chore: Update CHANGELOG.md for #15493 (#15534)

ncooke3 · web-flow · commit 58abf8e5293b · 2025-11-24T14:51:40.000-05:00
diff --git a/FirebaseAuth/CHANGELOG.md b/FirebaseAuth/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Unreleased
+- [fixed] Add a mechanism to prevent concurrent token refreshes. (#15474)
+
 # 12.2.0
 - [added] Added TOTP support for macOS.
 
