diff --git a/differences.md b/differences.md
index 33a6453..ffa6cb6 100644
--- a/differences.md
+++ b/differences.md
@@ -68,7 +68,7 @@
 | JETSTREAM (internal) | Y | N | |
 | ACCOUNT (internal) | Y | N | |
 | WebSocket clients | Y | Y | Custom frame parser, permessage-deflate compression, origin checking, cookie auth |
-| MQTT clients | Y | N | |
+| MQTT clients | Y | Partial | JWT connection-type constants + config parsing; no MQTT transport yet |
 
 ### Client Features
 | Feature | Go | .NET | Notes |
@@ -204,7 +204,7 @@ Go implements a sophisticated slow consumer detection system:
 | Username/password | Y | Y | |
 | Token | Y | Y | |
 | NKeys (Ed25519) | Y | Y | .NET has framework but integration is basic |
-| JWT validation | Y | Y | `NatsJwt` decode/verify, `JwtAuthenticator` with account resolution + revocation |
+| JWT validation | Y | Y | `NatsJwt` decode/verify, `JwtAuthenticator` with account resolution + revocation + `allowed_connection_types` enforcement |
 | Bcrypt password hashing | Y | Y | .NET supports bcrypt (`$2*` prefix) with constant-time fallback |
 | TLS certificate mapping | Y | Y | X500DistinguishedName with full DN match and CN fallback |
 | Custom auth interface | Y | N | |
@@ -268,7 +268,7 @@ Go implements a sophisticated slow consumer detection system:
 - ~~Tags/metadata~~ — `Tags` dictionary implemented in `NatsOptions`
 - ~~OCSP configuration~~ — `OcspConfig` with 4 modes (Auto/Always/Must/Never), peer verification, and stapling
 - ~~WebSocket options~~ — `WebSocketOptions` with port, compression, origin checking, cookie auth, custom headers
-- MQTT options
+- ~~MQTT options~~ — `mqtt {}` config block parsed with all Go `MQTTOpts` fields; no listener yet
 - ~~Operator mode / account resolver~~ — `JwtAuthenticator` + `IAccountResolver` + `MemAccountResolver` with trusted keys
 
 ---
@@ -317,7 +317,7 @@ Go implements a sophisticated slow consumer detection system:
 | Subscription detail mode | Y | N | |
 | TLS peer certificate info | Y | N | |
 | JWT/IssuerKey/Tags fields | Y | N | |
-| MQTT client ID filtering | Y | N | |
+| MQTT client ID filtering | Y | Y | `mqtt_client` query param filters open and closed connections |
 | Proxy info | Y | N | |
 
 ---