It is April Fools’ Day, but for fans of Founders Brewing Co.’s KBS, today is no joke.

That is because for the 13th year in a row, the Grand Rapids, Mich.-based brewery will be releasing 2017 Kentucky Breakfast Stout, an imperial breakfast stout that has been brewed with “a massive amount” of both coffee and chocolate before being aged in Kentucky bourbon barrels for an entire year in old gypsum mines 85 feet under the ground at a temperature of 38-40 degrees fahrenheit.

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Kentucky Breakfast Stout is now part of Founder’s new Barrel Aged Series, which also includes the recently released Frootwood, a cherry ale aged in oak barrels that “have held both bourbon and maple syrup” as well as the return of Doom, a 10 percent ABV imperial IPA.

As a result, the stout will be packaged in both four-packs of 12-ounce bottles as well as 750ml bottles and was released during KBS Week that took place in Michigan from March 6-11, while retailers across the brewery’s distribution network will begin releasing the stout today.