Concluding Henrietta Leavitt's Work on Classical Cepheids in the
  Magellanic System and Other Updates of the OGLE Collection of Variable Stars
  More than a century ago, Henrietta Leavitt discovered the first Cepheids in
the Magellanic Clouds together with the famous period-luminosity relationship
revealed by these stars, which soon after revolutionized our view of the
Universe. Over the years, the number of known Cepheids in these galaxies has
steadily increased with the breakthrough in the last two decades thanks to the
new generation of large-scale long-term sky variability surveys.
  Here we present the final upgrade of the OGLE Collection of Cepheids in the
Magellanic System which already contained the vast majority of known Cepheids.
The updated collection now comprises 9649 classical and 262 anomalous Cepheids.
Type-II Cepheids will be updated shortly. Thanks to high completeness of the
OGLE survey the sample of classical Cepheids includes virtually all stars of
this type in the Magellanic Clouds. Thus, the OGLE survey concludes the work
started by Leavitt.
  Additionally, the OGLE sample of RR Lyrae stars in the Magellanic System has
been updated. It now counts 46 443 variables. A collection of seven anomalous
Cepheids in the halo of our Galaxy detected in front of the Magellanic Clouds
is also presented.
  OGLE photometric data are available to the astronomical community from the
OGLE Internet Archive. The time-series photometry of all pulsating stars in the
OGLE Collection has been supplemented with new observations.
