(covers information from several alternate timelines)
A vintage was a specific quality or edition of alcoholic beverage classified by the year it was produced.
Twelve cases of a rare vintage of Romulan ale were once possessed by the Zibalian trader Kivas Fajo. (TNG: "The Most Toys")
Annorax stored the last remaining bottle of Malkothian spirits, which he referred to as having an extremely rare vintage, aboard his weapon ship. (VOY: "Year of Hell, Part II")
Kai Winn Adami possessed a bottle of Bajoran springwine from before the Occupation. She intended to give it to Benjamin Sisko as a wedding present, but, after the wedding was called off, she shared it with "Anjohl Tennan". (DS9: "'Til Death Do Us Part")
Quark's bottle of Vulcan port was three hundred years old. (DS9: "The Maquis, Part I")
2309 was a popular vintage of Klingon bloodwine favored by Worf and Martok. (DS9: "Treachery, Faith and the Great River", "Once More Unto the Breach", "What You Leave Behind")
Kanar from the year 2327 was more expensive than regular kanar. (DS9: "Behind the Lines")
When Jean-Luc Picard returned to Earth to meet his family in 2367, he sampled a glass of Chateau Picard 2347 and mistook it for a 2346 vintage. (TNG: "Family")
Quark had a bottle of Kandora champagne with a vintage of 2368, which he gave to Kira Nerys in 2371. (DS9: "Meridian")
In 2374, the senior officer's of the USS Voyager celebrated the commissioning of the astrometrics laboratory by opening a bottle Saint-Émilion with a vintage of 2370. Captain Kathryn Janeway remarked that she heard the 2370 was a "good year." (VOY: "Year of Hell, Part II")