On Nov, 1 Citrix released Receiver 2.5.2 for HTML5 and Receiver 2.5.2 for Chrome. Additionally, there are new SDKs available here: Receiver 2.5.2 for HTML SDK and Receiver for Chrome 2.5.2 SDK.
Update: Beginning August 2018, Citrix Receiver will be replaced by Citrix Workspace app. While you can still download older versions of Citrix Receiver, new features and enhancements will be released for Citrix Workspace app only.