According to uncrate.com the good folks out west are releasing a bunch of Limited Edition brews, 30 would be my guess, conjured up with a number of Craft Beer Innovators from around country.
Currently there are four they are telling us about: Fritz and Ken's Ale, Charlie, Ken and Fred's Lager, Jack and Ken's Ale, and Oak Aged Ale. They are bottled in the larger form factor bottles with the cork and cage seal that we all enjoy from Brooklyn Brewery for the Local 1 and Local 2 Brews. The rest are slated to be unleashed on the public over the course of the year so be on your toes. Be on the lookout for these at a store near you, pick one up or you'll ruin Sierra Nevada's Birthday. No one likes a crying Brewery.