The latest release includes bug fixes, and comes bundled with Dhewm 3 1.5.1.
Rivensin build 0.9.82 includes fixes related to player animations, material files, enables weapon shadows, and fixes the shield not working properly in vanilla maps. This build comes bundled with Dhewm 3 1.5.1 32-bit. This update includes in the missing and now improved editing tools, Carmack's reverse stencil shadows, and more. check dhewm3.org for the full release notes and linux builds.
It is highly advised to do a fresh install of dhewm 3 and the mod after downloading.