The latest version of the Unified Patent Court (UPC) Rules of Procedure has been published on the News section of the UPC Preparatory Committee website. Although the document is entitled the 18th draft of 19 Oct 2015, the text has been revised by the Preparatory Committee and the attachment is dated 15 March 2017.
Although this draft is the version that is set to be adopted by the Administrative Committee during the Provisional Application Phase (meeting date yet to be confirmed), it is still subject to potential (though hopefully, minimal) change and subject to the scrutiny of the European Commission to ensure compatibility with European Union law.