Version 4.00.007 (maintenance release)

OAK 4, a major upgrade to the product, was released on 8 April 2009.

The latest version of OAK, version 4.00.007, released on 10 August 2009, implements various bugfixes and performance upgrades, and amendments to the help (offline, online and printable PDF).

Users of prior versions of OAK 4.00 will be automatically offered the chance to install the new version by OAK's automatic updating feature.

There is a detailed version history of OAK in the online documentation.