Upgrading Debian 12 to Debian 13

Many people might panic, when it comes to upgrades, but Debian is one of the easiest Linux distributions to upgrade.

The easiest way to upgrade Debian to a next version is to open the file called sources.list:

sudo nano /etc/apt/sources.list

Now that you have that file open, replace all bookworm(s) to trixie and save the file.

Then run the following commands:

sudo apt update && sudo apt upgrade

Then run the following command:

sudo apt full-upgrade

Note: this (mostly) worked on our local Virtualbox Debian installation and to our VPS.

For Raspberry Pi, you might be interested in these links:

• HOWTO: Upgrade Raspberry Pi OS from Bookworm to Trixie
• Updating to Trixie