The old classic BPF is still used by seccomp, but in the kernel transparently converted into eBPF. In the kernel we dropped the notion of eBPF and just call eve

The old classic BPF is still used by seccomp, but in the kernel transparently converted into eBPF. In the kernel we dropped the notion of eBPF and just call everything BPF (as the old classic BPF is pretty much a thing of the past and not extended / developed any further).