NEWS (user visible changes) 1.6.6 (2018-05-02) Add new -n/鈥搉o-line-numbers option (Igor Nikolaev) 1.6.5 (2018-04-23) No user-visible changes, version bump to fix RPM packaging 1.6.4 (2018-04-18) Change default sample rate from 1ms to 10ms (Evan Klitzke) Improved handling of ptrace errors (Steven Karas)