Project Status

OpenTelemetry implementations are currently in pre-release status. This page tracks the overall release milestones as we move towards full releases for each language SIG. You can find more details about the milestones at this link


Our current goal is to provide a generally available, production quality release by the second half of 2020. Currently, we are in the alpha stage. What follows is a brief explanation of what we expect to be available, when.


This release is expected to include a functional tracing implementation. While the API may change, you should be able to use these releases to begin exploring and understanding the API and the SDK, and the changes that have been made from OpenTracing/OpenCensus. This release also includes support for distributed context using the W3C TraceContext specification.


This release is expected to contain a functional metrics implementation. Again, you may see changes to the API and the SDK after this point, but it’s anticipated that these releases will allow you to explore and understand the changes that have been made from OpenCensus. In addition, this release is anticpated to include improvements to OpenTelemetry Context (such as handling baggage), various semantic conventions around trace and metric metadata, and a finalized OpenTelemetry protocol.


This release is expected to contain further improvements to the tracing and metrics API and SDK in response to feedback gathered during the prior alpha releases. Additionally, we expect that the OpenTelemetry protocol will be fully implemented and languages will include an exporter to the OpenTelemetry Collector. At this phase, we anticipate all APIs will be unlikely to change.

Beta, RC, and Release

We anticipate that once the alpha phase is complete, we’ll enter into a period of final stabilization work around the API, SDK, and other components. This includes benchmarking, profiling, interoperability testing suites, and other work to ensure that the final release is performant and of a high quality. This work is anticipated to complete by the second half of 2020.

Current SIG Progress

Progress ChartProjectv0.1v0.2v0.3v0.4betarcv1.0.NETGoJavaScriptJavaPythonPHPRubyErlangCollectorClick a progress bar in the above chart to go to that SIGs repository.

Current SIG Release


Test release

This is a test release to verify nuget package versioning with tags  



Incorporates #428 to fix regression #426 in the Prometheus default batching behavior.


v0.3.2 Release

#### :rocket: (Enhancement)
* `opentelemetry-plugin-http`, `opentelemetry-plugin-https`
  * [#643]( feat(plugin-http): add/modify attributes
  * [#651]( chore: add version script to all packages
* `opentelemetry-plugin-mongodb`
  * [#652]( feat: port mongodb-core plugin to mongodb
* `opentelemetry-metrics`
  * [#634]( Rename metric handle to bound instrument
* `opentelemetry-test-utils`
  * [#644]( feat: test-utils

#### :sparkles: (Feature)
* `opentelemetry-plugin-ioredis`
  * [#558]( feat(plugin): add ioredis plugin

#### :books: (Refine Doc)
* `opentelemetry-node`, `opentelemetry-plugin-xml-http-request`
  * [#646]( chore: update default plugins list and fix npm badge
* `opentelemetry-plugin-document-load`, `opentelemetry-plugin-mysql`, `opentelemetry-plugin-redis`, `opentelemetry-plugin-xml-http-request`, `opentelemetry-shim-opentracing`
  * [#647]( chore: update plugin readme with example links
* `opentelemetry-plugin-postgres`
  * [#539]( chore(docs:postgres): add usage instructions
* Other
  * [#645]( chore(plugin-pg): move dev dependencies out of `dependencies` in package.json


No release information available from GitHub.


opentelemetry v0.3.0

Alpha V3 release.

## `opentelemetry-api`

- Multiple tracing API changes
- Multiple metrics API changes
- Remove option to create unstarted spans from API ([#290](

## `opentelemetry-sdk`

- Multiple tracing SDK changes
- Multiple metrics SDK changes
- Add metrics exporters ([#192](
- Multiple bugfixes and improvements

## `opentelemetry-ext-flask`

- Initial release

## `opentelemetry-ext-opentracing-shim`

- Implement extract and inject support for HTTP_HEADERS and TEXT_MAP formats ([#256](

## `opentelemetry-ext-pymongo`

- Initial release

## `opentelemetry-ext-wsgi`

- Support new semantic conventions ([#299](
- Updates for core library changes


No release information available from GitHub.


No release information available from GitHub.


OpenTelemetry API v0.2.0

* Tracer API behaviour
* Span API behaviour
* Context API behaviour
* Baggage and Correlations Context implemented on top of Context API
* Propagation API


Alpha v0.2.3

Alpha v0.2.2 of OpenTelemetry Collector.

21a70d6 Add a memory limiter processor (#498)
9778b16 Refactor Jaeger Receiver config (#490)
ec4ad0c Remove workers from OpenCensus receiver implementation (#497)
4e01fa3 Update k8s config to use opentelemetry docker image and configuration (#459)