Yafaray exporter for Blender 2.63:

The exporter is in an experimental stage, so use it for testing purposes only.
For the latest exporter updates check:

https://github.com/YafaRay/Blender-Exporter

and for the latest Yafaray builds (including exporter files too) 
check megasofts builds on graphicall.org:

http://www.graphicall.org/megasoft78

or look into this forum post for other platform builds:

http://www.yafaray.org/community/forum/viewtopic.php?f=16&t=3520

Download and extract the exporter files and folders to the 'Blender/2.63/scripts/addons/yafaray' directory.

We need to test it, please post bugreports and feature requests here:
http://www.yafaray.org/development/bugtracker/yafaray

Thank you.