Upgrading Pi-hole is easy:

pihole -up

However, this doesn't work if you're running a Docker container.

docker exec -it pihole pihole -up
Function not supported in Docker images

To get Pi-hole Docker container upgraded, you have to force Docker to pull the latest Pi-hole version and redeploy the container.

docker pull …

I was on my mobile, looking up a few recipes, I was amazed at the number of intrusive ads I was getting, which made reading the web pages almost impossible.

Decided it was time to investigate Pi-hole, as I'd heard good things about it.

The Pi-hole is a DNS sinkhole that protects your devices from unwanted content, …