v3.18.0

Fixed

• CPU per core cycle and instruction counters were incorrect. The system totals
  reflected the appropriate value. (#304)

Added

• Allow setting the metric snapshot interval to better address cases where
  metrics are not scraped on a secondly basis. (#286)
• Network carrier change metric. (#290)

Changed

• Explicitly use relaxed atomics in BPF samplers. (#276)
• Split syscall sampler into syscall_latency and syscall_counts to allow more
  fine-grained configuration and allow for reduced overhead. (#298)
• Split block_io latency sampler into block_io_latency and block_io_requests to
  allow more fine-grained configuration and allow for reduced overhead. (#299)