What's New in DevTools (Microsoft Edge 138) (#3489)

* links

* desc todo

* Edge release schedule

* 06 dir

* trim links

* -guide-chromium

---------

Co-authored-by: leahmsft <leahtu@microsoft.com>

Author: mikehoffms

microsoft-edge/develop-web-microsoft-edge.md

@@ -34,7 +34,7 @@ See:
 ## Microsoft Edge DevTools
 <!-- ====================================================================== -->
 <!-- keep sync'd:
-* [Overview of DevTools](devtools-guide-chromium/overview.md) - intro section
+* [Overview of DevTools](devtools/overview.md) - intro section
 * [Microsoft Edge DevTools](../develop-web-microsoft-edge.md#microsoft-edge-devtools) in _Develop for the web with Microsoft Edge_
 -->
 

microsoft-edge/devtools/whats-new/2020/11/devtools.md

@@ -343,7 +343,7 @@ See also:
 <!-- ---------- -->
 ###### Display opener frame details for opened windows
 
-DevTools now organizes opened [Windows](https://developer.mozilla.org/docs/Web/API/Window#Constructors) under the relevant parent [frame](https://developer.mozilla.org/docs/Web/API/Window/frames).  For example, if the `top` frame opens a `Window` to `https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium`, then the `Window` appears under `top` in the **Frames** list.
+DevTools now organizes opened [Windows](https://developer.mozilla.org/docs/Web/API/Window#Constructors) under the relevant parent [frame](https://developer.mozilla.org/docs/Web/API/Window/frames).  For example, if the `top` frame opens a `Window` to `https://learn.microsoft.com/microsoft-edge/devtools`, then the `Window` appears under `top` in the **Frames** list.
 
 To reveal the frame that's responsible for opening another Window, and see that frame in the **Elements** tool:
 

microsoft-edge/devtools/whats-new/2025/06/devtools-138.md

@@ -0,0 +1,33 @@
+---
+title: What's New in DevTools (Microsoft Edge 138)
+description: Server response and redirection times in 'Document request latency' insight. Redirects in Summary of network requests. And more.  # key words before col 158
+author: MSEdgeTeam
+ms.author: msedgedevrel
+ms.topic: conceptual
+ms.service: microsoft-edge
+ms.subservice: devtools
+ms.date: 07/01/2025
+---
+# What's New in DevTools (Microsoft Edge 138)
+
+These are the latest features in the Stable release of Microsoft Edge DevTools.  Microsoft Edge 138 includes the following updates from the Chromium project:
+
+* [Performance panel improvements](https://developer.chrome.com/blog/new-in-devtools-138#perf)
+   * [Server response and redirection times in 'Document request latency' insight](https://developer.chrome.com/blog/new-in-devtools-138#doc-req-latency-times)
+   * [Redirects in Summary of network requests](https://developer.chrome.com/blog/new-in-devtools-138#redirects)
+   * [Reduced noise in the performance trace](https://developer.chrome.com/blog/new-in-devtools-138#perf-compile-disabled)
+   * [Deprecated 'Disable JavaScript samples'](https://developer.chrome.com/blog/new-in-devtools-138#disable-js-samples)
+* [Geolocation accuracy parameter in Sensors](https://developer.chrome.com/blog/new-in-devtools-138#geo-accuracy)
+* [Elements panel improvements](https://developer.chrome.com/blog/new-in-devtools-138#elements)
+   * [Debug complex CSS values easier](https://developer.chrome.com/blog/new-in-devtools-138#debug-css-values)
+   * [@function support in Elements > Styles](https://developer.chrome.com/blog/new-in-devtools-138#at-function)
+* [Network panel improvements](https://developer.chrome.com/blog/new-in-devtools-138#network)
+   * [has-request-header filter](https://developer.chrome.com/blog/new-in-devtools-138#has-request-header)
+   * [Direct Sockets in Isolated Web Apps](https://developer.chrome.com/blog/new-in-devtools-138#direct-sockets)
+
+
+<!-- ====================================================================== -->
+## 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/toc.yml

@@ -93,6 +93,10 @@
               href: ./devtools/whats-new/whats-new.md
               displayName: release notes, announcements
 # latest 10 What's New
+            - name: Microsoft Edge 138
+              href: ./devtools/whats-new/2025/06/devtools-138.md
+              displayName: What's New in DevTools (Microsoft Edge 138)  # page title
+
             - name: Microsoft Edge 137
               href: ./devtools/whats-new/2025/06/devtools-137.md
               displayName: What's New in DevTools (Microsoft Edge 137)  # page title
@@ -129,16 +133,16 @@
               href: ./devtools/whats-new/2024/09/devtools-129.md
               displayName: What's New in DevTools (Microsoft Edge 129)  # page title
 
-            - name: Microsoft Edge 128
-              href: ./devtools/whats-new/2024/08/devtools-128.md
-              displayName: What's New in DevTools (Microsoft Edge 128)  # page title
-
             # keep 10 items above
             - name: Archive
               items:
                 - name: What's New in DevTools archive
                   href: ./devtools/whats-new/whats-new-archive.md
 
+                - name: Microsoft Edge 128
+                  href: ./devtools/whats-new/2024/08/devtools-128.md
+                  displayName: What's New in DevTools (Microsoft Edge 128)  # page title
+
                 - name: Microsoft Edge 127
                   href: ./devtools/whats-new/2024/07/devtools-127.md
                   displayName: What's New in DevTools (Microsoft Edge 127)  # page title

microsoft-edge/web-platform/release-notes/139.md

@@ -59,9 +59,9 @@ 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-guide-chromium/whats-new/whats-new.md).
+See [What's New in Microsoft Edge DevTools](../../devtools/whats-new/whats-new.md).
 <!-- todo: when it exists in Aug 2025, use instead:
-See [What's New in DevTools (Microsoft Edge 139)](../../devtools-guide-chromium/whats-new/2025/08/devtools-139.md).
+See [What's New in DevTools (Microsoft Edge 139)](../../devtools/whats-new/2025/08/devtools-139.md).
 -->
 
 

microsoft-edge/web-platform/release-notes/index.md

@@ -18,6 +18,7 @@ To stay up-to-date and get the latest web platform features, download a preview
 ## See also
 
 * [Site compatibility-impacting changes coming to Microsoft Edge](../site-impacting-changes.md)
+* [Microsoft Edge release schedule](/deployedge/microsoft-edge-release-schedule)
 
 Microsoft Edge DevTools
 * [What's New in Microsoft Edge DevTools](../../devtools/whats-new/whats-new.md)