[stable] Fix 3.10.3 CHANGELOG.md

Move 61981 cherry pick into 3.10.4 section because it landed after
3.10.3 was tagged and released.

R=athom@google.com

Cherry-pick: none
Change-Id: I1dd72cafda48877477f8da2978e2a78897dc2cfb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/466060
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24c539e..0fd6ac7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 3.10.4
+
+This is a patch release that:
+
+- Fixes an issue with `dart run` not working and simply exiting with
+  `Process::Exec - (null)` under GitBash on Windows.
+  (issue [dart-lang/sdk#61981])
+
+[dart-lang/sdk#61981]: https://github.com/dart-lang/sdk/issues/61981
+
 ## 3.10.3
 
 **Released on:** 2025-12-02
@@ -16,9 +26,6 @@
 - Fixes an issue with the analyzer not emitting an error when using a dot
   shorthand with type arguments on a factory constructor in an abstract class.
   (issue [dart-lang/sdk#61978])
-- Fixes an issue with `dart run` not working and simply exiting with
-  `Process::Exec - (null)` under GitBash on Windows.
-  (issue [dart-lang/sdk#61981])
 
 [Dart-Code/Dart-Code#61978]: https://github.com/Dart-Code/Dart-Code/issues/5810
 [dart-lang/sdk#61996]: https://github.com/dart-lang/sdk/issues/61996
@@ -26,7 +33,6 @@
 [flutter/flutter#178740]: https://github.com/flutter/flutter/issues/178740
 [dart-lang/sdk#62136]: https://github.com/dart-lang/sdk/issues/62136
 [dart-lang/sdk#61978]: https://github.com/dart-lang/sdk/issues/61978
-[dart-lang/sdk#61981]: https://github.com/dart-lang/sdk/issues/61981
 
 ## 3.10.2