Create LTS 2.492.3 changelog and upgrade guide (#7992)

Create 2.492.3 changelog and upgrade guide

Author: kmartens27

content/_data/changelogs/lts.yml

@@ -12592,6 +12592,35 @@
     message: |-
       Fix occasional failures to write files to the Jenkins home directory on Windows servers due to virus scanners (regression in 2.491).
 
+- version: "2.492.3"
+  date: 2025-04-02
+  changes:
+  - type: bug
+    category: bug
+    pull: 10309
+    issue: 75321
+    authors:
+      - Vlatombe
+    pr_title: "[JENKINS-75321] Clarify the message displayed when loading the content of the build history widget"
+    message: |-
+      Clarify the displayed message while the build history widget initializes.
+  - type: bug
+    category: bug
+    references:
+      - pull: 10344
+      - issue: 75278
+      - url: https://github.com/jetty/jetty.project/releases/jetty-12.0.15
+        title: Jetty 12.0.15 changelog
+      - url: https://github.com/jetty/jetty.project/releases/jetty-12.0.16
+        title: Jetty 12.0.16 changelog
+      - url: https://github.com/jetty/jetty.project/releases/jetty-12.0.17
+        title: Jetty 12.0.17 changelog
+    authors:
+      - olamy
+    pr_title: "[JENKINS-75278] User pages for users with slash in the user name fail after upgrading to 2.479.1"
+    message: |-
+      Upgrade to Jetty 12.0.17 to fix User pages for users with a <code>\</code> in their username.
+
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content/_data/upgrades/2-492-3.adoc

@@ -0,0 +1 @@
+No notable changes requiring upgrade notes.