• Use error.object per OpenTracing Semantic Conventions (#179) -- Rahman Syed
• Convert nil pointer log field value to string "nil" (#230) -- Cyril Tovena
• Add Go module support (#215) -- Zaba505
• Make SetTag helper types in ext public (#229) -- Blake Edwards
• Add log/fields helpers for keys from specification (#226) -- Dmitry Monakhov
• Improve noop impementation (#223) -- chanxuehong
• Add an extension to Tracer interface for custom go context creation (#220) -- Krzesimir Nowak
  • Restore the ability to reset the current span in context to nil (#231) -- Yuri Shkuro
• Fix typo in comments (#222) -- meteorlxy
• Improve documentation for log.Object() to emphasize the requirement to pass immutable arguments (#219) -- 疯狂的小企鹅
• [mock] Return ErrInvalidSpanContext if span context is not MockSpanContext (#216) -- Milad Irannejad