The software comparison page,
http://www.phpbb.com/about/features/compare.php
currently lists Simple Machine Forums latest release as 1.1.4. This is incorrect.

The latest non-beta version is 1.1.5, released on April 30th, 2008.
http://www.simplemachines.org/community/index.php?topic=236816.0

You may need to update the information in their column accordingly.