  We present deep, full-sky maps built from Wide-field Infrared Survey Explorer
(WISE) and NEOWISE exposures spanning the 2010 January - 2020 December time
period. These coadds, which incorporate roughly 8 years of W1 (3.4 microns) and
W2 (4.6 microns) imaging, are the deepest ever full-sky maps at wavelengths of
3-5 microns. Photometry based on these coadds will be a component of DESI
Legacy Imaging Surveys DR10.
