diff --git a/package.json b/package.json
index 2073e16..90a0871 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xtr-dev/rondevu-client",
-  "version": "0.3.4",
+  "version": "0.3.5",
   "description": "TypeScript client for Rondevu peer signaling and discovery server",
   "type": "module",
   "main": "dist/index.js",
diff --git a/src/client.ts b/src/client.ts
index 27b50a1..7ab4efc 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -186,4 +186,23 @@ export class RondevuAPI {
       method: 'GET',
     });
   }
+
+  /**
+   * Ends a session by deleting the offer from the server
+   *
+   * @param code - The offer code
+   * @returns Success confirmation
+   *
+   * @example
+   * ```typescript
+   * const api = new RondevuAPI({ baseUrl: 'https://example.com' });
+   * await api.leave('my-offer-code');
+   * ```
+   */
+  async leave(code: string): Promise<{ success: boolean }> {
+    return this.request<{ success: boolean }>('/leave', {
+      method: 'POST',
+      body: JSON.stringify({ code }),
+    });
+  }
 }
diff --git a/src/connection.ts b/src/connection.ts
index 2afe836..32f431c 100644
--- a/src/connection.ts
+++ b/src/connection.ts
@@ -20,6 +20,7 @@ export class RondevuConnection extends EventEmitter {
   private connectionTimer?: ReturnType<typeof setTimeout>;
   private isPolling: boolean = false;
   private isClosed: boolean = false;
+  private hasConnected: boolean = false;
   private wrtc?: WebRTCPolyfill;
   private RTCIceCandidate: typeof RTCIceCandidate;
 
@@ -94,9 +95,12 @@ export class RondevuConnection extends EventEmitter {
 
     switch (state) {
       case 'connected':
-        this.clearConnectionTimeout();
-        this.stopPolling();
-        this.emit('connect');
+        if (!this.hasConnected) {
+          this.hasConnected = true;
+          this.clearConnectionTimeout();
+          this.stopPolling();
+          this.emit('connect');
+        }
         break;
 
       case 'disconnected':
@@ -283,6 +287,20 @@ export class RondevuConnection extends EventEmitter {
     }
   }
 
+  /**
+   * Leave the session by deleting the offer on the server and closing the connection
+   * This ends the session for all connected peers
+   */
+  async leave(): Promise<void> {
+    try {
+      await this.client.leave(this.id);
+    } catch (err) {
+      // Ignore errors - session might already be expired
+      console.debug('Leave error (ignored):', err);
+    }
+    this.close();
+  }
+
   /**
    * Close the connection and cleanup resources
    */
diff --git a/src/rondevu.ts b/src/rondevu.ts
index 80eb9c7..63bc43c 100644
--- a/src/rondevu.ts
+++ b/src/rondevu.ts
@@ -62,7 +62,7 @@ export class Rondevu {
   private async checkServerVersion(): Promise<void> {
     try {
       const { version: serverVersion } = await this.api.health();
-      const clientVersion = '0.3.4'; // Should match package.json
+      const clientVersion = '0.3.5'; // Should match package.json
 
       if (!this.isVersionCompatible(clientVersion, serverVersion)) {
         console.warn(