Complex sentence: The official "Linley's Dungeon Crawl" has been completely abandoned, it's last versions were 4.0.0 beta 26, from 24 March 2003 and a later alpha release, version 4.1.0, dates from July 2005.
Split into simpler sentences: The official "Linley's Dungeon Crawl" has been completely abandoned. Its last versions were 4.0.0 beta 26, from 24 March 2003 and a later alpha release, version 4.1.0, dates from July 2005.