diff --git a/README.md b/README.md
index b7cda2ddb06..17641dd5707 100644
--- a/README.md
+++ b/README.md
@@ -171,6 +171,34 @@ includes:
 - Flask Integration
 - PyMongo Integration
 
+The v0.4 alpha release includes:
+
+- Metrics MinMaxSumCount Aggregator
+- Context API 
+- Full Metrics SDK Pipeline 
+- Metrics STDOUT Exporter
+- Dbapi2 Integration
+- MySQL Integration
+- Psycopg2 Integration
+- Zipkin Exporter
+- Prometheus Metrics Exporter
+- New Examples and Improvements to Existing Examples
+
+Thank you to the following individuals for contributing to this release:
+
+* Alex Boten
+* Chris Kleinknecht
+* Christian Neumüller
+* Daniel González
+* Diego Hurtado
+* Golovin Pavel
+* Hector Hernandez
+* Jake Malachowski
+* Joshua H Lang
+* Leighton Chen
+* Mauricio Vásquez
+* Yusuke Tsutsumi
+
 See the [project
 milestones](https://github.com/open-telemetry/opentelemetry-python/milestones)
 for details on upcoming releases. The dates and features described here are
@@ -178,13 +206,11 @@ estimates, and subject to change.
 
 Future releases targets include:
 
-| Component                           | Version    | Target Date       |
-| ----------------------------------- | ---------- | ----------------- |
-| Zipkin Trace Exporter               | Alpha v0.4 | February 21 2020  |
-| W3C Correlation Context Propagation | Alpha v0.4 | February 21 2020  |
-| Support for Tags/Baggage            | Alpha v0.4 | February 21 2020  |
-| Metrics Aggregation                 | Alpha v0.4 | February 21 2020  |
-| gRPC Integrations                   | Alpha v0.4 | February 21 2020  |
-| Prometheus Metrics Exporter         | Alpha v0.4 | February 21 2020  |
-| OpenCensus Bridge                   | Alpha v0.4 | February 21 2020  |
-| Metrics SDK (Complete)              | Alpha v0.4 | February 21 2020  |
+| Component                           | Version    | Target Date  |
+| ----------------------------------- | ---------- | ------------ |
+| W3C Correlation Context Propagation | Beta v1    | March 16 2020|
+| Support for Tags/Baggage            | Beta v1    | March 16 2020|
+| gRPC Integrations                   | Beta v1    | March 16 2020|
+| OpenTelemetry Collector Exporter    | Beta v1    | March 16 2020|
+| OpenCensus Bridge                   | Beta v1    | March 16 2020|
+| Metrics SDK (Complete)              | Beta v1    | March 16 2020|
diff --git a/ext/opentelemetry-ext-dbapi/CHANGELOG.md b/ext/opentelemetry-ext-dbapi/CHANGELOG.md
new file mode 100644
index 00000000000..f32ad5bd4c2
--- /dev/null
+++ b/ext/opentelemetry-ext-dbapi/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Changelog
+
+## Unreleased
+
+## 0.4a0
+
+Released 2020-02-21
+
+- Initial release
\ No newline at end of file
diff --git a/ext/opentelemetry-ext-flask/CHANGELOG.md b/ext/opentelemetry-ext-flask/CHANGELOG.md
index d4df57eefc6..d3bf663073b 100644
--- a/ext/opentelemetry-ext-flask/CHANGELOG.md
+++ b/ext/opentelemetry-ext-flask/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ## Unreleased
 
+## 0.4a0
+
+- Use string keys for WSGI environ values
+  ([#366](https://github.com/open-telemetry/opentelemetry-python/pull/366))
+
+
 ## 0.3a0
 
 Released 2019-12-11
diff --git a/ext/opentelemetry-ext-jaeger/CHANGELOG.md b/ext/opentelemetry-ext-jaeger/CHANGELOG.md
index 6cdbefa823a..2b360199c02 100644
--- a/ext/opentelemetry-ext-jaeger/CHANGELOG.md
+++ b/ext/opentelemetry-ext-jaeger/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 0.4a0
+
+Released 2020-02-21
+
 - Export span status ([#367](https://github.com/open-telemetry/opentelemetry-python/pull/367))
 - Export span kind ([#387](https://github.com/open-telemetry/opentelemetry-python/pull/387))
 
diff --git a/ext/opentelemetry-ext-mysql/CHANGELOG.md b/ext/opentelemetry-ext-mysql/CHANGELOG.md
new file mode 100644
index 00000000000..f32ad5bd4c2
--- /dev/null
+++ b/ext/opentelemetry-ext-mysql/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Changelog
+
+## Unreleased
+
+## 0.4a0
+
+Released 2020-02-21
+
+- Initial release
\ No newline at end of file
diff --git a/ext/opentelemetry-ext-prometheus/CHANGELOG.md b/ext/opentelemetry-ext-prometheus/CHANGELOG.md
index 617d979ab29..91730a080a1 100644
--- a/ext/opentelemetry-ext-prometheus/CHANGELOG.md
+++ b/ext/opentelemetry-ext-prometheus/CHANGELOG.md
@@ -2,3 +2,9 @@
 
 ## Unreleased
 
+## 0.4a0
+
+Released 2020-02-21
+
+- Initial release
+
diff --git a/ext/opentelemetry-ext-psycopg2/CHANGELOG.md b/ext/opentelemetry-ext-psycopg2/CHANGELOG.md
new file mode 100644
index 00000000000..f32ad5bd4c2
--- /dev/null
+++ b/ext/opentelemetry-ext-psycopg2/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Changelog
+
+## Unreleased
+
+## 0.4a0
+
+Released 2020-02-21
+
+- Initial release
\ No newline at end of file
diff --git a/ext/opentelemetry-ext-pymongo/CHANGELOG.md b/ext/opentelemetry-ext-pymongo/CHANGELOG.md
index d4df57eefc6..c13f1be4a25 100644
--- a/ext/opentelemetry-ext-pymongo/CHANGELOG.md
+++ b/ext/opentelemetry-ext-pymongo/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 ## Unreleased
 
+## 0.4a0
+
+Released 2020-02-21
+
+- Updating network connection attribute names
+  ([#350](https://github.com/open-telemetry/opentelemetry-python/pull/350))
+
+
 ## 0.3a0
 
 Released 2019-12-11
diff --git a/ext/opentelemetry-ext-wsgi/CHANGELOG.md b/ext/opentelemetry-ext-wsgi/CHANGELOG.md
index 62d8a5baf0f..a82a5de7c8c 100644
--- a/ext/opentelemetry-ext-wsgi/CHANGELOG.md
+++ b/ext/opentelemetry-ext-wsgi/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 ## Unreleased
 
+## 0.4a0
+
+Released 2020-02-21
+
+- Updating network connection attribute names
+  ([#350](https://github.com/open-telemetry/opentelemetry-python/pull/350))
+
 ## 0.3a0
 
 Released 2019-12-11
diff --git a/ext/opentelemetry-ext-zipkin/CHANGELOG.md b/ext/opentelemetry-ext-zipkin/CHANGELOG.md
index 617d979ab29..f32ad5bd4c2 100644
--- a/ext/opentelemetry-ext-zipkin/CHANGELOG.md
+++ b/ext/opentelemetry-ext-zipkin/CHANGELOG.md
@@ -2,3 +2,8 @@
 
 ## Unreleased
 
+## 0.4a0
+
+Released 2020-02-21
+
+- Initial release
\ No newline at end of file
diff --git a/opentelemetry-api/CHANGELOG.md b/opentelemetry-api/CHANGELOG.md
index dc5ccc3ace2..9864fc67d3d 100644
--- a/opentelemetry-api/CHANGELOG.md
+++ b/opentelemetry-api/CHANGELOG.md
@@ -2,6 +2,30 @@
 
 ## Unreleased
 
+## 0.4a0
+
+Released 2020-02-21
+
+- Separate Default classes from interface descriptions
+  ([#311](https://github.com/open-telemetry/opentelemetry-python/pull/311))
+- Added named Tracers
+  ([#301](https://github.com/open-telemetry/opentelemetry-python/pull/301))
+- Add int and valid sequenced to AttributeValue type
+  ([#368](https://github.com/open-telemetry/opentelemetry-python/pull/368))
+- Add ABC for Metric
+  ([#391](https://github.com/open-telemetry/opentelemetry-python/pull/391))
+- Metric classes required for export pipeline
+  ([#341](https://github.com/open-telemetry/opentelemetry-python/pull/341))
+- Adding Context API Implementation
+  ([#395](https://github.com/open-telemetry/opentelemetry-python/pull/395))
+- Remove monotonic and absolute metric instruments
+  ([#410](https://github.com/open-telemetry/opentelemetry-python/pull/410))
+- Adding trace.get_tracer function
+  ([#430](https://github.com/open-telemetry/opentelemetry-python/pull/430))
+
+
+
+
 ## 0.3a0
 
 Released 2019-12-11
diff --git a/opentelemetry-sdk/CHANGELOG.md b/opentelemetry-sdk/CHANGELOG.md
index d981045858e..54502d7eae7 100644
--- a/opentelemetry-sdk/CHANGELOG.md
+++ b/opentelemetry-sdk/CHANGELOG.md
@@ -2,6 +2,43 @@
 
 ## Unreleased
 
+## 0.4a0 
+
+Released 2020-02-21
+
+- Added named Tracers
+  ([#301](https://github.com/open-telemetry/opentelemetry-python/pull/301))
+- Set status for ended spans 
+  ([#297](https://github.com/open-telemetry/opentelemetry-python/pull/297) and
+  [#358](https://github.com/open-telemetry/opentelemetry-python/pull/358))
+- Use module loggers
+  ([#351](https://github.com/open-telemetry/opentelemetry-python/pull/351))
+- Protect start_time and end_time from being set manually by the user
+  ([#363](https://github.com/open-telemetry/opentelemetry-python/pull/363))
+- Add runtime validation for set_attribute
+  ([#348](https://github.com/open-telemetry/opentelemetry-python/pull/348))
+- Add support for B3 ParentSpanID
+  ([#286](https://github.com/open-telemetry/opentelemetry-python/pull/286))
+- Set status in start_as_current_span
+  ([#377](https://github.com/open-telemetry/opentelemetry-python/pull/377))
+- Implement force_flush for span processors
+  ([#389](https://github.com/open-telemetry/opentelemetry-python/pull/389))
+- Metrics export pipeline, and stdout exporter
+  ([#341](https://github.com/open-telemetry/opentelemetry-python/pull/389))
+- Set sampled flag on sampling trace
+  ([#407](https://github.com/open-telemetry/opentelemetry-python/pull/407))
+- Add io and formatter options to console exporter
+  ([#412](https://github.com/open-telemetry/opentelemetry-python/pull/412))
+- Clean up ProbabilitySample for 64 bit trace IDs
+  ([#238](https://github.com/open-telemetry/opentelemetry-python/pull/238))
+- Adding Context API Implementation
+  ([#395](https://github.com/open-telemetry/opentelemetry-python/pull/395))
+- Remove monotonic and absolute metric instruments
+  ([#410](https://github.com/open-telemetry/opentelemetry-python/pull/410))
+- Implement MinMaxSumCount aggregator
+  ([#422](https://github.com/open-telemetry/opentelemetry-python/pull/422))
+
+
 ## 0.3a0
 
 Released 2019-12-11