Brave suddenly not working with Yosemite 10.10.5

I’m in the same boat as practically everyone on this tread. Older mac that I’ve been thinking upgrading but has been working just fine for me and I was enjoying the Brave browser. Reading the posts I’m now realizing the ramifications of this and that I may have apparently have lost all my bookmarks in addition to the loss of the service. That Brave would do this without fair notification is unconscionable and clearly very bad for their P.R. I surely hope that something can be done about this and I’ll continue to follow the thread. Is there anyway we can make a collective complaint about this?