• Support for kernel up to 5.12
• Some basic support for MIPS
• added bpf_map_lookup_batch and bpf_map_delete_batch support
• tools/funclatency.py support nested or recursive functions
• tools/biolatency.py can optionally print out average/total value
• fix possible marco HAVE_BUILTIN_BSWAP redefine warning for kernel >= 5.10.
• new tools: virtiostat
• new libbpf-tools: ext4dist
• doc update and bug fixes