The boundaries of the 73 constituencies last changed as of the 2011 Scottish Parliament election, as did the configuration of the electoral regions used to elect "list" members of the Scottish Parliament.[72] These revisions were the outcome of the First Periodical Review of the Scottish Parliament's constituencies and regions conducted by the Boundary Commission for Scotland; the Review was announced on 3 July 2007 and the Commission published its final report on 26 May 2010.