Planner upgrade available -- Changelog link gets a 404/Not Found. Error message says 2015 Apache is running firmware.ardupilot.org

[Mr_Chris (Chris Hawley)]

code>Not Found

The requested URL /MissionPlanner/upgrade/version.txt/ChangeLog.txt was not found on this server.
Apache/2.4.18 (Ubuntu) Server at firmware.ardupilot.org Port 80