy physics data set. A number of years after the end of collisions,
the data collected by the H1 experiment, as well as the simulated events and
all software needed for reconstruction, simulation and data analysis, were
migrated into a preserved operational mode at DESY. A recent modernisation of
the H1 software architecture has been performed, which will not only facilitate
on going and future data analysis efforts with the new inclusion of modern
analysis tools, but also ensure the long-term availability of the H1 data and
associated software. The present status of the H1 software stack, the data,
simulations and the currently supported computing platforms for data analysis
activities are discussed.
