Update CHANGELOG.md for AppOpenAd dependency.

Mobile Ads Developer Relations · copybara-github · commit 9090c5cfffd6 · 2025-08-25T09:32:06.000-07:00
PiperOrigin-RevId: 799152565
diff --git a/ChangeLog.txt b/ChangeLog.txt
@@ -5,6 +5,7 @@ Version 10.4.2
 **************
 
 - Fix issue with macros in `BuildPreProcessor` for Unity Editor 2021.
+- Added `androidx.lifecycle` dependency required for AppOpenAd.
 
 Built and tested with:
 
