v1.0.0-rc4 release: Release Candidate of core packages:

• opentelemetry-api
• opentelemetry-sdk

and exporter packages:

• opentelemetry-exporter-otlp ( gRPC + HTTP/JSON )
• opentelemetry-exporter-etw
• opentelemetry-exporter-zipkin
• opentelemetry-exporter-jaeger ( thrift + UDP/HTTP )

Changelog:

• [EXPORTER] BREAKING CHANGE Fix default HTTP port for OTLP HTTP Exporter (#939)
• [API] Fix timeout calculation for Tracer::Flush() and Tracer::Close() (#937)
• [API] Fix for Stack::Resize that new_capacity is not assigned to capacity_ (#934)
• [SDK] Fix race condition in circular buffer simulation test (#931)
• [EXPORTER] Fix error logging in Jaeger Exporter (#930)
• [BUILD] Use latest grpc version (v1.39.0) for cmake build of otlp exporter (#927)
• [EXPORTER] Add Jaeger Thrift HTTP exporter (#926)
• [SDK] Move env-var read logic to common dir, and optional reading of env-var (#924)
• [EXPORTER] Remove recordable header from CMake install rules for exporters (#923)
• [EXPORTER] BREAKING CHANGE Rename Recordable to JaegerRecordable in Jaeger exporter (#919)
• [EXPORTER] BREAKING CHANGE Rename Jaeger exporter target (#918)
• [EXPORTER] Add Zipkin exporter example (#917)
• [EXPORTER] Bazel build for Zipkin exorter (#916)
• [BUILD] Allow to use local GSL (#915)
• [DOCS] Document vcpkg toolchain configuration (#913)
• [SDK] Fix for resource deletion after tracer provider shutdown (#911)
• [BUILD] Add bazel build for grpc example (#910)
• [EXPORTER] Add resource and instrumentation library support for OStreamSpanExporter (#906)
• [API] Adding semantic-convention attributes for trace (#868)