In the words of Strymon:

The pedal that revolutionized compact reverb pedals has evolved. Plug into blueSky for the most lush, majestic reverbs imaginable. Transform a single note or chord into vast sonic atmospheres with impossibly gorgeous, incredibly long reverb tails. Hear the inspiring splash of an upgraded spring algorithm dripping with vintage vibe. Lose track of time and space as you interact with deep and expansive new Shimmer sounds never heard anywhere before.