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diff --git a/microsoft-edge/devtools/whats-new/149.md b/microsoft-edge/devtools/whats-new/149.md
new file mode 100644
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+++ b/microsoft-edge/devtools/whats-new/149.md
@@ -0,0 +1,67 @@
+---
+title: What's new in DevTools (Microsoft Edge 149)
+description: todo. And more.  # key words before col 158
+author: MSEdgeTeam
+ms.author: msedgedevrel
+ms.topic: article
+ms.service: microsoft-edge
+ms.subservice: devtools
+ms.date: 06/04/2026
+---
+# What's new in DevTools (Microsoft Edge 149)
+<!-- todo: desc yaml field -->
+
+These are the latest features in the Stable release of Microsoft Edge DevTools.
+
+
+<!-- ====================================================================== -->
+## Feature 1
+
+<!-- Subtitle: .-->
+
+desc
+
+![Feature 1](./149-images/feature.png)
+
+
+<!-- ====================================================================== -->
+## Feature 2
+
+<!-- Subtitle: .-->
+
+desc
+
+![Feature 2](./149-images/feature.png)
+
+
+<!-- ====================================================================== -->
+## Feature 3
+
+<!-- Subtitle: .-->
+
+desc
+
+![Feature 3](./149-images/feature.png)
+
+
+<!-- ====================================================================== -->
+## Announcements from the Chromium project
+<!-- https://developer.chrome.com/blog/new-in-devtools-149 -->
+
+Microsoft Edge 149 also includes the following updates from the Chromium project:
+
+* [DevTools for agents](https://developer.chrome.com/blog/new-in-devtools-149#agents)
+* [AI assistance](https://developer.chrome.com/blog/new-in-devtools-149#ai-assistance)
+* [WebMCP](https://developer.chrome.com/blog/new-in-devtools-149#webmcp)
+* [Code completion for CSS](https://developer.chrome.com/blog/new-in-devtools-149#css-code-completion)
+* [APCA color contrast guidelines promoted to stable](https://developer.chrome.com/blog/new-in-devtools-149#apca)
+* [Dynamic Device Mode user agent](https://developer.chrome.com/blog/new-in-devtools-149#device-mode-user-agent)
+* [Other highlights](https://developer.chrome.com/blog/new-in-devtools-149#misc)
+<!-- todo: maybe remove some links -->
+
+
+<!-- ====================================================================== -->
+## See also
+
+* [What's new in Microsoft Edge DevTools](./index.md)
+* [Release notes for Microsoft Edge web platform](../../web-platform/release-notes/index.md)
diff --git a/microsoft-edge/toc.yml b/microsoft-edge/toc.yml
index d8b64454ed..26d97263c9 100644
--- a/microsoft-edge/toc.yml
+++ b/microsoft-edge/toc.yml
@@ -156,6 +156,10 @@
               href: ./devtools/whats-new/index.md
               displayName: release notes, announcements
 # latest 10 What's new
+            - name: Microsoft Edge 149
+              href: ./devtools/whats-new/149.md
+              displayName: What's new in DevTools (Microsoft Edge 149)  # page title
+
             - name: Microsoft Edge 148
               href: ./devtools/whats-new/148.md
               displayName: What's new in DevTools (Microsoft Edge 148)  # page title
@@ -191,14 +195,14 @@
             - name: Microsoft Edge 140
               href: ./devtools/whats-new/2025/09/devtools-140.md
               displayName: What's new in DevTools (Microsoft Edge 140)  # page title
-
-            - name: Microsoft Edge 139
-              href: ./devtools/whats-new/2025/08/devtools-139.md
-              displayName: What's new in DevTools (Microsoft Edge 139)  # page title
             # keep 10 items above
 # -------------------------------------
             - name: Archive
               items:
+                - name: Microsoft Edge 139
+                  href: ./devtools/whats-new/2025/08/devtools-139.md
+                  displayName: What's new in DevTools (Microsoft Edge 139)  # page title
+
                 - name: Microsoft Edge 138
                   href: ./devtools/whats-new/2025/06/devtools-138.md
                   displayName: What's new in DevTools (Microsoft Edge 138)  # page title
diff --git a/microsoft-edge/web-platform/release-notes/149.md b/microsoft-edge/web-platform/release-notes/149.md
index 8ec1cc5925..ebf5cb64c0 100644
--- a/microsoft-edge/web-platform/release-notes/149.md
+++ b/microsoft-edge/web-platform/release-notes/149.md
@@ -44,10 +44,7 @@ To stay up-to-date and get the latest web platform features, download a preview
 <!-- ====================================================================== -->
 ## Edge DevTools
 
-See [What's new in Microsoft Edge DevTools](../../devtools/whats-new/index.md).
-<!-- todo: when exists, use instead:
 See [What's new in DevTools (Microsoft Edge 149)](../../devtools/whats-new/149.md).
--->
 
 
 <!-- ====================================================================== -->