Include:Upgrading to Edge
An upgrade of Alpine Linux from a stable version to the rolling development version edge basically requires the same steps as Upgrading to latest release.
The crucial difference is, that when editing the /etc/apk/repositories file, all referenced repository versions (such as v3.21
or latest-stable
) therein need to be pointing to edge
as follows.
Contents of /etc/apk/repositories
When using edge branch, testing repository can be added as shown above. Installing packages from testing repository with Edge branch and submitting bug reports is one of the best ways to contribute to Alpine Linux. Remember that, packages in testing repository have no support.

After upgrading to edge, the currently installed edge version i.e the build date that is attached to the edge release may be checked with command:
$ cat /etc/alpine-release