September marks the start of whiskey's busy season, when the annual release calendar shifts into high gear. A handful of autumn's most collectible unicorn bottles have already begun hitting shelves—though in the world of allocated spirits, this doesn’t necessarily mean they are going to be easy to find. Other releases remain closely guarded secrets, prompting us to piece together the lineup through state control board listings, TTB filings, and early distillery sneak peeks. Ranging from 141-proof Texas hazmat bourbon to an ancient Egyptian cask finishe to extreme Islay peat, here is your insider intel on the season’s most anticipated drops.

Old Forester Birthday Bourbon

Released in honor of founder George Garvin Brown’s birthday, Old Forester’s 2026 Birthday Bourbon arrives as an 11-year expression bottled at 97 proof. Selected from Warehouse B by master distiller emeritus Chris Morris and assistant master distiller Caleb Trigo, an extended six-day stay in the cistern room over a holiday period lowered the entry proof to 124.4, shaping a profile packed with zesty ginger, rich caramel, and bright cherry notes. While the distillery’s August sweepstakes drawing has concluded, limited retail allocations roll out nationwide this month.

Four Roses Limited Edition Small Batch Bourbon

Arriving October 10, the 19th edition of Four Roses’ annual flagship blend combines four batches across three recipes: 14-year OBSK, 15-year OESV, and OESK aged for both 14 and 23 years. Non-chill filtered at barrel-strength of 109.2 proof, early reviews are already touting this caramel apple- and baking-spice-forward pour as a prime “bottle of the year” contender. Four Roses also recently debuted its honey cask finish (SRP $55, 375ml), the second in a new experimental series that also included a mizunara-finished release over the summer.

Buffalo Trace Antique Collection

Few allocations drive the fall chase quite like the Buffalo Trace Antique Collection, which is made up of George T. Stagg Bourbon, William Larue Weller Bourbon, Eagle Rare 17 Bourbon, Thomas H. Handy Sazerac Rye, and Sazerac Rye 18. Unlike brands that include specific release years as part of their label artwork and must re-file annually with the TTB, Buffalo Trace relies on generic, evergreen label approvals, which excludes updated age and proof specs from public registry searches. Expect more details in early November ahead of retail rollouts later in the fall.

Pappy Van Winkle Collection

The undisputed crown jewel of autumn bourbon season, Buffalo Trace and Old Rip Van Winkle Distillery just announced the 2026 Pappy Van Winkle collection. Bottled between 90.4 and 107 proof, the six-bottle lineup spans Old Rip Van Winkle 10-Year (pecan, ripe cherry, seasoned oak), Special Reserve Lot B 12-Year (dried mango, spiced peach, cocoa), Family Reserve Rye 13-Year (chestnut, white pepper, dry oak), and the 15-Year (caramel corn, leather, warm spice), 20-Year (citrus zest, sherry, dried fruit), and 23-Year Family Reserve (ripe apple, dark tobacco, subtle chocolate) bourbons. Finding any of these bottles anywhere near retail remains the ultimate fall pursuit. 

Bardstown Bourbon Company Annual Releases

Bardstown Bourbon Company doubled down on barrel innovation this fall with a dual drop. The release marks an evolution for the brand’s flagship Discovery Series, shifting from sequential batch numbers to annual designations. The 2026 Discovery finishes a blend of 7-, 10-, and 11-year Kentucky bourbons for four months in Garryana oak from the Pacific Northwest, bringing nutmeg, clove, and structured spice to a 112.8-proof liquid. Joining it is Lochs of Jura, a bourbon-and-rye blend aged for 32 months in ex-sherry and bourbon casks sourced from the Scottish island of Jura. The 59-gallon sherry casks were too large for the ricks and had to be stored in the aisles of the warehouse. Bottled at 104 proof, it layers subtle smoke, soft malt, and briny notes. We hear an additional Distillery Reserve and Distillery Select are coming later this year, details to come.

Booker’s The Reserves

The third annual release in Beam’s premium version of this Small Batch Collection staple shifts gears from past finished bourbons to a cask-strength Kentucky straight rye. The latest Booker's The Reserves was aged for eight years and 10 months, and this uncut, unfiltered release was finished in apple brandy barrels and infused with a touch of cinnamon (that last detail caused a bit of a stir when early details trickled out on social media). Bottled at 123.3 proof, it pairs orchard fruit sweetness and warm baking spice with classic Beam rye, according to distiller tasting notes that appear already on e-commerce sites from control states. The release anchors a busy autumn for the distillery—Beam also just dropped Baker’s 13-Year Single Barrel to celebrate Baker Beam’s 90th birthday. The distillery is also set to release the next standard seasonal Booker’s batch and an upcoming Little Book “The Infinite” expression, Freddie Noe’s perpetual blend featuring whiskies distilled across three generations of Noe family master distillers.

Angel’s Envy Distillery Series: Imperial Stout & Amburana Barrel Finish 

Dropping September 10 exclusively at the Louisville distillery, master distiller Owen Martin’s latest Distillery Series entry bridges local craft beer culture with love-it-or-hate-it amburana cask finishing. Built on a base of six- to seven-year-old bourbon, this Angel's Envy release spent six to 24 months in imperial stout barrels from Trellis Brewing in Louisville and Goose Island in Chicago, and also included a small parcel finished for a month in Brazilian amburana wood. Bottled at 100 proof, the 18,000-bottle run has chocolate and cola notes, along with cinnamon and baking spice despite very little amburana cask making it into the final blend.

WhistlePig The Boss Hog XIII: The Golden Pharaoh 

Arriving at the end of September, the 13th installment of WhistlePig’s ultra-collectible Boss Hog series looks to Ancient Egypt for a world's-first cask finish. Inspired by a 3,000-year-old tomb recipe for tiger nut cake, this single barrel straight rye was aged in casks seasoned with Egyptian black honey (a traditional sugarcane molasses) as well as tiger nuts, which are sweet, edible tubers. Bottled between 102.6 and 105.6 proof depending on the barrel, the liquid balances deep molasses, brown sugar, and toasted almond notes with classic rye baking spice. Bottles are crowned with a collectable pewter King Tut stopper (in pig form, obviously), with a select few featuring rare gold variants. 

Bruichladdich Octomore 17 Series 

Bruichladdich’s annual study in extreme peat returns with four Octomore expressions that test how cask and grain interact with elevated peat parts per million (PPM), a measurement of smoke intensity. The 81-PPM 17.1 acts as the entry baseline as it is aged in first-fill bourbon barrels. 17.2 is made up of that same spirit, aged for four years in French oak casks that previously held bourbon and then finished in first-fill port wine casks (the first time the distiller has used this combination of casks). For terroir purists, 17.3 is made from single-farm barley grown two miles from the stills, and ups the peat level to 132.1 PPM. The whisky was aged for five years in a combination of first-fill bourbon and wine casks (including Sauternes, Syrah, and rare Eiswein). Rounding out the drop, 17.4 is a 108.2 PPM malt aged in Oloroso sherry-seasoned casks and virgin French oak barrels. This year marks the first time the .4 release will be available in limited quantities in the U.S.

Garrison Brothers Cowboy Bourbon

Texas craft whiskey pioneer Garrison Brothers returns nationwide on October 1 with the 12th edition of its uncut, unfiltered powerhouse, Cowboy Bourbon. Master distiller Donnis Todd hand-selected eight-year-old barrels matured through the punishing heat of Hye, Texas, yielding a liquid that officially crosses into "hazmat" territory at 141 proof.  We hear the 16,000-bottle allocation of the wheated bourbon is easy to drink despite its high proof, with notes of burnt wood, gunsmoke, and toasted marshmallow on the palate. SRP $250

Maker’s Mark Cellar Aged

Now in its fourth annual iteration, Maker’s Mark Cellar Aged delivers one of the distillery’s most mature wheated blends to date. Hitting select shelves earlier this month, the cask-strength 112.1-proof expression marries 11-year (49%), 12-year (33%), and 14-year-old (18%) bourbons. By transferring mature barrels from traditional rickhouses into the distillery's subterranean limestone cellar, master distiller Dr. Blake Layfield slows down oak extraction, allowing bright fruit character to develop without becoming overly tannic. The resulting pour pairs signature red winter wheat creaminess with notes of dark cherry, clove, honeyed plum, and crisp green apple. 

Barrell Bourbon New Year 2027 

Continuing its tradition of ringing in January well before the autumn leaves fall, Barrell Craft Spirits drops its celebratory New Year 2027 this month. Bottled at cask-strength of 116.6 proof, this year’s expression blends straight bourbons aged five to 16 years from seven states, introducing five-year-old Texas bourbon into the fold alongside barrels from Indiana, Kentucky, Tennessee, Wyoming, Maryland, and Ohio. While neat pours yield flavors of autumn cider, tobacco, and root beer, adding a splash of water opens up tropical depth, unlocking syrupy notes of papaya, mango, passionfruit, and honeydew melon alongside jasmine tea.

Parker’s Heritage Collection 20th Edition: 14-Year-Old Bourbon 

Heaven Hill marks the landmark 20th edition of its Parker’s Heritage Collection with a 14-year-old barrel-proof bourbon. What makes it stand out is that it spotlights a fermentation technique long championed by late master distiller emeritus Parker Beam—incorporating rye backset, the spent liquid recycled from a prior rye distillation run. Harnessing the acidic rye liquid during fermentation infuses a bold, spicy depth into the mature spirit. Distilled between late 2011 and early 2012 from Heaven Hill’s traditional bourbon mashbill (78% corn, 10% rye, 12% malted barley), the 100-barrel release matured across four rickhouses before being bottled non-chill filtered at an uncut 118 proof. Arriving in limited quantities this month, sales will continue to support the ALS Association, adding to the $1.4 million already raised in Beam’s memory.