- perf ([5.15](https://kernelnewbies.org/LinuxChanges#Linux_5.15.Tracing.2C_perf_and_BPF))
- iproute2 ([5.15](https://lwn.net/ml/linux-kernel/20211101164705.6f4f2e41%40hermes.local/))
- Linux headers ([5.15](https://lwn.net/Articles/876611/))
