Facebook block graph api access to closed groups?

Question

I'm developing a program that read posts from groups by using graph.facebook.com/v2.3/[group_id]/feed

I've heard that facebook is about to block the access for developers to closed groups. but I can't find any formal mention of this.

Anyone know if it's true?

Thanks

Answer 1

Update:

user_groups is gone, now we need to use user_managed_groups instead of user_groups, and the problem with this permission is, it only allows you access to the groups which are open, or the one you are admin/developer/tester of. No closed groups are allowed.