Today is the day that Stampin' Up! posts the retirement list of stamps and accessories. These items will only be available through the end of June, so if you see your favorites, grab them before they're gone! The stamp sets will all be available through the end of the month, but the accessories list is while supplies last, so don't hem and haw on buying your favorite brads or ribbons!
Don't panic - all that 12 x 12 card stock is not going away! It's just being reconfigured. Whew! I'm guessing this means that it will not be sold in packs of half textured/half smooth anymore. We'll know soon enough - the new catalog goes live on July 1st!
Here are the lists in PDF form. They also show which items are being reconfigured rather than retired completely.