I am using @ChuckPa 's DockerPlex shell script on a TS-453D. I installed this and enabled HW acceleration a week or so ago.
I just saw the PMS says I should update.
I downloaded the .deb and tried to do a manual install. It gave me an error - “due to file format error”.
I have updated this way (pre Docker) before. Not sure of the procedure to update now that it’s running in a container.