# v13.0.0 What's new: --- - Adds a new `SocketManager` class that multiplexes multiple namespaces through a single engine. - Adds `.sentPing` and `.gotPong` client events for tracking ping/pongs. - watchOS support. Important API changes --- - Many properties that were previously on `SocketIOClient` have been moved to the `SocketManager`. - `SocketIOClientOption.nsp` has been removed. Use `SocketManager.socket(forNamespace:)` to create/get a socket attached to a specific namespace. - Adds `.sentPing` and `.gotPong` client events for tracking ping/pongs. - Makes the framework a single target. - Updates Starscream to 3.0