Joe Rossignol, MacRumors:

Apple will add 11-inch and 13-inch MacBook Air models released in Mid 2012 to its vintage and obsolete products list on August 31, according to an internal document distributed to Apple Stores and Apple Authorized Service Providers and obtained by MacRumors from a reliable source.

But:

Normally, this would mean the 2012 MacBook Air is no longer eligible for hardware service, except where required by law. However, Apple has decided to include the notebook in its recently launched pilot program that allows for repairs to continue into the vintage period, subject to parts availability.

Apple says 2012 MacBook Air models will remain eligible for service at Apple Stores and Apple Authorized Service Providers worldwide through August 31, 2020, a full two years after the notebook is classified as vintage. Mail-in service will also be an option in the United States and Japan through that date.

I appreciate Apple making this available, helping keep select older models on the road for that much longer. They could easily have not done this, which would have pushed people to buying new machines instead of repairing their existing machines.