v1.0.0

prepare for releasing 1.0.0 and 0.24.0 (#213)

* prepare for releasing 1.0.0 and 0.24.0

v0.22.0 and v1.0.0-RC2

Breaking changes

• Simplify exporter creation functions (#193, #194).

Before	After
tp, shutdown, err := exporter.InstallNewPipeline( exporterOpts, sdkOpts..., ) // handle error defer shutdown()	exporter, err := exporter.New(exporterOpts) // handle error tp := sdktrace.NewTracerProvider( sdktrace.WithBatcher(exporter), sdkOpts..., ) defer tp.Shutdown(context.Background()) otel.SetTracerProvider(tp)
tp, shutdown, err := exporter.NewExportPipeline( exporterOpts, sdkOpts..., ) // handle error defer shutdown()	exporter, err := exporter.New(exporterOpts) // handle error tp := sdktrace.NewTracerProvider( sdktrace.WithBatcher(exporter), sdkOpts..., ) defer tp.Shutdown(context.Background())

• Remove ExportCustomSpans and associated interface which were introduced in -RC1 (#187).
• Un-export string constants from OTel semantic conventions (#192).
• Remove DisplayNameFormatter and DefaultTraceAttributes from trace exporter options (#188, #191)
• Use OTel ErrorHandler for handling errors (#196).

Enhancements

• Update to OTel-go v1.0.0-RC2 + v0.22.0 (#199) and other miscellaneous dependencies (#197).
• Remove unused Location field from trace options (#195).

v0.21.0 and v1.0.0-RC1

Breaking changes

• Trace exporter now expects instances of the ReadOnlySpan interface rather than the SpanContext struct.

New features

Implemented in #173, thanks to contributor @0xc0d!

• Trace exporter is compatible with v1.0.0-RC1 of opentelemetry-go stable components
• Metric exporter is compatible with v0.21.0 of opentelemetry-go unstable components

Additional details on the mix of version numbers

Enhancements

• Map OTel span kind to Cloud Trace (#179, #180)
• Map OTel span links to Cloud Trace (#176, #178)
• Add end-to-end tests (#177)

v0.20.1

Bug fixes

• Don't export empty time series (#171, thanks @ryanlaycock)

v0.20.0

New features

• Compatible with version v0.20.0 of opentelemetry-go

Enhancements

• Add ability to set default trace attributes (#160, h/t to contributor @filip-ph-johansson)
• Improve documentation and examples (#161, #162)
• Remove unused code (#163)

v0.19.0

New features

• When exported to Google Cloud Trace, spans are named <name> instead of Span.<kind>.<name>, which aligns with exporters in other languages (#109, #151, #155)
• Compatible with version 0.19.0 of opentelemetry-go (#158)

v0.18.0

New features

• Compatible with version v0.18.0 of opentelemetry-go

v0.17.0

Breaking changes

• Remove exporter-side bundling of traces and remove unused configuration parameters (#149, fixes #100). To recover the performance benefits of bundling, please use a BatchSpanProcessor.

New features

• Set User-Agent header correctly on requests to GCP APIs (#148)
• Compatible with v0.17.0 of opentelemetry-go (#144, #145)

Bugfixes

• Map OTel span status codes correctly to Google Cloud Trace API status codes (#150, fixes #143)

Miscellaneous

• Better verification of example code stored outside this repo (#140)
• Better verification of copyright headers (#139)

v0.16.0

Update OTel dependencies to v0.16.0
Map OT service.name to Service in SD UI
Stagger interval end time to comply with GCP API requirements

Release v0.13.0

46340c4 Fix to use the correct version to build user agent (#105)
1b6dd8a Better bundle config and error management (#111)
402639d check for the existence of metric descriptors before creating (#108)
ec19c7e Update to OpenTelemetry v0.13. (#106)
82ab7c7 Use %s to print duration (#104)