  The GlueX experiment is located in experimental Hall D at Jefferson Lab
(JLab) and provides a unique capability to search for hybrid mesons in
high-energy photoproduction, utilizing a ~9 GeV linearly polarized photon beam.
The initial, low-intensity phase of GlueX was recently completed and a
high-intensity phase has begun in 2020 which includes an upgraded kaon
identification system, known as the DIRC (Detection of Internally Reflected
Cherenkov light), utilizing components from the decommissioned BaBar DIRC. The
identification of kaon final states will significantly enhance the GlueX
physics program, to aid in inferring the quark flavor content of conventional
(and potentially hybrid) mesons. In these proceedings we describe the
installation of the GlueX DIRC and the analysis of initial commissioning data
