NEWS (user visible changes)

1.6.6 (2018-05-02)

Add new -n/–no-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)