layout	title
default	Release Notes - Mock v4.1

Released on 2023-06-05.

Mock v4.1 new features:

The /bin/dnf path can be either provided by DNF5 on newer systems (Fedora 39+), or by DNF4 on older systems. The detection of /bin/dnf though wasn't ideal. Newly, if DNF4 is requested, Mock searches for the /bin/dnf-3 script instead. Also, when installing DNF4 into a bootstrap chroot, python3-dnf is installed instead of just dnf which might install DNF5.
We newly allow installing the bootstrap chroot using /bin/dnf5 as fallback, if the requested package manager is not found on host (e.g. if package_manager=dnf is set for particular chroot, but only DNF5 is available on host, i.e. the future systems). Previous version of Mock would just fail verbosely.
The mock.rpm runtime dependencies were changed and relaxed. We newly don't strictly require any of the package managers. Having dnf5 or python3-dnf installed on host is just a Suggested thing, and it is newly up to the user to install one of them (on Fedora 39+, DNF5 will be more commonly the choice). Strictly speaking, with the --use-bootstrap-image feature, no package manager on host is needed at all.
We use the same package manager search logic for bootstrap, non-bootstrap or bootstrap image use-cases.

Mock v4.1 bugfixes:

The Mock v4.0 broken chroot configurations with custom SSL certificates and bootstrap (the certificates were not copied into the bootstrap chroot correctly). This problem has been fixed.
The bind_mount plug-in newly pre-creates the destination directory in-chroot for bind-mounted files. See PR#1093 for more info.
The --dnf-cmd option was fixed for the revamped package_manager detection logic. See PR#1087 for more info.