diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48ac1e8..f1f4f49 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,15 +3,15 @@ ObjectBox C and C++ API Changelog
 
 0.21.0 (2024-02-13)
 -------------------
-* New Store type: In-Memory DB (official announcement)
+* In-memory databases (prefix the directory option with "memory:")
 
-### Sync:
+### Sync
 
-* New client/server query statistics API 
+* Use "ObjectBox Admin" users as Sync users (permission-based) 
+* New client/server statistics API
 * New server API to enable authenticators
 * Sync server: support for sync permissions, blocks client updates with no write permission
 * Added sync-level login/write permissions for Admin Users DB and Web-UI  
-* New authenticator "ObjectBox Admin" with support for authorization
 * New client API for username/password credentials
 * New client-side error listener API; 
   initially reports "receive-only" downgrade due to no write permissions.
@@ -23,7 +23,7 @@ ObjectBox C and C++ API Changelog
 * Tree API: fix for meta IDs vs. IDs
 * Various internal improvements
 
-Sync:
+### Sync
 
 * Sync clients may now supply multiple URLs; for each connection attempt a random one is chosen.
   This allows for client-side load balancing and failover with an ObjectBox Sync cluster.
diff --git a/doxygen/Changelog.md b/doxygen/Changelog.md
index f071405..158bc58 100644
--- a/doxygen/Changelog.md
+++ b/doxygen/Changelog.md
@@ -5,15 +5,15 @@ ObjectBox C and C++ API Changelog
 
 0.21.0 (2024-02-13)
 -------------------
-* New Store type: In-Memory DB (official announcement)
+* In-memory databases (prefix the directory option with "memory:")
 
-### Sync:
+### Sync
 
-* New client/server query statistics API 
+* Use "ObjectBox Admin" users as Sync users (permission-based) 
+* New client/server statistics API
 * New server API to enable authenticators
 * Sync server: support for sync permissions, blocks client updates with no write permission
 * Added sync-level login/write permissions for Admin Users DB and Web-UI  
-* New authenticator "ObjectBox Admin" with support for authorization
 * New client API for username/password credentials
 * New client-side error listener API; 
   initially reports "receive-only" downgrade due to no write permissions.
@@ -25,7 +25,7 @@ ObjectBox C and C++ API Changelog
 * Tree API: fix for meta IDs vs. IDs
 * Various internal improvements
 
-Sync:
+### Sync
 
 * Sync clients may now supply multiple URLs; for each connection attempt a random one is chosen.
   This allows for client-side load balancing and failover with an ObjectBox Sync cluster.