What is the oldest matured single malt scotch?

The oldest matured single malt scotch whisky is The Macallan 72-Year-Old, which was released in 2018. It was distilled in 1946 and matured in a sherry cask for 72 years. The whisky was bottled at 48.4% ABV and only 600 bottles were produced, making it one of the rarest and most expensive whiskies in the world.