Updates on the Performance and Calibration of HST/STIS

The Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST) has been on orbit for almost 19 years and continues to produce high quality scientific results using a diverse complement of operating modes. These include spatially resolved spectroscopy in the UV and optical, high spatial resolution echelle spectroscopy in the UV, and solar-blind imaging in the UV. In addition, STIS possesses unique visible-light coronagraphic modes that keep the instrument at the forefront of exoplanet and debris-disk research. As the instrument's characteristics evolve over the instrument's lifetime, the instrument team at Space Telescope Science Institute monitors its performance and works towards improving the quality of its products. Here we present updates on the status of the STIS CCD and FUV & NUV MAMA detectors, as well as changes to the CalSTIS reduction pipeline and available instrument modes. We present on-going work to calibrate the BAR5 occulter, as well as calibration improvements for the echelle gratings.