Merge pull request #3705 from MicrosoftDocs/main

main to live - Jan. 29, 2026

Author: leahmsft

microsoft-edge/devtools/whats-new/143.md

@@ -1,6 +1,6 @@
 ---
 title: What's new in DevTools (Microsoft Edge 143)
-description: Activity Bar will only appear horizontally in Edge 144. View objects retained by event handlers in the Memory tool. And more.
+description: Activity Bar will only appear horizontally in Edge 144. View objects retained by event handlers in the Memory tool. And more.  # key words before col 158
 author: MSEdgeTeam
 ms.author: msedgedevrel
 ms.topic: article

microsoft-edge/devtools/whats-new/144-images/activity-bar.png

@@ -0,0 +1,40 @@
+---
+title: What's new in DevTools (Microsoft Edge 144)
+description: The Activity Bar is now always displayed horizontally. And more.  # key words before col 158
+author: MSEdgeTeam
+ms.author: msedgedevrel
+ms.topic: article
+ms.service: microsoft-edge
+ms.subservice: devtools
+ms.date: 1/15/2026
+---
+# What's new in DevTools (Microsoft Edge 144)
+
+These are the latest features in the Stable release of Microsoft Edge DevTools.
+
+
+<!-- ====================================================================== -->
+## Activity Bar is always displayed horizontally
+
+<!-- Subtitle: The vertical Activity Bar is no longer supported.-->
+
+Starting with Microsoft Edge 144, the **Activity Bar** is always displayed horizontally, at the top of the DevTools window.  Displaying the **Activity Bar** vertically is no longer supported.
+
+![Horizontal Activity Bar](./144-images/activity-bar.png)
+
+
+<!-- ====================================================================== -->
+## Announcements from the Chromium project
+<!-- https://developer.chrome.com/blog/new-in-devtools-144 -->
+
+Microsoft Edge 144 also includes the following updates from the Chromium project:
+
+* [Edit @font-face and @font-feature-values rules](https://developer.chrome.com/blog/new-in-devtools-144#font-face)
+* [Adopted stylesheets in the Elements panel](https://developer.chrome.com/blog/new-in-devtools-144#adopted-stylesheets)
+
+
+<!-- ====================================================================== -->
+## See also
+
+* [What's new in Microsoft Edge DevTools](./whats-new.md)
+* [Release notes for Microsoft Edge web platform](../../web-platform/release-notes/index.md)

microsoft-edge/devtools/whats-new/144.md

@@ -125,6 +125,10 @@
               href: ./devtools/whats-new/whats-new.md  # todo: ought to be index.md
               displayName: release notes, announcements
 # latest 10 What's new
+            - name: Microsoft Edge 144
+              href: ./devtools/whats-new/144.md
+              displayName: What's new in DevTools (Microsoft Edge 144)  # page title
+
             - name: Microsoft Edge 143
               href: ./devtools/whats-new/143.md
               displayName: What's new in DevTools (Microsoft Edge 143)  # page title
@@ -160,15 +164,14 @@
             - name: Microsoft Edge 135
               href: ./devtools/whats-new/2025/04/devtools-135.md
               displayName: What's new in DevTools (Microsoft Edge 135)  # page title
-
-            - name: Microsoft Edge 134
-              href: ./devtools/whats-new/2025/03/devtools-134.md
-              displayName: What's new in DevTools (Microsoft Edge 134)  # page title
-
             # keep 10 items above
 # -------------------------------------
             - name: Archive
               items:
+                - name: Microsoft Edge 134
+                  href: ./devtools/whats-new/2025/03/devtools-134.md
+                  displayName: What's new in DevTools (Microsoft Edge 134)  # page title
+
                 - name: Microsoft Edge 133
                   href: ./devtools/whats-new/2025/02/devtools-133.md
                   displayName: What's new in DevTools (Microsoft Edge 133)  # page title