On Fri, Oct 09, 2015 at 04:36:37PM +0200, Zdenek Kabelac wrote: > But in the real-world - version changes, it gets incompatible, > requires some new way how to use it and so on.... This doesn't have to be. It is possible to write libraries, even very complex ones, with endless backwards compatibility. It's what libvirt does. And the kernel (almost always). In fact I'd say breaking your ABI contract continuously is another lazy, poor programming practice. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct