Most don’t.
Some wines will oxidize with age as some air gets through the cork. This tends to ‘mellow’ out a wine and allow some of the harsher flavors to evaporate or oxidize.
Some wines continue fermenting even after being bottled. The fermentation process creates more flavor compounds over time as microbes digest sugars and poop out various compounds.
For the most part, wine stops aging once you take it out of the barrel/tank and put it into a bottle.
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