• Support for kernel up to 5.9
• usdt: add uprobe refcnt support
• use newer llvm/clang versions in debian packaging if possible
• add bpf iterator C++ support
• new bcc tools: tcprtt, netqtop, swapin, tcpsynbl, threadsnoop
• tcpconnect: add DNS correlation to connect tracking
• new libbpf-tools: llcstat, numamove, runqlen, runqlat, softirgs, hardirqs
• doc update, bug fixes and some additional arguments for tools