diff --git a/changelog.md b/changelog.md
index f0c0bc9a..5c351521 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,33 @@
+# Microsoft 365 Agents SDK for Python - Release Notes v0.8.0
+
+**Release Date:** February 23, 2026
+**Previous Version:** 0.7.0 (Released January 21, 2026)
+
+## Major Features & Enhancements
+
+- **Microsoft Copilot Studio (MCS) Connector**: Full MCS connector support with OAuth OBO token exchange, new `connector_user` role type, and `copilot_studio` channel enum value (#295)
+- **Enhanced Multi-Tenant Authentication**: Dynamic MSAL client resolution with robust authority and tenant handling for multi-tenant scenarios. Updated MSAL version (#301, #307)
+- **Integration Testing Framework Overhaul**: Replaced legacy data-driven test infrastructure with a modern scenario-based framework. Introduces `Scenario`, `ClientFactory`, and `AgentClient` abstractions; a fluent assertion API with per-item field-mismatch reporting; a new CLI with `env`, `chat`, `post`, and `scenario run` commands; and a `@pytest.mark.agent_test` plugin exposing agent internals as fixtures (#315)
+- **Copilot Studio Client – DirectConnect URL Support**: Added `direct_connect_url` parameter to `ConnectionSettings` for simplified single-URL connection setup, bypassing environment-ID lookup. Includes automatic cloud-based token-audience resolution from the URL (#325)
+
+## New Models & APIs
+
+- **`StartRequest`**: Advanced conversation-start options with optional `locale` and `conversation_id` parameters (#325)
+- **`SubscribeEvent` / `SubscribeRequest` / `SubscribeResponse`**: Models for real-time event streaming with SSE resumption support (#325)
+- **`UserAgentHelper`**: Utility class that automatically injects SDK version and platform information into HTTP `User-Agent` headers (#325)
+- **`ConnectionSettings.populate_from_environment()`**: Static method that loads `ConnectionSettings` from environment variables (#325)
+- **`use_experimental_endpoint` / `enable_diagnostics`**: New `ConnectionSettings` flags for experimental endpoint capture and HTTP diagnostic logging (#325)
+
+## Bug Fixes
+
+- **FastAPI JWT Middleware**: Removed incorrect `await` from synchronous `get_anonymous_claims()` call in FastAPI JWT middleware (#299)
+
+## Developer Experience
+
+- **JWT Token Decode Demo**: New Adaptive Card integration demonstrating JWT token decode functionality (#307)
+
+---
+
 # Microsoft 365 Agents SDK for Python - Release Notes v0.7.0
 
 **Release Date:** January 21, 2026
diff --git a/libraries/microsoft-agents-activity/readme.md b/libraries/microsoft-agents-activity/readme.md
index 2a74e6e3..684dd39e 100644
--- a/libraries/microsoft-agents-activity/readme.md
+++ b/libraries/microsoft-agents-activity/readme.md
@@ -15,6 +15,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-authentication-msal/readme.md b/libraries/microsoft-agents-authentication-msal/readme.md
index 4158a66a..46e3fb6e 100644
--- a/libraries/microsoft-agents-authentication-msal/readme.md
+++ b/libraries/microsoft-agents-authentication-msal/readme.md
@@ -15,6 +15,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-copilotstudio-client/readme.md b/libraries/microsoft-agents-copilotstudio-client/readme.md
index bd1dbf4a..63378ceb 100644
--- a/libraries/microsoft-agents-copilotstudio-client/readme.md
+++ b/libraries/microsoft-agents-copilotstudio-client/readme.md
@@ -16,6 +16,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-hosting-aiohttp/readme.md b/libraries/microsoft-agents-hosting-aiohttp/readme.md
index 20d2652f..12c597c4 100644
--- a/libraries/microsoft-agents-hosting-aiohttp/readme.md
+++ b/libraries/microsoft-agents-hosting-aiohttp/readme.md
@@ -17,6 +17,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-hosting-core/readme.md b/libraries/microsoft-agents-hosting-core/readme.md
index 51432066..de60f9c4 100644
--- a/libraries/microsoft-agents-hosting-core/readme.md
+++ b/libraries/microsoft-agents-hosting-core/readme.md
@@ -16,6 +16,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-hosting-fastapi/readme.md b/libraries/microsoft-agents-hosting-fastapi/readme.md
index 3fbb2068..9b6f2ec7 100644
--- a/libraries/microsoft-agents-hosting-fastapi/readme.md
+++ b/libraries/microsoft-agents-hosting-fastapi/readme.md
@@ -9,6 +9,15 @@ This library provides FastAPI integration for Microsoft Agents, enabling you to
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-hosting-teams/readme.md b/libraries/microsoft-agents-hosting-teams/readme.md
index 4e64f90d..ab967eb6 100644
--- a/libraries/microsoft-agents-hosting-teams/readme.md
+++ b/libraries/microsoft-agents-hosting-teams/readme.md
@@ -18,6 +18,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-storage-blob/readme.md b/libraries/microsoft-agents-storage-blob/readme.md
index 07115e2b..7c1ed4d3 100644
--- a/libraries/microsoft-agents-storage-blob/readme.md
+++ b/libraries/microsoft-agents-storage-blob/readme.md
@@ -16,6 +16,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/libraries/microsoft-agents-storage-cosmos/readme.md b/libraries/microsoft-agents-storage-cosmos/readme.md
index 6fe52b9c..de5f0cce 100644
--- a/libraries/microsoft-agents-storage-cosmos/readme.md
+++ b/libraries/microsoft-agents-storage-cosmos/readme.md
@@ -16,6 +16,15 @@ This library is part of the **Microsoft 365 Agents SDK for Python** - a comprehe
     <th style="width:20%">Date</th>
     <th style="width:60%">Release Notes</th>
   </tr>
+  <tr>
+    <td>0.8.0</td>
+    <td>2026-02-23</td>
+    <td>
+      <a href="https://github.com/microsoft/Agents-for-python/blob/main/changelog.md#microsoft-365-agents-sdk-for-python---release-notes-v080">
+        0.8.0 Release Notes
+      </a>
+    </td>
+  </tr>
   <tr>
     <td>0.7.0</td>
     <td>2026-01-21</td>
diff --git a/versioning/TARGET-VERSION b/versioning/TARGET-VERSION
index df676982..83eda3e7 100644
--- a/versioning/TARGET-VERSION
+++ b/versioning/TARGET-VERSION
@@ -1 +1 @@
-0.8.0.
+0.9.0.