I think they're still good. I keep berries and other fruit in the freezer for several months at least, and they're fine.

I'm happy with the quality of blackberry, raspberry, boysenberry in my manual defrost freezer for 2 yrs +. If in a self defrosting freezer for 6 or more months they should still be fine. If they appear a little freezer burned from self defrost cycles its a matter of taste, not safety, and a squeeze of fresh lemon juice will often brighten up the flavor for pies, desserts.

Thanks for the replies. I am glad to have boysenberries in February!