Performance of the CMS endcap muon detector in Run 2

Since the end of LHC Run 1 in 2012, the readout electronics of the innermost ring of the CMS Cathode Strip Chambers (CSC) endcap muon detector have been upgraded to accommodate the larger luminosity and collision energy anticipated in Run 2. A major effort was required to design, install, and commission these new electronics. This talk will summarize the improvements made during this upgrade and present the performance of the CSC detector during the early stages of Run 2.