If you manage a legacy workstation and want to verify which exact patch level you have, follow these steps:
Adobe Reader XI version , released on November 14, 2017 , is the final planned security and maintenance update for the Adobe Reader XI (11.x) product line. Support Status: End of Life (EOL) adobe reader xi version 11.0.23
: Includes "Protected View" and an "Enhanced Protected Mode" to sandbox the application and prevent data theft. If you manage a legacy workstation and want
If you aren't on 11.0.23 yet, you can try going to Help > Check for Updates within the app, though official download mirrors are increasingly rare. released on November 14