Pokemon Quetzal Alpha 0.6.9 is a later version of the Pokemon Quetzal ROM hack. Building upon version 0.6.4, it likely incorporates bug fixes, added content, refined gameplay mechanics, and improvements to overall stability.  Being an alpha version, it may still contain unfinished elements and bugs, but is expected to be closer to a complete state than earlier versions.  The same lack of official information often applies to this version as it is a fan-made project, and specifics on the development team and their motivations would not be readily available.

Pokemon Quetzal Alpha 0.6.9

Pokemon Platinum Red & Blue Versions - Alpha 1.3