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The latest production runs will not have the bug. For units with the bug, to the best of my knowledge Denon will not be fixing them, so the dongle and firmware update are still required. This article explains what serial numbered units are bug free: https://www.avforums.com/news/denon-and-marantz-avrs-made-after-may-2021-are-hdmi-2-1-bug-free.18985
Sorry, there was a problem. Please try again later.Here is a helpful link that will answer your question. https://www.denon.com/en-us/hdmiadapter
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