The Scheme Advisory Board (SAB) provide an update bulletin four times per year, usually following a SAB meeting.
These bulletins are sent directly to employers, pension funds and to trade union members, but are also available to download below as PDF files:
2017October 2017 May 2017
2016September 2016 June 2016 March 2016
2015December 2015 September 2015 June 2015