We report the status and progress of the Heavy Flavour Averaging Group work
on the global fit of tau lepton branching fractions, on the lepton universality
tests and on the measurement of the Cabibbo-Kobayashi-Maskawa matrix element
|Vus| using tau lepton measurements. We also review the prospects for improving
the precision of the |Vus| measurement.Comment: 6 pages, 2 figures, contribution to the proceedings of the
International Workshop on e+e- collisions from Phi to Psi 2017, Mainz,
Germany Revision v2: updated the text to reflect the revision
arXiv:1702.01767v2 [hep-ph] published as Phys. Lett. B781, 206 (2018
