diff --git a/release_build_files/readme.md b/release_build_files/readme.md
index e2f4efe3d4..9f75cf888a 100644
--- a/release_build_files/readme.md
+++ b/release_build_files/readme.md
@@ -615,6 +615,9 @@ code.
 ## Release Notes
 ### Upcoming
 - Changes
+    - [Firestore] Security Update: Removed compromised eMudhra intermediate CA
+      root certificates from embedded trust store.
+      ([#16930](https://github.com/firebase/firebase-ios-sdk/pull/16930))
     - Auth (Desktop): Fixed an issue where refreshing or fetching an ID token
       (`GetToken`) or linking an email/password credential to an anonymous
       account failed when using the Auth Emulator, because `SecureTokenRequest`
@@ -630,6 +633,13 @@ code.
     - General (MacOS Desktop): Fix for linker issue on XCode 27. (#1920)
     - Auth: **Breaking Change:** Fixed spelling in `AuthError` enum values (`kAuthErrorWebStorateUnsupported` -> `kAuthErrorWebStorageUnsupported` and `kAuthErrorFederatedProviderAreadyInUse` -> `kAuthErrorFederatedProviderAlreadyInUse`).
 
+### 13.13.1
+- Changes
+    - General (iOS): Update to Firebase CocoaPods version 12.19.3.
+    - [Firestore] Security Update: Removed compromised eMudhra intermediate CA
+      root certificates from embedded trust store.
+      ([#16930](https://github.com/firebase/firebase-ios-sdk/pull/16930))
+
 ### 13.13.0
 - Changes
     - General (Android): Update to Firebase Android BoM version 34.19.0.