Do camera manufacturers owe you future firmware upgrades when you buy a camera?

One of the nifty benefits of technology is that we live in a world where products can be updated or upgraded after buying them. This includes obvious things, like computers, phones and tablets, and less obvious ones, like TVs, cars, or remote pet feeders. To my surprise, I recently discovered a firmware update for my oven, but since the release notes don’t say, ‘This update fixes a bug that will burn down your house,’ I haven’t bothered to install

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