• Support for kernel up to 5.14
• add ipv4/ipv6 filter support for tcp trace tools
• add python interface to attach raw perf events
• fix tcpstates for incorrect display of dport
• new options for bcc tools runqslower, argdist
• new libbpf-tools: filetop, exitsnoop, tcprtt
• doc update, bug fixes and other tools improvement