bcc release v0.30.0

  * Support for kernel up to 6.8.
  * Set minimum supported llvm version to 12, and add llvm17 test.
  * Add workqueue latency observation tool.
  * libbpf tool update: f2fsslower, opensnoop, futexctn, bindsnoop, ksnoop, klockstat, offcputime, etc.
  * bcc tool update: memleak, ttysnoop, bashreadline, tcpdrop, execsnoop, etc.
  * allow more flexible perf event options with new perf_custom_event_open() python API.
  * Fix userspace stack unwinding on powerpc.
  * add bpf_prog_test_run_opts() python API.
  * several deb package related changes.
  * Fix btf_type_tag issue with llvm 15.
  * Fix several flaky tests.
  * classify tools into different sub-categories.
  * doc update, other bug fixes and tools improvement.

bcc release v0.29.1

A minor release to fix two issues below on top of v0.29.0:

• python/cmake: remove extraneous comma between variables
• *.py: fix "SyntaxWarning: invalid escape sequence" when using Python 3.12

bcc release v0.29.0

  * Support for kernel up to 6.6.
  * new bcc tools: rdmaucma
  * new libbpf tools: f2fs, futexctn
  * bcc tool update: tcpstates, statsnoop, runqlat, bio tools, tcptop, slabratetop, tcprtt, etc.
  * libbpf tool update: tcprtt, tcppktlat, bio tools, execsnoop, bindsnoop, exitsnoop, etc.
  * s390x support for libbpf-tools
  * examples for perf/ipc
  * expose pid parameter in bpf_open_perf_event
  * allow for installing python as a non-system package
  * ci improvement: deprecate ubuntu 18.04 and allow multiple llvm versions
  * ci improvement: reitre fedora 34/26 and use fedora 38.
  * fix misaligned pointer accesses in some ringbuf using libbpf-tools
  * some new  enhancement for powerpc and riscv.
  * consolidate tools into different categories: filesystem/storage, networking, cpu and scheduling, etc.
  * doc update, other bug fixes and tools improvement

bcc release v0.28.0

• Support for kernel up to 6.3.
• new libbpf tool: tcppktlat.
• bcc tool updates: funcslower, wakeuptime, profile, offcputime, deadlock, funccount, argdist, kvmexit, runqlen and cpuunclaimed.
• libbpf tool update: memleak, tcprtt, tcpconnlat, funclatency, syscount, cpufreq, biosnoop.
• support ringbuf_query for bcc tools.
• handle '[uprobes]' memory mapped file properly during stack tracing.
• Fix maximum allowed index for print_linear_hist for bcc tools.
• add module kfunc/kretfunc support.
• clang rewriter: initialize only the requested parameters
• filter with available_filter_functions to make multi-functions kprobes more robust for both bcc and libbpf tools.
• doc update, other bug fixes and tools improvement

bcc release v0.27.0

  * Support for kernel up to 6.2
  * bcc tool updates for ttysnoop, slabratetop, readahead, nfsslower, cpudist, cachetop, cachestat, etc.
  * libbpf-tools updates for mdflush, drsnoop, statsnoop, ttysnoop, softirqs, wakeuptime, cachestat, numamove, etc.
  * fix for incomplete static libraries
  * implement zip archive support
  * upgrade to use c++14 standard
  * new libbpf-tools: memleak
  * add loongarch support in libbpft-tools
  * doc update, bug fixes and other tools improvement

bcc release v0.26.0

  * Support for kernel up to 6.1
  * bcc tool updates for biosnoop, opensnoop, biopattern, killsnoop, runqslower, offcputime, wakeuptime, etc.
  * libbpf-tools updates for klockstat, sigsnoop, hardirqs, softirqs, opensnoop, statsnoop, offcputime, tcplife, cpufreq, cpudist, etc.
  * new libbpf-tools: tcptop, tcpstates, biotop, capable
  * ci: add support for fedora 36 container and new workflow for containers
  * doc update, bug fixes and other tools improvement

bcc release v0.25.0

  * Support for kernel up to 5.19
  * bcc tool updates for oomkill.py, biolatpcts.py, sslsniff.py, tcpaccept.py, etc.
  * libbpf tool updates for klockstat, opensnoop, tcpconnect, etc.
  * new bcc tools: tcpcong
  * new libbpf tools: tcpsynbl, mdflush, oomkill, sigsnoop
  * usdt: support xmm registers as args for x64
  * bpftool as a submodule now
  * remove uses of libbpf deprecated APIs
  * use new llvm pass manager
  * support cgroup filtering libbpf tools
  * fix shared lib module offset <-> global addr conversion
  * riscv support
  * LoongArch support
  * doc update, bug fixes and other tools improvement

bcc release v0.24.0

  * Support for kernel up to 5.16
  * bcc tools: update for trace.py, sslsniff.py, tcptop.py, hardirqs.py, etc.
  * new libbpf tools: bashreadline
  * allow specify wakeup_events for perf buffer
  * support BPF_MAP_TYPE_{INODE, TASK}_STORAGE maps
  * remove all deprecated libbpf function usage
  * remove P4/B language support
  * major test infra change, using github actions now
  * doc update, bug fixes and other tools improvement

bcc release v0.23.0

• Support for kernel up to 5.15
• bcc tools: update for kvmexit.py, tcpv4connect.py, cachetop.py, cachestat.py, etc.
• libbpf tools: update for update for mountsnoop, ksnoop, gethostlatency, etc.
• fix renaming of task_struct->state
• get pid namespace properly for a number of tools
• initial work for more libbpf utilization (less section names)
• doc update, bug fixes and other tools improvement

bcc release v0.22.0

• 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