  GLINT is a nulling interferometer downstream of the SCExAO
extreme-adaptive-optics system at the Subaru Telescope (Hawaii, USA), and is a
pathfinder instrument for high-contrast imaging of circumstellar environments
with photonic technologies. GLINT is effectively a testbed for more stable,
compact, and modular instruments for the era of 30m-class telescopes. GLINT is
now undergoing an upgrade with a new photonic chip for more achromatic nulls,
and for phase information to enable fringe tracking. Here we provide an
overview of the motivations for the GLINT project and report on the design of
the new chip, the on-site installation, and current status.
