If you use Mozilla Firefox or any Chromium-based browser, notably Google Chrome or Microsoft Edge, you’ll know that the version numbers of these products are currently at 97 and 98 respectively. And if you’ve ever looked at your browser’s string, you’ll know that these version numbers are, by default, transmitted to every web page you visit, as a kind of handy hint to say, “Look who’s coming to dinner.” In an ideal world, the header would be entirely redundant, given that websites are supposed to float disinterestedly above such petty details as which operating system you have, what CPU it’s running on, how many bits it works with, what graphics system you’re using, and which brand of browser you’ve chosen.

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