  HD 100546 is a young, early-type star and key laboratory for studying gas
giant planet formation. GPI data taken in 2015 and reported by Currie et al.
(2015) recover the previously-identified protoplanet candidate HD 100546 b and
identify a second emission source at ~13--14 au: either a disk hot spot or a
second protoplanetary candidate (HD 100546 "c").
  In this short research note, we update the status of HD 100546 as observed by
the Gemini Planet Imager by rereducing our original data using a different PSF
subtraction method (KLIP instead of A-LOCI), rereducing recently public GPI
Campaign Team (GPIES) data, and comparing the quality of the two data sets. Our
results support the original findings in Currie et al. (2015).
