This was the last Labour Party leadership election which used the trade union block vote; the system was reformed under Smith's leadership to a one member, one vote system which was in place for the 1994 leadership election held two years later when Smith died suddenly of a heart attack.
The Labour Party leadership elections were changed from a block vote by trade unions to a one-member, one-vote system under Smith's leadership; this change occurred in the 1994 election following Smith's unexpected passing.