This is mainly a bugfix release, but a few long-deprecated pieces of API were finally removed after cutting v0.9.0.

These should be trivial to fix up, since they were simply moved or replaced by similar interfaces.

Enjoy!

Breaking Changes

• Deprecations:
  • ebpf.ErrNotExist was removed, as it was an alias to os.ErrNotExist
  • Map.ID() in favor of Map.Info().ID()
  • Program.ID() in favor of Program.Info().ID()
  • Program.Attach() and .Detach() in favor of link.RawAttachProgram() and link.RawDetachProgram() respectively
  • link.LoadPinned{Cgroup,Iter,RawLink,NetNs,Freplace} in favor of a single link.LoadPinnedLink()
  • link.RawLinkInfo was removed, as it was an alias to link.Info
• UprobeOptions.Offset is now a relative field, with the new .Address being an absolute offset.

What's Changed

• Remove API deprecated in v0.8.0 by @lmb in https://github.com/cilium/ebpf/pull/684
• program: Add TestWithOptions() API by @danobi in https://github.com/cilium/ebpf/pull/647
• prog: Avoid allocating for ctx if ctx not provided by @danobi in https://github.com/cilium/ebpf/pull/687
• btf: add Array.Index by @lmb in https://github.com/cilium/ebpf/pull/689
• btf: add btfInt by @lmb in https://github.com/cilium/ebpf/pull/690
• Add RelativeOffset field to UprobeOptions struct by @mertyildiran in https://github.com/cilium/ebpf/pull/682
• program: remove references from ProgramSpec by @lmb in https://github.com/cilium/ebpf/pull/679
• map: suggest incorrect MaxEntries on EINVAL by @markpash in https://github.com/cilium/ebpf/pull/697
• internal/sys: regenerate types by @florianl in https://github.com/cilium/ebpf/pull/700
• link: close tracefs event if perf event cannot be opened by @nashuiliang in https://github.com/cilium/ebpf/pull/699
• Revert ".semaphore - workaround to update ca-certificates before apt-get update" by @lmb in https://github.com/cilium/ebpf/pull/703
• run-tests: fix shebang to find bash more reliably by @markpash in https://github.com/cilium/ebpf/pull/702
• examples: add map in map example by @markpash in https://github.com/cilium/ebpf/pull/696
• btf: fix NewHandleFromID and add test by @lmb in https://github.com/cilium/ebpf/pull/704
• sycall should be syscall. by @shepf in https://github.com/cilium/ebpf/pull/707
• CI: load bpf_testmod in VM by @lmb in https://github.com/cilium/ebpf/pull/709
• internal: make VerifierError more succinct by @lmb in https://github.com/cilium/ebpf/pull/688
• examples: add example for XDP by @wedaly in https://github.com/cilium/ebpf/pull/706
• btf: simplify loadRawSpec by @lmb in https://github.com/cilium/ebpf/pull/708
• Remove 4.4 from CI by @lmb in https://github.com/cilium/ebpf/pull/710
• map: Do not chec maxEntries for PerfEventArray map by @olsajiri in https://github.com/cilium/ebpf/pull/714
• link/kprobe: skip offset test on kernel version > 5.15 by @mmat11 in https://github.com/cilium/ebpf/pull/719
• Avoid leaking fds in test suite and NewMapWithOptions() by @ti-mo in https://github.com/cilium/ebpf/pull/725
• btf: Add support for loading split BTF by @brb in https://github.com/cilium/ebpf/pull/691
• prog: Allow empty data for prog.Test and prog.Run by @danobi in https://github.com/cilium/ebpf/pull/685
• internal: avoid sign extension of Statfs_t.Type on 32 bit arches by @lmb in https://github.com/cilium/ebpf/pull/727
• link: unify KprobeOptions.Offset and UprobeOptions.Offset by @lmb in https://github.com/cilium/ebpf/pull/694
• collection: close all unassigned resources before returning from LoadAndAssign by @ti-mo in https://github.com/cilium/ebpf/pull/724
• btf: add Enum.Size by @lmb in https://github.com/cilium/ebpf/pull/735
• btf: use ci-kernels to source kernel BTF by @lmb in https://github.com/cilium/ebpf/pull/731
• asm: update BPF built-in functions by @rgo3 in https://github.com/cilium/ebpf/pull/734
• program: add getter for btf.Handle by @lmb in https://github.com/cilium/ebpf/pull/730
• btf: fix NewHandleFromID for kernel modules by @lmb in https://github.com/cilium/ebpf/pull/729
• internal: include previous line on BPF context access error by @lmb in https://github.com/cilium/ebpf/pull/733

New Contributors

• @danobi made their first contribution in https://github.com/cilium/ebpf/pull/647
• @mertyildiran made their first contribution in https://github.com/cilium/ebpf/pull/682
• @nashuiliang made their first contribution in https://github.com/cilium/ebpf/pull/699
• @shepf made their first contribution in https://github.com/cilium/ebpf/pull/707
• @wedaly made their first contribution in https://github.com/cilium/ebpf/pull/706
• @olsajiri made their first contribution in https://github.com/cilium/ebpf/pull/714

Full Changelog: https://github.com/cilium/ebpf/compare/v0.9.0...v0.9.1