OpenTTD 0.7.5 Released, this fixes the NewGRF cargo payment was that broken in 0.7.4 and a major bug that can crash servers remotely (CVE-2009-4007).

Secondly OpenTTD 1.0.0-beta1 is also available, with this version you can run OpenTTD without the original Transport Tycoon Deluxe data files.