diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5387851e..af89b7e1a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased](https://github.com/open-telemetry/opentelemetry-python-contrib/compare/v0.200...HEAD)
+## [Unreleased](https://github.com/open-telemetry/opentelemetry-python/compare/v1.2.0-0.21b0...HEAD)
+
+## [1.2.0-0.21b0](https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.2.0-0.21b0) - 2021-05-11
+
+
 
 ### Changed
 
diff --git a/_template/setup.cfg b/_template/setup.cfg
index d9536870c..a05ddfb89 100644
--- a/_template/setup.cfg
+++ b/_template/setup.cfg
@@ -45,7 +45,7 @@ package_dir=
 packages=find_namespace:
 
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
 
 [options.extras_require]
 test =
diff --git a/_template/version.py b/_template/version.py
index 2b0817526..df84e5962 100644
--- a/_template/version.py
+++ b/_template/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/eachdist.ini b/eachdist.ini
index 65e6fc501..54b5ebcd7 100644
--- a/eachdist.ini
+++ b/eachdist.ini
@@ -16,6 +16,28 @@ sortfirst=
     exporter/*
     ext/*
 
+[stable]
+version=1.2.0
+
+packages=
+    opentelemetry-sdk
+    opentelemetry-proto
+    propagator/opentelemetry-propagator-jaeger
+    propagator/opentelemetry-propagator-b3
+    exporter/opentelemetry-exporter-zipkin-proto-http
+    exporter/opentelemetry-exporter-zipkin-json
+    exporter/opentelemetry-exporter-zipkin
+    exporter/opentelemetry-exporter-otlp-proto-grpc
+    exporter/opentelemetry-exporter-otlp
+    exporter/opentelemetry-exporter-jaeger-thrift
+    exporter/opentelemetry-exporter-jaeger-proto-grpc
+    exporter/opentelemetry-exporter-jaeger
+    opentelemetry-api
+
+[prerelease]
+version=0.21b0
+
+
 [lintroots]
 extraroots=examples/*,scripts/
 subglob=*.py,tests/,test/,src/*,examples/*
diff --git a/exporter/opentelemetry-exporter-datadog/setup.cfg b/exporter/opentelemetry-exporter-datadog/setup.cfg
index ee35b555c..21969e535 100644
--- a/exporter/opentelemetry-exporter-datadog/setup.cfg
+++ b/exporter/opentelemetry-exporter-datadog/setup.cfg
@@ -39,8 +39,8 @@ package_dir=
 packages=find_namespace:
 install_requires =
     ddtrace>=0.34.0,<0.47.0
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-sdk == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-sdk == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
 
 [options.packages.find]
diff --git a/exporter/opentelemetry-exporter-datadog/src/opentelemetry/exporter/datadog/version.py b/exporter/opentelemetry-exporter-datadog/src/opentelemetry/exporter/datadog/version.py
index 2b0817526..df84e5962 100644
--- a/exporter/opentelemetry-exporter-datadog/src/opentelemetry/exporter/datadog/version.py
+++ b/exporter/opentelemetry-exporter-datadog/src/opentelemetry/exporter/datadog/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-aiohttp-client/setup.cfg b/instrumentation/opentelemetry-instrumentation-aiohttp-client/setup.cfg
index 809750e06..7d09026ef 100644
--- a/instrumentation/opentelemetry-instrumentation-aiohttp-client/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-aiohttp-client/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     aiohttp ~= 3.0
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-aiohttp-client/src/opentelemetry/instrumentation/aiohttp_client/version.py b/instrumentation/opentelemetry-instrumentation-aiohttp-client/src/opentelemetry/instrumentation/aiohttp_client/version.py
index 0b40082f6..6474e480e 100644
--- a/instrumentation/opentelemetry-instrumentation-aiohttp-client/src/opentelemetry/instrumentation/aiohttp_client/version.py
+++ b/instrumentation/opentelemetry-instrumentation-aiohttp-client/src/opentelemetry/instrumentation/aiohttp_client/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-aiopg/setup.cfg b/instrumentation/opentelemetry-instrumentation-aiopg/setup.cfg
index 806b0b388..16e4a4625 100644
--- a/instrumentation/opentelemetry-instrumentation-aiopg/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-aiopg/setup.cfg
@@ -38,10 +38,10 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation-dbapi == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation-dbapi == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
     aiopg >= 0.13.0
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-aiopg/src/opentelemetry/instrumentation/aiopg/version.py b/instrumentation/opentelemetry-instrumentation-aiopg/src/opentelemetry/instrumentation/aiopg/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-aiopg/src/opentelemetry/instrumentation/aiopg/version.py
+++ b/instrumentation/opentelemetry-instrumentation-aiopg/src/opentelemetry/instrumentation/aiopg/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-asgi/setup.cfg b/instrumentation/opentelemetry-instrumentation-asgi/setup.cfg
index a112d2e22..5e98ef8c6 100644
--- a/instrumentation/opentelemetry-instrumentation-asgi/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-asgi/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     asgiref ~= 3.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-asgi/src/opentelemetry/instrumentation/asgi/version.py b/instrumentation/opentelemetry-instrumentation-asgi/src/opentelemetry/instrumentation/asgi/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-asgi/src/opentelemetry/instrumentation/asgi/version.py
+++ b/instrumentation/opentelemetry-instrumentation-asgi/src/opentelemetry/instrumentation/asgi/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-asyncpg/setup.cfg b/instrumentation/opentelemetry-instrumentation-asyncpg/setup.cfg
index e0326f90f..418965a80 100644
--- a/instrumentation/opentelemetry-instrumentation-asyncpg/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-asyncpg/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     asyncpg >= 0.12.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-asyncpg/src/opentelemetry/instrumentation/asyncpg/version.py b/instrumentation/opentelemetry-instrumentation-asyncpg/src/opentelemetry/instrumentation/asyncpg/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-asyncpg/src/opentelemetry/instrumentation/asyncpg/version.py
+++ b/instrumentation/opentelemetry-instrumentation-asyncpg/src/opentelemetry/instrumentation/asyncpg/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-boto/setup.cfg b/instrumentation/opentelemetry-instrumentation-boto/setup.cfg
index 5a3a7f0b7..3418d1dc1 100644
--- a/instrumentation/opentelemetry-instrumentation-boto/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-boto/setup.cfg
@@ -39,10 +39,10 @@ package_dir=
 packages=find_namespace:
 install_requires =
     boto ~= 2.0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-instrumentation-botocore == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-instrumentation-botocore == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-boto/src/opentelemetry/instrumentation/boto/version.py b/instrumentation/opentelemetry-instrumentation-boto/src/opentelemetry/instrumentation/boto/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-boto/src/opentelemetry/instrumentation/boto/version.py
+++ b/instrumentation/opentelemetry-instrumentation-boto/src/opentelemetry/instrumentation/boto/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-botocore/setup.cfg b/instrumentation/opentelemetry-instrumentation-botocore/setup.cfg
index 45cb5fa4d..158ca3dba 100644
--- a/instrumentation/opentelemetry-instrumentation-botocore/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-botocore/setup.cfg
@@ -39,9 +39,9 @@ package_dir=
 packages=find_namespace:
 install_requires =
     botocore ~= 1.0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/version.py b/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/version.py
+++ b/instrumentation/opentelemetry-instrumentation-botocore/src/opentelemetry/instrumentation/botocore/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-celery/setup.cfg b/instrumentation/opentelemetry-instrumentation-celery/setup.cfg
index f22f07ada..03296fe9c 100644
--- a/instrumentation/opentelemetry-instrumentation-celery/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-celery/setup.cfg
@@ -39,9 +39,9 @@ package_dir=
 packages=find_namespace:
 install_requires =
     celery >= 4.0, < 6.0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-celery/src/opentelemetry/instrumentation/celery/version.py b/instrumentation/opentelemetry-instrumentation-celery/src/opentelemetry/instrumentation/celery/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-celery/src/opentelemetry/instrumentation/celery/version.py
+++ b/instrumentation/opentelemetry-instrumentation-celery/src/opentelemetry/instrumentation/celery/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-dbapi/setup.cfg b/instrumentation/opentelemetry-instrumentation-dbapi/setup.cfg
index ee3e8bd27..33212a203 100644
--- a/instrumentation/opentelemetry-instrumentation-dbapi/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-dbapi/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     wrapt >= 1.0.0, < 2.0.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-dbapi/src/opentelemetry/instrumentation/dbapi/version.py b/instrumentation/opentelemetry-instrumentation-dbapi/src/opentelemetry/instrumentation/dbapi/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-dbapi/src/opentelemetry/instrumentation/dbapi/version.py
+++ b/instrumentation/opentelemetry-instrumentation-dbapi/src/opentelemetry/instrumentation/dbapi/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-django/setup.cfg b/instrumentation/opentelemetry-instrumentation-django/setup.cfg
index ac7eca089..81818cd17 100644
--- a/instrumentation/opentelemetry-instrumentation-django/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-django/setup.cfg
@@ -39,10 +39,10 @@ package_dir=
 packages=find_namespace:
 install_requires =
     django >= 1.10
-    opentelemetry-util-http == 0.21.dev0
-    opentelemetry-instrumentation-wsgi == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-util-http == 0.21b0
+    opentelemetry-instrumentation-wsgi == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py
+++ b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-elasticsearch/setup.cfg b/instrumentation/opentelemetry-instrumentation-elasticsearch/setup.cfg
index e8564d69e..81e75a68f 100644
--- a/instrumentation/opentelemetry-instrumentation-elasticsearch/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-elasticsearch/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     wrapt >= 1.0.0, < 2.0.0
     elasticsearch >= 2.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-elasticsearch/src/opentelemetry/instrumentation/elasticsearch/version.py b/instrumentation/opentelemetry-instrumentation-elasticsearch/src/opentelemetry/instrumentation/elasticsearch/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-elasticsearch/src/opentelemetry/instrumentation/elasticsearch/version.py
+++ b/instrumentation/opentelemetry-instrumentation-elasticsearch/src/opentelemetry/instrumentation/elasticsearch/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-falcon/setup.cfg b/instrumentation/opentelemetry-instrumentation-falcon/setup.cfg
index af88e821d..65f953890 100644
--- a/instrumentation/opentelemetry-instrumentation-falcon/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-falcon/setup.cfg
@@ -40,10 +40,10 @@ package_dir=
 packages=find_namespace:
 install_requires =
     falcon ~= 2.0
-    opentelemetry-instrumentation-wsgi == 0.21.dev0
-    opentelemetry-util-http == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-instrumentation-wsgi == 0.21b0
+    opentelemetry-util-http == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/version.py b/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/version.py
+++ b/instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-fastapi/setup.cfg b/instrumentation/opentelemetry-instrumentation-fastapi/setup.cfg
index 7f3ab92c0..c09827b28 100644
--- a/instrumentation/opentelemetry-instrumentation-fastapi/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-fastapi/setup.cfg
@@ -38,11 +38,11 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-instrumentation-asgi == 0.21.dev0
-    opentelemetry-util-http == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-instrumentation-asgi == 0.21b0
+    opentelemetry-util-http == 0.21b0
 
 [options.entry_points]
 opentelemetry_instrumentor =
diff --git a/instrumentation/opentelemetry-instrumentation-fastapi/src/opentelemetry/instrumentation/fastapi/version.py b/instrumentation/opentelemetry-instrumentation-fastapi/src/opentelemetry/instrumentation/fastapi/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-fastapi/src/opentelemetry/instrumentation/fastapi/version.py
+++ b/instrumentation/opentelemetry-instrumentation-fastapi/src/opentelemetry/instrumentation/fastapi/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-flask/setup.cfg b/instrumentation/opentelemetry-instrumentation-flask/setup.cfg
index 6b6fe2bd6..bc93c3e82 100644
--- a/instrumentation/opentelemetry-instrumentation-flask/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-flask/setup.cfg
@@ -39,10 +39,10 @@ package_dir=
 packages=find_namespace:
 install_requires =
     flask ~= 1.0
-    opentelemetry-util-http == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-instrumentation-wsgi == 0.21.dev0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-util-http == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-instrumentation-wsgi == 0.21b0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/version.py b/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/version.py
+++ b/instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-grpc/setup.cfg b/instrumentation/opentelemetry-instrumentation-grpc/setup.cfg
index 3bfdf614d..3bae5bca8 100644
--- a/instrumentation/opentelemetry-instrumentation-grpc/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-grpc/setup.cfg
@@ -38,17 +38,17 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-sdk == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-sdk == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     grpcio ~= 1.27
     wrapt >= 1.0.0, < 2.0.0
 
 [options.extras_require]
 test =
     opentelemetry-test == 0.21.dev0
-    opentelemetry-sdk == 1.2.0.dev0
+    opentelemetry-sdk == 1.2.0
     protobuf >= 3.13.0
 
 [options.packages.find]
diff --git a/instrumentation/opentelemetry-instrumentation-grpc/src/opentelemetry/instrumentation/grpc/version.py b/instrumentation/opentelemetry-instrumentation-grpc/src/opentelemetry/instrumentation/grpc/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-grpc/src/opentelemetry/instrumentation/grpc/version.py
+++ b/instrumentation/opentelemetry-instrumentation-grpc/src/opentelemetry/instrumentation/grpc/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-jinja2/setup.cfg b/instrumentation/opentelemetry-instrumentation-jinja2/setup.cfg
index 4147b5d07..c9fea4b6c 100644
--- a/instrumentation/opentelemetry-instrumentation-jinja2/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-jinja2/setup.cfg
@@ -37,8 +37,8 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation == 0.21b0
     jinja2~=2.7
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-jinja2/src/opentelemetry/instrumentation/jinja2/version.py b/instrumentation/opentelemetry-instrumentation-jinja2/src/opentelemetry/instrumentation/jinja2/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-jinja2/src/opentelemetry/instrumentation/jinja2/version.py
+++ b/instrumentation/opentelemetry-instrumentation-jinja2/src/opentelemetry/instrumentation/jinja2/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-logging/setup.cfg b/instrumentation/opentelemetry-instrumentation-logging/setup.cfg
index 02d5ff7e0..764cd992f 100644
--- a/instrumentation/opentelemetry-instrumentation-logging/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-logging/setup.cfg
@@ -37,8 +37,8 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-logging/src/opentelemetry/instrumentation/logging/version.py b/instrumentation/opentelemetry-instrumentation-logging/src/opentelemetry/instrumentation/logging/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-logging/src/opentelemetry/instrumentation/logging/version.py
+++ b/instrumentation/opentelemetry-instrumentation-logging/src/opentelemetry/instrumentation/logging/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-mysql/setup.cfg b/instrumentation/opentelemetry-instrumentation-mysql/setup.cfg
index 18759c865..0cd74b6c2 100644
--- a/instrumentation/opentelemetry-instrumentation-mysql/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-mysql/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation-dbapi == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation-dbapi == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
     mysql-connector-python ~= 8.0
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-mysql/src/opentelemetry/instrumentation/mysql/version.py b/instrumentation/opentelemetry-instrumentation-mysql/src/opentelemetry/instrumentation/mysql/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-mysql/src/opentelemetry/instrumentation/mysql/version.py
+++ b/instrumentation/opentelemetry-instrumentation-mysql/src/opentelemetry/instrumentation/mysql/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-psycopg2/setup.cfg b/instrumentation/opentelemetry-instrumentation-psycopg2/setup.cfg
index 79f2f795c..493c78166 100644
--- a/instrumentation/opentelemetry-instrumentation-psycopg2/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-psycopg2/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation-dbapi == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation-dbapi == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
     psycopg2-binary >= 2.7.3.1
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-psycopg2/src/opentelemetry/instrumentation/psycopg2/version.py b/instrumentation/opentelemetry-instrumentation-psycopg2/src/opentelemetry/instrumentation/psycopg2/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-psycopg2/src/opentelemetry/instrumentation/psycopg2/version.py
+++ b/instrumentation/opentelemetry-instrumentation-psycopg2/src/opentelemetry/instrumentation/psycopg2/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-pymemcache/setup.cfg b/instrumentation/opentelemetry-instrumentation-pymemcache/setup.cfg
index a5937d909..475b8c7d0 100644
--- a/instrumentation/opentelemetry-instrumentation-pymemcache/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-pymemcache/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     pymemcache ~= 1.3
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-pymemcache/src/opentelemetry/instrumentation/pymemcache/version.py b/instrumentation/opentelemetry-instrumentation-pymemcache/src/opentelemetry/instrumentation/pymemcache/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-pymemcache/src/opentelemetry/instrumentation/pymemcache/version.py
+++ b/instrumentation/opentelemetry-instrumentation-pymemcache/src/opentelemetry/instrumentation/pymemcache/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-pymongo/setup.cfg b/instrumentation/opentelemetry-instrumentation-pymongo/setup.cfg
index c0cab4839..f8392a860 100644
--- a/instrumentation/opentelemetry-instrumentation-pymongo/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-pymongo/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     pymongo ~= 3.1
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-pymongo/src/opentelemetry/instrumentation/pymongo/version.py b/instrumentation/opentelemetry-instrumentation-pymongo/src/opentelemetry/instrumentation/pymongo/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-pymongo/src/opentelemetry/instrumentation/pymongo/version.py
+++ b/instrumentation/opentelemetry-instrumentation-pymongo/src/opentelemetry/instrumentation/pymongo/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-pymysql/setup.cfg b/instrumentation/opentelemetry-instrumentation-pymysql/setup.cfg
index 726e606c5..5d02511d3 100644
--- a/instrumentation/opentelemetry-instrumentation-pymysql/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-pymysql/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation-dbapi == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation-dbapi == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
     PyMySQL ~=  0.10.1
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-pymysql/src/opentelemetry/instrumentation/pymysql/version.py b/instrumentation/opentelemetry-instrumentation-pymysql/src/opentelemetry/instrumentation/pymysql/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-pymysql/src/opentelemetry/instrumentation/pymysql/version.py
+++ b/instrumentation/opentelemetry-instrumentation-pymysql/src/opentelemetry/instrumentation/pymysql/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-pyramid/setup.cfg b/instrumentation/opentelemetry-instrumentation-pyramid/setup.cfg
index e9870d64e..f35fa413d 100644
--- a/instrumentation/opentelemetry-instrumentation-pyramid/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-pyramid/setup.cfg
@@ -39,11 +39,11 @@ package_dir=
 packages=find_namespace:
 install_requires =
     pyramid >= 1.7
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation-wsgi == 0.21.dev0
-    opentelemetry-util-http == 0.21.dev0
+    opentelemetry-instrumentation-wsgi == 0.21b0
+    opentelemetry-util-http == 0.21b0
     wrapt >= 1.0.0, < 2.0.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/version.py b/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/version.py
+++ b/instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-redis/setup.cfg b/instrumentation/opentelemetry-instrumentation-redis/setup.cfg
index 31e90b37d..088dd3190 100644
--- a/instrumentation/opentelemetry-instrumentation-redis/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-redis/setup.cfg
@@ -38,16 +38,16 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     redis >= 2.6
     wrapt >= 1.12.1
 
 [options.extras_require]
 test =
     opentelemetry-test == 0.21.dev0
-    opentelemetry-sdk == 1.2.0.dev0
+    opentelemetry-sdk == 1.2.0
 
 [options.packages.find]
 where = src
diff --git a/instrumentation/opentelemetry-instrumentation-redis/src/opentelemetry/instrumentation/redis/version.py b/instrumentation/opentelemetry-instrumentation-redis/src/opentelemetry/instrumentation/redis/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-redis/src/opentelemetry/instrumentation/redis/version.py
+++ b/instrumentation/opentelemetry-instrumentation-redis/src/opentelemetry/instrumentation/redis/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-requests/setup.cfg b/instrumentation/opentelemetry-instrumentation-requests/setup.cfg
index c49aa3342..63a830327 100644
--- a/instrumentation/opentelemetry-instrumentation-requests/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-requests/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     requests ~= 2.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-requests/src/opentelemetry/instrumentation/requests/version.py b/instrumentation/opentelemetry-instrumentation-requests/src/opentelemetry/instrumentation/requests/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-requests/src/opentelemetry/instrumentation/requests/version.py
+++ b/instrumentation/opentelemetry-instrumentation-requests/src/opentelemetry/instrumentation/requests/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-sklearn/setup.cfg b/instrumentation/opentelemetry-instrumentation-sklearn/setup.cfg
index f95094ef9..ea6eecd5f 100644
--- a/instrumentation/opentelemetry-instrumentation-sklearn/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-sklearn/setup.cfg
@@ -38,8 +38,8 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation == 0.21b0
     scikit-learn ~= 0.22.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-sklearn/src/opentelemetry/instrumentation/sklearn/version.py b/instrumentation/opentelemetry-instrumentation-sklearn/src/opentelemetry/instrumentation/sklearn/version.py
index 0b40082f6..6474e480e 100644
--- a/instrumentation/opentelemetry-instrumentation-sklearn/src/opentelemetry/instrumentation/sklearn/version.py
+++ b/instrumentation/opentelemetry-instrumentation-sklearn/src/opentelemetry/instrumentation/sklearn/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-sqlalchemy/setup.cfg b/instrumentation/opentelemetry-instrumentation-sqlalchemy/setup.cfg
index 3b4998dc6..914efc29f 100644
--- a/instrumentation/opentelemetry-instrumentation-sqlalchemy/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-sqlalchemy/setup.cfg
@@ -38,15 +38,15 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires = 
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     wrapt >= 1.11.2
     sqlalchemy
 
 [options.extras_require]
 test =
-    opentelemetry-sdk == 1.2.0.dev0
+    opentelemetry-sdk == 1.2.0
     pytest
 
 [options.packages.find]
diff --git a/instrumentation/opentelemetry-instrumentation-sqlalchemy/src/opentelemetry/instrumentation/sqlalchemy/version.py b/instrumentation/opentelemetry-instrumentation-sqlalchemy/src/opentelemetry/instrumentation/sqlalchemy/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-sqlalchemy/src/opentelemetry/instrumentation/sqlalchemy/version.py
+++ b/instrumentation/opentelemetry-instrumentation-sqlalchemy/src/opentelemetry/instrumentation/sqlalchemy/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-sqlite3/setup.cfg b/instrumentation/opentelemetry-instrumentation-sqlite3/setup.cfg
index 8c5574728..a998bbb7a 100644
--- a/instrumentation/opentelemetry-instrumentation-sqlite3/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-sqlite3/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation-dbapi == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation-dbapi == 0.21b0
+    opentelemetry-instrumentation == 0.21b0
     wrapt >= 1.0.0, < 2.0.0
 
 [options.extras_require]
diff --git a/instrumentation/opentelemetry-instrumentation-sqlite3/src/opentelemetry/instrumentation/sqlite3/version.py b/instrumentation/opentelemetry-instrumentation-sqlite3/src/opentelemetry/instrumentation/sqlite3/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-sqlite3/src/opentelemetry/instrumentation/sqlite3/version.py
+++ b/instrumentation/opentelemetry-instrumentation-sqlite3/src/opentelemetry/instrumentation/sqlite3/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-starlette/setup.cfg b/instrumentation/opentelemetry-instrumentation-starlette/setup.cfg
index 59a4ea16e..b16a866c3 100644
--- a/instrumentation/opentelemetry-instrumentation-starlette/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-starlette/setup.cfg
@@ -38,11 +38,11 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-instrumentation-asgi == 0.21.dev0
-    opentelemetry-util-http == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-instrumentation-asgi == 0.21b0
+    opentelemetry-util-http == 0.21b0
 
 [options.entry_points]
 opentelemetry_instrumentor =
diff --git a/instrumentation/opentelemetry-instrumentation-starlette/src/opentelemetry/instrumentation/starlette/version.py b/instrumentation/opentelemetry-instrumentation-starlette/src/opentelemetry/instrumentation/starlette/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-starlette/src/opentelemetry/instrumentation/starlette/version.py
+++ b/instrumentation/opentelemetry-instrumentation-starlette/src/opentelemetry/instrumentation/starlette/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-tornado/setup.cfg b/instrumentation/opentelemetry-instrumentation-tornado/setup.cfg
index 217aa6cf7..09f78568d 100644
--- a/instrumentation/opentelemetry-instrumentation-tornado/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-tornado/setup.cfg
@@ -38,10 +38,10 @@ package_dir=
 packages=find_namespace:
 install_requires =
     tornado >= 6.0
-    opentelemetry-instrumentation == 0.21.dev0
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-instrumentation == 0.21b0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-util-http == 0.21.dev0
+    opentelemetry-util-http == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/version.py b/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/version.py
+++ b/instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-urllib/setup.cfg b/instrumentation/opentelemetry-instrumentation-urllib/setup.cfg
index 35ae810db..05dd594f9 100644
--- a/instrumentation/opentelemetry-instrumentation-urllib/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-urllib/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/version.py b/instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/version.py
+++ b/instrumentation/opentelemetry-instrumentation-urllib/src/opentelemetry/instrumentation/urllib/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-urllib3/setup.cfg b/instrumentation/opentelemetry-instrumentation-urllib3/setup.cfg
index f2051cfcd..5fff088ee 100644
--- a/instrumentation/opentelemetry-instrumentation-urllib3/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-urllib3/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
     urllib3 >= 1.0.0, < 2.0.0
     wrapt >= 1.0.0, < 2.0.0
 
diff --git a/instrumentation/opentelemetry-instrumentation-urllib3/src/opentelemetry/instrumentation/urllib3/version.py b/instrumentation/opentelemetry-instrumentation-urllib3/src/opentelemetry/instrumentation/urllib3/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-urllib3/src/opentelemetry/instrumentation/urllib3/version.py
+++ b/instrumentation/opentelemetry-instrumentation-urllib3/src/opentelemetry/instrumentation/urllib3/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/instrumentation/opentelemetry-instrumentation-wsgi/setup.cfg b/instrumentation/opentelemetry-instrumentation-wsgi/setup.cfg
index 9d1f47e45..7a12175b7 100644
--- a/instrumentation/opentelemetry-instrumentation-wsgi/setup.cfg
+++ b/instrumentation/opentelemetry-instrumentation-wsgi/setup.cfg
@@ -38,9 +38,9 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     opentelemetry-semantic-conventions == 0.21.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-instrumentation == 0.21b0
 
 [options.extras_require]
 test =
diff --git a/instrumentation/opentelemetry-instrumentation-wsgi/src/opentelemetry/instrumentation/wsgi/version.py b/instrumentation/opentelemetry-instrumentation-wsgi/src/opentelemetry/instrumentation/wsgi/version.py
index 2b0817526..df84e5962 100644
--- a/instrumentation/opentelemetry-instrumentation-wsgi/src/opentelemetry/instrumentation/wsgi/version.py
+++ b/instrumentation/opentelemetry-instrumentation-wsgi/src/opentelemetry/instrumentation/wsgi/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/opentelemetry-instrumentation/setup.cfg b/opentelemetry-instrumentation/setup.cfg
index 382e5725b..b0a66c529 100644
--- a/opentelemetry-instrumentation/setup.cfg
+++ b/opentelemetry-instrumentation/setup.cfg
@@ -41,7 +41,7 @@ packages=find_namespace:
 zip_safe = False
 include_package_data = True
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
     wrapt >= 1.0.0, < 2.0.0
 
 [options.packages.find]
diff --git a/opentelemetry-instrumentation/src/opentelemetry/instrumentation/version.py b/opentelemetry-instrumentation/src/opentelemetry/instrumentation/version.py
index 2b0817526..df84e5962 100644
--- a/opentelemetry-instrumentation/src/opentelemetry/instrumentation/version.py
+++ b/opentelemetry-instrumentation/src/opentelemetry/instrumentation/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/propagator/opentelemetry-propagator-ot-trace/setup.cfg b/propagator/opentelemetry-propagator-ot-trace/setup.cfg
index 5cc1d98b3..f4571ae08 100644
--- a/propagator/opentelemetry-propagator-ot-trace/setup.cfg
+++ b/propagator/opentelemetry-propagator-ot-trace/setup.cfg
@@ -38,8 +38,8 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-sdk == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-sdk == 1.2.0
 
 [options.packages.find]
 where = src
diff --git a/propagator/opentelemetry-propagator-ot-trace/src/opentelemetry/propagators/ot_trace/version.py b/propagator/opentelemetry-propagator-ot-trace/src/opentelemetry/propagators/ot_trace/version.py
index 2b0817526..df84e5962 100644
--- a/propagator/opentelemetry-propagator-ot-trace/src/opentelemetry/propagators/ot_trace/version.py
+++ b/propagator/opentelemetry-propagator-ot-trace/src/opentelemetry/propagators/ot_trace/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/scripts/eachdist.py b/scripts/eachdist.py
index 8426d6f61..dbdd746ec 100755
--- a/scripts/eachdist.py
+++ b/scripts/eachdist.py
@@ -229,16 +229,18 @@ def parse_args(args=None):
     )
 
     releaseparser = subparsers.add_parser(
-        "release", help="Prepares release, used by maintainers and CI",
+        "update_versions",
+        help="Updates version numbers, used by maintainers and CI",
     )
     releaseparser.set_defaults(func=release_args)
-    releaseparser.add_argument("--version", required=True)
+    releaseparser.add_argument("--versions", required=True)
     releaseparser.add_argument(
         "releaseargs", nargs=argparse.REMAINDER, help=extraargs_help("pytest")
     )
 
     fmtparser = subparsers.add_parser(
-        "format", help="Formats all source code with black and isort.",
+        "format",
+        help="Formats all source code with black and isort.",
     )
     fmtparser.set_defaults(func=format_args)
     fmtparser.add_argument(
@@ -247,6 +249,21 @@ def parse_args(args=None):
         help="Format only this path instead of entire repository",
     )
 
+    versionparser = subparsers.add_parser(
+        "version",
+        help="Get the version for a release",
+    )
+    versionparser.set_defaults(func=version_args)
+    versionparser.add_argument(
+        "--mode",
+        "-m",
+        default="DEFAULT",
+        help=cleandoc(
+            """Section of config file to use for target selection configuration.
+        See description of exec for available options."""
+        ),
+    )
+
     return parser.parse_args(args)
 
 
@@ -353,7 +370,7 @@ def runsubprocess(dry_run, params, *args, **kwargs):
 
     check = kwargs.pop("check")  # Enforce specifying check
 
-    print(">>>", cmdstr, file=sys.stderr)
+    print(">>>", cmdstr, file=sys.stderr, flush=True)
 
     # This is a workaround for subprocess.run(['python']) leaving the virtualenv on Win32.
     # The cause for this is that when running the python.exe in a virtualenv,
@@ -366,7 +383,7 @@ def runsubprocess(dry_run, params, *args, **kwargs):
     # Only this would find the "correct" python.exe.
 
     params = list(params)
-    executable = shutil.which(params[0])  # On Win32, pytho
+    executable = shutil.which(params[0])
     if executable:
         params[0] = executable
     try:
@@ -522,7 +539,11 @@ def lint_args(args):
     execute_args(
         parse_subargs(
             args,
-            ("exec", "python scripts/check_for_valid_readme.py {}", "--all",),
+            (
+                "exec",
+                "python scripts/check_for_valid_readme.py {}",
+                "--all",
+            ),
         )
     )
 
@@ -532,13 +553,13 @@ def update_changelog(path, version, new_entry):
     try:
         with open(path) as changelog:
             text = changelog.read()
-            if "## Version {}".format(version) in text:
+            if "## [{}]".format(version) in text:
                 raise AttributeError(
                     "{} already contans version {}".format(path, version)
                 )
         with open(path) as changelog:
             for line in changelog:
-                if line.startswith("## Unreleased"):
+                if line.startswith("## [Unreleased]"):
                     unreleased_changes = False
                 elif line.startswith("## "):
                     break
@@ -551,26 +572,26 @@ def update_changelog(path, version, new_entry):
 
     if unreleased_changes:
         print("updating: {}".format(path))
-        text = re.sub("## Unreleased", new_entry, text)
+        text = re.sub(r"## \[Unreleased\].*", new_entry, text)
         with open(path, "w") as changelog:
             changelog.write(text)
 
 
-def update_changelogs(targets, version):
-    print("updating CHANGELOG")
+def update_changelogs(version):
     today = datetime.now().strftime("%Y-%m-%d")
-    new_entry = "## Unreleased\n\n## Version {}\n\nReleased {}".format(
-        version, today
+    new_entry = """## [Unreleased](https://github.com/open-telemetry/opentelemetry-python/compare/v{version}...HEAD)
+
+## [{version}](https://github.com/open-telemetry/opentelemetry-python/releases/tag/v{version}) - {today}
+
+""".format(
+        version=version, today=today
     )
     errors = False
-    for target in targets:
-        try:
-            update_changelog(
-                "{}/CHANGELOG.md".format(target), version, new_entry
-            )
-        except Exception as err:  # pylint: disable=broad-except
-            print(str(err))
-            errors = True
+    try:
+        update_changelog("./CHANGELOG.md", version, new_entry)
+    except Exception as err:  # pylint: disable=broad-except
+        print(str(err))
+        errors = True
 
     if errors:
         sys.exit(1)
@@ -583,29 +604,44 @@ def find(name, path):
     return None
 
 
-def update_version_files(targets, version):
+def filter_packages(targets, packages):
+    if not packages:
+        return targets
+    filtered_packages = []
+    for target in targets:
+        for pkg in packages:
+            if pkg in str(target):
+                filtered_packages.append(target)
+                break
+    return filtered_packages
+
+
+def update_version_files(targets, version, packages):
     print("updating version.py files")
+    targets = filter_packages(targets, packages)
     update_files(
         targets,
-        version,
         "version.py",
         "__version__ .*",
         '__version__ = "{}"'.format(version),
     )
 
 
-def update_dependencies(targets, version):
+def update_dependencies(targets, version, packages):
     print("updating dependencies")
-    update_files(
-        targets,
-        version,
-        "setup.cfg",
-        r"(opentelemetry-.*)==(.*)",
-        r"\1== " + version,
-    )
+    if packages is None:
+        packages = targets
+    for pkg in packages:
+        package_name = str(pkg).split("/")[-1]
+        update_files(
+            targets,
+            "setup.cfg",
+            r"({}.*)==(.*)".format(package_name),
+            r"\1== " + version,
+        )
 
 
-def update_files(targets, version, filename, search, replace):
+def update_files(targets, filename, search, replace):
     errors = False
     for target in targets:
         curr_file = find(filename, target)
@@ -616,9 +652,8 @@ def update_files(targets, version, filename, search, replace):
         with open(curr_file) as _file:
             text = _file.read()
 
-        if version in text:
-            print("{} already contans version {}".format(curr_file, version))
-            errors = True
+        if replace in text:
+            print("{} already contains {}".format(curr_file, replace))
             continue
 
         with open(curr_file, "w") as _file:
@@ -633,10 +668,22 @@ def release_args(args):
 
     rootpath = find_projectroot()
     targets = list(find_targets_unordered(rootpath))
-    version = args.version
-    update_dependencies(targets, version)
-    update_version_files(targets, version)
-    update_changelogs(targets, version)
+    cfg = ConfigParser()
+    cfg.read(str(find_projectroot() / "eachdist.ini"))
+    versions = args.versions
+    updated_versions = []
+    for group in versions.split(","):
+        mcfg = cfg[group]
+        version = mcfg["version"]
+        updated_versions.append(version)
+        packages = None
+        if "packages" in mcfg:
+            packages = mcfg["packages"].split()
+        print("update {} packages to {}".format(group, version))
+        update_dependencies(targets, version, packages)
+        update_version_files(targets, version, packages)
+
+    update_changelogs("-".join(updated_versions))
 
 
 def test_args(args):
@@ -660,7 +707,10 @@ def format_args(args):
         format_dir = os.path.join(format_dir, args.path)
 
     runsubprocess(
-        args.dry_run, ("black", "."), cwd=format_dir, check=True,
+        args.dry_run,
+        ("black", "."),
+        cwd=format_dir,
+        check=True,
     )
     runsubprocess(
         args.dry_run,
@@ -670,6 +720,12 @@ def format_args(args):
     )
 
 
+def version_args(args):
+    cfg = ConfigParser()
+    cfg.read(str(find_projectroot() / "eachdist.ini"))
+    print(cfg[args.mode]["version"])
+
+
 def main():
     args = parse_args()
     args.func(args)
diff --git a/scripts/prepare_release.sh b/scripts/prepare_release.sh
index 2c1048a0e..607b6189b 100755
--- a/scripts/prepare_release.sh
+++ b/scripts/prepare_release.sh
@@ -1,4 +1,4 @@
-#!/bin/zsh
+#!/bin/bash
 #
 # This script:
 #   1. parses the version number from the branch name
@@ -11,30 +11,22 @@
 #      triggering unnecessary pull requests
 #
 
-VERSION=`echo $1 | awk -F "/" '{print $NF}'`
+VERSION=$(./scripts/eachdist.py version --mode stable)-$(./scripts/eachdist.py version --mode prerelease)
 echo "Using version ${VERSION}"
 
-# check the version matches expected versioning e.g
-# 0.6, 0.6b, 0.6b0, 0.6.0
-if [[ ! "${VERSION}" =~ ^([0-9])(\.*[0-9]{1,5}[a-b]*){1,3}$ ]]; then
-    echo "Version number invalid: $VERSION"
-    exit 1
-fi
 
 # create the release branch
 git checkout -b release/${VERSION}
 git push origin release/${VERSION}
 
-# create a temporary branch to create a PR for updated version and changelogs
-git checkout -b release/${VERSION}-auto
-./scripts/eachdist.py release --version ${VERSION}
+./scripts/eachdist.py update_versions --versions stable,prerelease
 rc=$?
 if [ $rc != 0 ]; then
     echo "::set-output name=version_updated::0"
     exit 0
 fi
 
-git add **/version.py **/setup.cfg **/CHANGELOG.md
+git add .
 
 git commit -m "updating changelogs and version to ${VERSION}"
 
diff --git a/sdk-extension/opentelemetry-sdk-extension-aws/setup.cfg b/sdk-extension/opentelemetry-sdk-extension-aws/setup.cfg
index 6cf0ef320..703824c4b 100644
--- a/sdk-extension/opentelemetry-sdk-extension-aws/setup.cfg
+++ b/sdk-extension/opentelemetry-sdk-extension-aws/setup.cfg
@@ -38,7 +38,7 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
+    opentelemetry-api == 1.2.0
 
 [options.entry_points]
 opentelemetry_propagator =
diff --git a/sdk-extension/opentelemetry-sdk-extension-aws/src/opentelemetry/sdk/extension/aws/version.py b/sdk-extension/opentelemetry-sdk-extension-aws/src/opentelemetry/sdk/extension/aws/version.py
index 2b0817526..df84e5962 100644
--- a/sdk-extension/opentelemetry-sdk-extension-aws/src/opentelemetry/sdk/extension/aws/version.py
+++ b/sdk-extension/opentelemetry-sdk-extension-aws/src/opentelemetry/sdk/extension/aws/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"
diff --git a/util/opentelemetry-util-http/setup.cfg b/util/opentelemetry-util-http/setup.cfg
index 98b0e36e1..a7687ca40 100644
--- a/util/opentelemetry-util-http/setup.cfg
+++ b/util/opentelemetry-util-http/setup.cfg
@@ -38,8 +38,8 @@ package_dir=
     =src
 packages=find_namespace:
 install_requires =
-    opentelemetry-api == 1.2.0.dev0
-    opentelemetry-instrumentation == 0.21.dev0
+    opentelemetry-api == 1.2.0
+    opentelemetry-instrumentation == 0.21b0
     asgiref ~= 3.0
 
 [options.extras_require]
diff --git a/util/opentelemetry-util-http/src/opentelemetry/util/http/version.py b/util/opentelemetry-util-http/src/opentelemetry/util/http/version.py
index 2b0817526..df84e5962 100644
--- a/util/opentelemetry-util-http/src/opentelemetry/util/http/version.py
+++ b/util/opentelemetry-util-http/src/opentelemetry/util/http/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.21.dev0"
+__version__ = "0.21b0"