diff --git a/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md b/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md
index 37bebb10e77..135e8f96372 100644
--- a/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md
+++ b/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 * Added extension methods to support using the [Logs Bridge
   API](https://github.com/open-telemetry/opentelemetry-specification/blob/976432b74c565e8a84af3570e9b82cb95e1d844c/specification/logs/bridge-api.md)
   implementation (eg `LoggerProviderBuilder`) with dependency injection.
diff --git a/src/OpenTelemetry.Api/CHANGELOG.md b/src/OpenTelemetry.Api/CHANGELOG.md
index fcc99613615..30bd4685d90 100644
--- a/src/OpenTelemetry.Api/CHANGELOG.md
+++ b/src/OpenTelemetry.Api/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 * Updated `System.Diagnostics.DiagnosticSource` package version to `7.0.2`.
   ([#4576](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4576))
 
diff --git a/src/OpenTelemetry.Exporter.Console/CHANGELOG.md b/src/OpenTelemetry.Exporter.Console/CHANGELOG.md
index c13379b6420..e7c5255d82b 100644
--- a/src/OpenTelemetry.Exporter.Console/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Console/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 * Add back support for Exemplars. See [exemplars](../../docs/metrics/customizing-the-sdk/README.md#exemplars)
   for instructions to enable exemplars.
   ([#4553](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4553))
diff --git a/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md b/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md
index 77d52dfbf3c..2947bb52bc8 100644
--- a/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 * Added `LoggerProviderBuilder.AddInMemoryExporter` registration extension.
   ([#4584](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4584))
 
diff --git a/src/OpenTelemetry.Exporter.Jaeger/CHANGELOG.md b/src/OpenTelemetry.Exporter.Jaeger/CHANGELOG.md
index bdd4d000b78..f7b4af55bf4 100644
--- a/src/OpenTelemetry.Exporter.Jaeger/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Jaeger/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 ## 1.5.1
 
 Released 2023-Jun-26
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
index 594e92e46a5..b8ce4b2b252 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 * Merged `OpenTelemetry.Exporter.OpenTelemetryProtocol.Logs` package into
   `OpenTelemetry.Exporter.OpenTelemetryProtocol`. Going Forward,
   `OpenTelemetry.Exporter.OpenTelemetryProtocol` will be the only package needed
diff --git a/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md b/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md
index c52cb23f52b..d75871cdbe0 100644
--- a/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 ## 1.5.0-rc.1
 
 Released 2023-May-25
diff --git a/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md b/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md
index a44e143d48b..a7a8d3b09c9 100644
--- a/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 ## 1.5.0-rc.1
 
 Released 2023-May-25
diff --git a/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md b/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md
index f2e21b66c06..590018cb0b6 100644
--- a/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 ## 1.5.1
 
 Released 2023-Jun-26
diff --git a/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md b/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md
index 73c09094a4f..5019a0e3bed 100644
--- a/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md
+++ b/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 ## 1.5.1
 
 Released 2023-Jun-26
diff --git a/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md b/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md
index ae47a662498..bc61adc5d56 100644
--- a/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md
+++ b/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 ## 1.5.1
 
 Released 2023-Jun-26
diff --git a/src/OpenTelemetry/CHANGELOG.md b/src/OpenTelemetry/CHANGELOG.md
index 39fd0dc1b6f..396db7aee78 100644
--- a/src/OpenTelemetry/CHANGELOG.md
+++ b/src/OpenTelemetry/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.6.0-alpha.1
+
+Released 2023-Jul-12
+
 * Add back support for Exemplars. See [exemplars](../../docs/metrics/customizing-the-sdk/README.md#exemplars)
   for instructions to enable exemplars.
   ([#4553](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4553))