Cobalt 9/10 and working with Joomla 4

Hi,

I have read following post in mintjoomla forum:

http://www.mintjoomla.com/blog/item/8793-migration-to-joomla-4.html

In this post, you are mentioning to Cobal 9 & 10 but I couldn't find any link for this version in your site. Why you didn't continue this project? It was wonderful for building form based systems