For the latest release news on the 2016 Goose Island Bourbon County Brand Stout variants, go here.

While the official release is still months away, details from this years’ release of Goose Island Beer Co.’s popular Bourbon County Brand Stout and six of the variants have come to light, including the possiblity of two different versions of Proprietor’s Bourbon County Brand Stout for the first time in the company’s history.

According to labels filed with the Alcohol and Tobacco Tax and Trade Bureau (TTB), there is the possibility of at least six different versions of the barrel-aged stout: Bourbon County Brand Coffee Stout (13 percent ABV) aged in bourbon barrels with Coasta Rican Flecha Roja coffee from Intelligentsia Coffee in Chicago added.

2016 Proprietor’s Bourbon County Brand Stout, aged in bourbon barrels with maple syrup, chipotle peppers and cacao nibs.

Bourbon County Brand Maple Rye Stout (13 percent ABV) aged in both rye whiskey and bourbon barrels with maple syrup, chipotle peppers and cacao nibs.

A second possible version of 2016 Proprietor’s Bourbon County Brand Stout, which will be a stout aged in Scotch whisky barrels.

The 2016 Bourbon County Brand Barleywine, will be aged in bourbon barrels.

Finally, 2016 Bourbon County Brand Stout is a stout aged in bourbon barrels. According to the labels, all seven versions of the stout so far will be packaged in 500ml bottles.

Last year brought two major changes compared to years past: there were six different versions of the popular beer as opposed to just five, and all versions of the beer were released exclusively in 500ml bottles instead of the 12-ounce and 22-ounce bottles that have been the standard for years.

Earlier this year the Chicago-based brewery offered refunds to people who purchased bottles of 2015 Bourbon County Brand Coffee Stout and Bourbon County Brand Barleywine after the beers “developed flavors that are not consistent with our expectation of how these beers should taste.” In addition, the brewery put out a press release in May indicating it was testing both 2015 Bourbon County Bourbon County Brand Stout and 2015 Proprietor’s Stout for the same issues, although no refunds for those two beers have been offered as of yet.

While no official release details on the 2016 versions have been announced, in the past all but one of the incarnations of the Bourbon County Brand Stout have been available nationwide starting on the day after Thanksgiving, which this year falls on Nov. 25. The exception is Proprietor’s Bourbon County Brand Stout, which has always been exclusively available in Chicago, Ill. since its debut in 2013. The brewery typically hosts a soft launch prior to the nationwide release.

An email sent to the brewery for additional information was not immediately returned.

Update (July 18, 2016) — This post was updated to include details on the Bourbon County Brand Maple Rye Stout and Bourbon County Brand Coffee Stout. It was originally published on June 26, 2016.

Update (July 20, 2016) — This post was updated to include bottle labels for Bourbon County Brand Maple Rye Stout.

Update (Aug. 28, 2016) — This post was updated to include bottle labels for Bourbon County Brand Coffee Stout and a second 2016 Proprietor’s Bourbon County Brand Stout.