The Million Quasars (Milliquas) v7.2 Catalogue, now with VLASS
  associations. The inclusion of SDSS-DR16Q quasars is detailed
  Announcing the release v7.2 of the Milliquas (Million Quasars) catalogue
which presents all published quasars to 30 April 2021, including VLASS radio
associations for the first time, and concluding the audit of quasars from
SDSS-DR16Q and earlier SDSS releases. The totals are 829666 classified type-I
QSOs/AGN, 703348 quasar candidates of 60%-100% pQSO, plus type-II objects and
blazars which bring the total count to 1573824. Radio and/or X-ray
associations, including probable double radio lobes, are shown for 333638
entries. Gaia-DR2 astrometry is given for most objects, as available. The
catalogue is available on multiple sites.
  The inclusion of the SDSS-DR16Q quasars was a complex task with emergent
issues which resulted in 13443 DR16Q entries being dropped, 1.79% of their
total. There are also 1701 quasars included from earlier visual SDSS releases,
as well as 14232 quasars from the SDSS-DR16 pipeline catalogue. All these are
explained here, including the validation of 677 additional high-redshift
(z>=3.5) SDSS quasars which were not included in DR16Q.
