To ensure that builds on Codemagic run with the highest levels of reliability and security, we are deprecating Linux build machines running Ubuntu 20.04.
Starting February 23, 2026, build machines running Ubuntu 20.04 will be removed from the pool, and Ubuntu 24.04 will become the new default for Linux builds.
During the transition period, we will conduct several brownouts during which builds will fail for users who have explicitly set 20.04 as the Ubuntu version in their codemagic.yaml. We strongly recommend migrating to Ubuntu 24.04 as soon as possible to avoid disruptions.
There will be no change for Flutter Workflow Editor users or for codemagic.yaml users who are using the default machine type until the default is switched. After that point, all Linux builds will run on Ubuntu 24.04.