Last updated Oct 15, 2026

Updates#

Docker stack (Sonarr, Radarr, Prowlarr, SABnzbd, Seerr)#

All automation services use lscr.io/linuxserver/* images tagged as latest. To update them:

cd /path/to/your/docker-compose
docker compose pull
docker compose up -d

This pulls the latest image for each service and recreates any containers whose image changed. Containers that are already on the latest image are left untouched.

Config data lives in /srv/media-stack/config/ and persists across updates because it is mounted as a volume.

Automating updates with Watchtower#

If you want automatic updates without manual intervention, you can run Watchtower↗ as an additional container. It monitors your running containers and pulls new images on a schedule.

watchtower:
  image: containrrr/watchtower
  container_name: watchtower
  volumes:
    - /var/run/docker.sock:/var/run/docker.sock
  environment:
    - WATCHTOWER_SCHEDULE=0 0 4 * * *
    - WATCHTOWER_CLEANUP=true
  restart: unless-stopped

This runs the update check daily at 04:00 and removes old images after updating.

Plex (LXC)#

Plex Media Server on Debian is updated through apt:

apt update
apt install --only-upgrade plexmediaserver

Plex restarts automatically after the upgrade. Active streams may be interrupted briefly.

Automating the Plex update#

On Linux, Plex does not install its own updates. Its built-in updater only tells you that a new version exists, and you get it once Plex publishes the package to its apt repository. That can lag behind the announcement by weeks, so a log line saying the package is already the newest version does not always mean you are current.

A daily cron job in /etc/cron.d/plex-update keeps the container up to date:

30 5 * * * root apt-get update -qq >> /var/log/plex-update.log 2>&1 && apt-get install -y --only-upgrade plexmediaserver >> /var/log/plex-update.log 2>&1

The apt-get update in front matters. A job that only runs apt-get install --only-upgrade relies on something else to refresh the package lists, and in a minimal Debian LXC container nothing does (see Lessons Learned). The file must be owned by root with mode 644, or cron ignores it. --only-upgrade keeps the job from touching any other package.

To check the currently installed version:

dpkg -l plexmediaserver

Plex client apps#

The server and the client apps update separately. A server that works fine can still look broken after a client update, as happened with the redesigned Apple TV and Android TV apps in autumn 2026.

• Apple TV: Settings, Apps, Automatically Update Apps, set to Off.
• Android TV and Shield: in the Play Store, open the Plex app page, open the menu and turn off Enable auto update.
• Read the Plex release notes↗ before you update a device that the whole household uses.

If an update already broke something, Plex's New App Is a Mess explains how to roll back the Apple TV app and what to use instead.

Proxmox host#

Keep the Proxmox host itself updated separately:

apt update && apt upgrade -y

Check the Proxmox changelog↗ before major version upgrades.