The latest edition of the Brooklyn Black Ops, a highly collected beer, is a collaboration between the New York brewery and Four Roses Distillery.

The limited-release beer aged in Four Roses Small Batch Bourbon barrels, selected by Four Roses Master Distiller Brent Elliott.

A Russian Imperial Stout, this vintage of Brooklyn Black Ops is 12.4% ABV. It raises a fluffy dark brown head, the company reports, and combines chocolate and coffee notes with an underpinning of vanilla-like oak. In addition to the barrel aging, the brew was re-fermented with Champagne yeast.

The 2020 Brooklyn Black Ops hits retail shelves later this month.

“The partnership began with a long-time friendship between Brooklyn Brewery Brewmaster, Garrett Oliver, and Four Roses COO and Director of Operations, Ryan Ashley, and the resulting beer is just as rich as the relationship in which it began,” says Elliott. “Four Roses Small Batch provides some very complex flavors and unique characteristics, so aging this iteration of Black Ops in the used barrels produced a beer with a hint of mellow bourbon character and a very smooth finish.”

The 2020 Brooklyn Black Ops will be available in limited quantities wherever Brooklyn Brewery is available, beginning in late November. Approximately 2,000 cases of cork-topped, 750-ml. bottles will roll out in the U.S. with a suggested retail price of $24.99 each.

“The combination of the legendary Brooklyn Black Ops and the equally respected Four Roses Small Batch Bourbon is a situation where the drinks are each ennobled by the other,” says Brooklyn Brewery Brewmaster Garrett Oliver. “And that’s a perfect partnership.”