Apple has authorized coverage within four years from the original purchase date of affected models, according to an internal document distributed to Apple Authorized Service Providers and later obtained by MacRumors.
Eligible models, listed below, qualify for a free display replacement within the four-year coverage period. Check your receipt to determine the exact purchase date of your MacBook or MacBook Pro.
• MacBook Pro (13-inch, Early 2013)
• MacBook Pro (15-inch, Early 2013)
• MacBook Pro (13-inch, Late 2013)
• MacBook Pro (15-inch, Late 2013)
• MacBook Pro (13-inch, Mid 2014)
• MacBook Pro (15-inch, Mid 2014)
• MacBook Pro (13-inch, Early 2015)
• MacBook Pro (15-inch, Mid 2015)
• MacBook Pro (13-inch, 2016)
• MacBook Pro (15-inch, 2016)
• MacBook Pro (13-inch, 2017)
• MacBook Pro (15-inch, 2017)
• MacBook (12-inch, Early 2015)
• MacBook (12-inch, Early 2016)
• MacBook (12-inch, Early 2017)
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Affected customers can schedule a Genius Bar appointment at an Apple Store using the Apple Support app. Or, on the Get Support page, click Mac → Mac Notebooks → Hardware Issues → Display Issue and options should be presented to initiate a repair or contact Apple via phone, email, or online chat.
Affected customers can also visit an Apple Authorized Service Provider to determine if their notebook is eligible for coverage. Apple's document states that these third-party repair shops can even replace displays with other damage free of charge so long as the anti-reflective coating issues are present.
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Apple's internal document also states that customers who already incurred out-of-warranty costs related to this issue continue to be eligible for a refund, which can be initiated by contacting Apple support directly.
https://www.macrumors.com/2017/11/17/apple-extends-free-staingate-repairs/