diff --git a/CHANGELOG.md b/CHANGELOG.md
index b55485ee09..9434836ca4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## vNext (TBD)
 
+### Breaking Changes
+* Removed all functionality related to App Services/Atlas Device Sync.
+
 ### Enhancements
 * None
 
@@ -10,7 +13,7 @@
 * Realm Studio: 15.0.0 or later.
 
 ### Internal
-* Using Core x.y.z.
+* Using Core 20.0.1.
 
 ## 12.4.0 (2024-08-25)
 
diff --git a/wrappers/realm-core b/wrappers/realm-core
index f98720a07e..d8a6840028 160000
--- a/wrappers/realm-core
+++ b/wrappers/realm-core
@@ -1 +1 @@
-Subproject commit f98720a07e6150c41c953e1937108225550ba155
+Subproject commit d8a68400288245c01be3dcb0ca3bcd4922fee680