In the past, Apple would upgrade any of my HD files to 4K when they added this 4K. At some point, or for whatever reason, not all my movies that RHD have been upgraded.
That’s not an issue with me other than the fact that I would love to know when they are available or eligible to upgrade, even if it makes a new purchase.
When you go to iTunes, if you own the movie, it just tells you what format you own. It doesn’t tell you if it’s available in a better format. Always tells you if it’s available in a lesser format. Does anybody have a definitive way to look at my Movies and decide wait there’s a 4K version?
Apple will upgrade to 4K when it becomes available if you originally made the purchase or redeemed the the digital code through Apple.
Every now and then a studio may be generous and upgrade your license to 4K, but that is rare.