Version 1.2.1

• Fix data race on headers when making concurrent calls using the same context. (#505)

Version 1.2.0

• Adds support for routing key transport headers (rk). (#496)

v1.1.0

• Integrate OpenTracing for distributed tracing and context propagation.
  As long as a Zipkin-style tracing is configured, TChannel frames still
  send tracing information, and CurrentSpan(ctx) works as before.
  All tracer configuration must be handled through OpenTracing.
  (#426)
• Improve error messages when using the json package and the host:port
  fails to connect. (#475)
• mockhyperbahn now using inbuilt TChannel relaying to implement in-process
  forwarding. (#472)
• Drop go1.4 support and add support for go1.7.
• Pass thrift.Context to the thrift.Server's response callback (#465)

v1.0.9

Changes since v1.0.8

• Expose meta endpoints on the "tchannel" service name. (#459)
• Add Go version and tchannel-go library version to introspection. (#457)
• Better handling of peers where dialed host:port doesn't match the remote
  connection's reported host:port. (#452)
• Expose the number of connections on a channel. (#451)

v1.0.8

Changes since 1.0.6

• Add CallOptions() to IncomingCall which can be used as the call option
  when making outbound calls to proxy all transport headers.
• Add tracing information to all error frames generated by the library.
• Add GetHandlers for getting all registered methods on a subchannel.
• Fix peer score not being calculated when adding a new outbound connections
• Expose the peer information for outbound calls.
• Support a separate connection timeout from the context timeout, useful for
  streaming calls where the stream timeout may be much longer than the
  connection timeout.

v1.0.6

Changes since 1.0.4

• Fix trace span encoding fields in the wrong order

v1.0.5

Changes since 1.0.4

• Use context.Context storage for headers so thrift.Context and
  tchannel.ContextWithHeaders can be passed to functions that use
  context.Context, and have them retain headers.
• thrift.Server allows a custom factory to be used for thrift.Context
  creation based on the underlying context.Context and headers map.
• Store goroutine stack traces on channel creation that can be accessed
  via introspection.

v1.0.4

Changes since v1.0.3

• Improve handling of network failures during pending calls. Previously, calls
  would timeout, but now they fail as soon as the network failure is detected.
• Remove ephemeral peers with closed outbound connections.
• #233: Ensure errors returned from Thrift handlers have a non-nil value.
• #228: Add registered methods to the introspection output.
• Add ability to set a global handler for a SubChannel.

v1.0.3

Changes since 1.0.3

• Improved performance when writing Thrift structs
• Make closing message exchanges less disruptive, changes a panic due to
  closing a channel twice to an error log.
• Introspection now includes information about all channels created
  in the current process.

v1.0.2

Changes since 1.0.1

• Extend the ContextBuilder API to support setting the transport-level routing delegate header.
• Set a timeout when making new outbound connections to avoid hanging.
• Fix for #196: Make the initial Hyperbahn advertise more tolerant of transient timeouts.
• Assorted logging and test improvements.