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Samsung TVs will get 7 years of updates, starting with 2023 models
(arstechnica.com)
This is a most excellent place for technology news and articles.
At least on my TV, I've had firmware updates enable things like variable refresh rate, enable 4K/120Hz, improve the dynamic contrast performance, and fix a couple of weird bugs it had shipped with.
last firmware update I performed for my TV removed features, including the ability to see what resolution and framerate the set was currently displaying.