Breaking Datastore change: datastore package contents moved to top level newrelic package. datastore.MySQL has become newrelic.DatastoreMySQL.
Breaking Attributes change: attributes package contents moved to top level newrelic package. attributes.ResponseCode has become newrelic.AttributeResponseCode. Some attribute name constants have been shortened.
Added "runtime.NumCPU" to the environment tab. Thanks sergeylanzman for the contribution.
Prefixed the environment tab values "Compiler", "GOARCH", "GOOS", and "Version" with "runtime."