diff --git a/examples/toy-chat/src/main.rs b/examples/toy-chat/src/main.rs
index 53eb015..87d426b 100644
--- a/examples/toy-chat/src/main.rs
+++ b/examples/toy-chat/src/main.rs
@@ -201,7 +201,7 @@ fn run_app<B: Backend>(
                             1,
                             Utc::now().timestamp_nanos() as usize,
                             meta,
-                            false
+                            false,
                         );
                         if let Err(e) =
                             app.node_handle
diff --git a/waku-bindings/src/general/mod.rs b/waku-bindings/src/general/mod.rs
index 03b801f..5e7186d 100644
--- a/waku-bindings/src/general/mod.rs
+++ b/waku-bindings/src/general/mod.rs
@@ -104,7 +104,7 @@ impl WakuMessage {
         version: WakuMessageVersion,
         timestamp: usize,
         meta: META,
-        ephemeral: bool
+        ephemeral: bool,
     ) -> Self {
         let payload = payload.as_ref().to_vec();
         let meta = meta.as_ref().to_vec();
diff --git a/waku-bindings/src/node/mod.rs b/waku-bindings/src/node/mod.rs
index 24e9d38..a2ac5d5 100644
--- a/waku-bindings/src/node/mod.rs
+++ b/waku-bindings/src/node/mod.rs
@@ -212,6 +212,11 @@ impl WakuNodeHandle<Running> {
         relay::waku_relay_unsubscribe(pubsub_topic)
     }
 
+    /// Returns the list of pubsub topics the node is subscribed to in Waku Relay
+    pub fn relay_topics(&self) -> Result<Vec<String>> {
+        relay::waku_relay_topics()
+    }
+
     /// Retrieves historical messages on specific content topics. This method may be called with [`PagingOptions`](`crate::general::PagingOptions`),
     /// to retrieve historical messages on a per-page basis. If the request included [`PagingOptions`](`crate::general::PagingOptions`),
     /// the node must return messages on a per-page basis and include [`PagingOptions`](`crate::general::PagingOptions`) in the response.
diff --git a/waku-bindings/src/node/relay.rs b/waku-bindings/src/node/relay.rs
index 4c0c8a4..1d64a59 100644
--- a/waku-bindings/src/node/relay.rs
+++ b/waku-bindings/src/node/relay.rs
@@ -97,6 +97,13 @@ pub fn waku_dafault_pubsub_topic() -> WakuPubSubTopic {
     result
 }
 
+/// Get the list of subscribed pubsub topics in Waku Relay.
+/// As per the [specification](https://rfc.vac.dev/spec/36/#extern-char-waku_relay_topics)
+pub fn waku_relay_topics() -> Result<Vec<String>> {
+    let result_ptr = unsafe { waku_sys::waku_relay_topics() };
+    decode_and_free_response(result_ptr)
+}
+
 /// Publish a message using Waku Relay
 /// As per the [specification](https://rfc.vac.dev/spec/36/#extern-char-waku_relay_publishchar-messagejson-char-pubsubtopic-int-timeoutms)
 pub fn waku_relay_publish_message(
diff --git a/waku-bindings/tests/node.rs b/waku-bindings/tests/node.rs
index dc0c1a8..b50cf38 100644
--- a/waku-bindings/tests/node.rs
+++ b/waku-bindings/tests/node.rs
@@ -10,9 +10,9 @@ use std::{collections::HashSet, str::from_utf8};
 use tokio::sync::mpsc::{self, Sender};
 use tokio::time;
 use waku_bindings::{
-    waku_new, waku_set_event_callback, Encoding, Event, GossipSubParams, Key, MessageId,
-    ProtocolId, Running, WakuContentTopic, WakuLogLevel, WakuMessage, WakuNodeConfig,
-    WakuNodeHandle,
+    waku_dafault_pubsub_topic, waku_new, waku_set_event_callback, Encoding, Event, GossipSubParams,
+    Key, MessageId, ProtocolId, Running, WakuContentTopic, WakuLogLevel, WakuMessage,
+    WakuNodeConfig, WakuNodeHandle, WakuPubSubTopic,
 };
 
 const ECHO_TIMEOUT: u64 = 10;
@@ -120,7 +120,7 @@ async fn test_echo_messages(
             .try_into()
             .unwrap(),
         Vec::new(),
-        false
+        false,
     );
 
     let (tx, mut rx) = mpsc::channel(1);
@@ -179,6 +179,13 @@ async fn discv5_echo() -> Result<(), String> {
     node.relay_subscribe(None)?;
     let content_topic = WakuContentTopic::new("toychat", 2, "huilong", Encoding::Proto);
 
+    let topics = node.relay_topics()?;
+    let default_topic = waku_dafault_pubsub_topic();
+    assert!(topics.len() == 1);
+    let topic: WakuPubSubTopic = topics[0].parse().unwrap();
+
+    assert!(topic == default_topic);
+
     let sleep = time::sleep(Duration::from_secs(ECHO_TIMEOUT));
     tokio::pin!(sleep);
 
@@ -283,6 +290,7 @@ fn gossipsub_config() -> Result<(), String> {
         max_ihave_length: Some(32),
         max_ihave_messages: Some(8),
         iwant_followup_time_seconds: Some(120),
+        seen_messages_ttl_seconds: Some(120),
     };
 
     let config = WakuNodeConfig {
diff --git a/waku-sys/vendor b/waku-sys/vendor
index 3c4a863..d9a12bf 160000
--- a/waku-sys/vendor
+++ b/waku-sys/vendor
@@ -1 +1 @@
-Subproject commit 3c4a863cb7c898a6c551a51288a6badf809fd6f5
+Subproject commit d9a12bf079a8bbb59ab1df591062b9bb91d3804d