So this is one of the coolest things about Fedora Silverblue (apart from the excellent stability, speed, and gorgeous stock GNOME 42): the first entry you see is today’s operating system. The second one is yesterday’s. If I wanted to, I could revert to the latter with a single command.

#fedora #silverblue #versioning #rpm #ostree #linux

Interesting idea:

@tomasino and @rysiek on Contract Based Dependency Management

https://labs.tomasino.org/contract-based-dependency-management/

https://rys.io/en/156.html

Quoting Rysiekúr for a definition:

"The basic idea boils down to this: when deciding if a given version of a given dependency is compatible with a dependent piece of software, instead of relying on version numbers – rely on tests that actually verify the functionality and behaviour that piece of software actually depends on"

#versioning #testing #TDD #semver #CBDM