Jack Daniel’s Single Barrel Heritage Barrel Tennessee Whiskey is a permanent line extension that was announced in August 2025, first reaching United States markets and expanding into international markets thereafter. The release follows limited edition bottlings of the whiskey in 2018 and 2019. For the initial release, a total of 400 barrels were dumped. However, barrels will be dumped on an ongoing basis, with the intention of making the product readily available.