  The sheer number of new gamma-ray pulsar discoveries by the Fermi Large Area
Telescope since 2008, combined with the quality of new multi-frequency data,
has caused a revolution in the field of high-energy rotation-powered pulsars.
These rapidly rotating neutron stars exhibit rich spectral and temporal
phenomenology, indicating that there are still many unsolved mysteries
regarding the magnetospheric conditions in these stars - even after 50 years of
research! Indeed, 2017 marks the golden anniversary of the discovery of the
first radio pulsar, and theorists and observers alike are looking forward to
another half-century of discovery, with many new experiments coming online in
the next decades. In this review paper, we will briefly summarise recent HE
pulsar observations, mention some theoretical models that provide a basic
framework within which to make sense of the varied measurements, and finally
review some of the latest theoretical developments in pulsar emission
modelling.
