For the 13th year in a row, Founders Brewing Co. will be releasing KBS, one of its most popular stouts.

As in years past, Kentucky Breakfast Stout is 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. The stout was first released in 2004.

However, there have been some changes, most notably that Kentucky Breakfast Stout is now part of Founder’s new Barrel Aged Series, which also includes the recently announced 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 is scheduled to be released during KBS Week in Michigan from March 6-11, while retailers across the brewery’s distribution network will be getting the stout on April 1.

There will be two options for purchasing KBS bottles during KBS Week, with tickets going on sale on Feb. 18:

Regular Ticket ($132 plus ticketing fees):

4 four-packs of 12-ounce bottles

2 750ml bottles

Junior Ticket ($84 plus ticketing fees):

2 four-packs of 12-ounce bottles

2 750ml bottles

Update (Nov. 10, 2016) — This post was updated to include details on the release date and packaging information. It was originally published on Nov. 10, 2016.

Update (Nov. 18, 2016) — This post was updated to include 12-ounce bottle labels.

Update (Feb. 9, 2017) — This post was updated to include information about KBS Week.