0.6.1

New features

• contrib: add support for gRPC v1.2 (#134)
• tracer: increase span buffer from 10k to 100k (#136)
• tracer: dual sampling support, make sure priorities -1 and 2 are handled (#137)
• opentracing: set Span error when adding error tags (#154)
• opentracing: allow customizing propagator headers (#155, docs)

Bugfixes

• tracer: fix encoder race conditions by removing the EncoderPool (#116)
• tracer: SetTag convert value to string instead of expected a string (#135 -- thanks @chibimi)
• opentracing: use base10 for traceID and parentID (#140 -- thanks @hamiltop)
• opentracing: sample propagated spans after setting traceID (#143 -- @shrayolacrayon)
• opentracing: set tracer in span creation (#149, #150)

Read the full changeset.