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Maybe mbox (https://en.wikipedia.org/wiki/Mbox https://en.wikipedia.org/wiki/Mbox), the Unix email message data file format? It hasn't changed much in a really
by adrianmonk 5y ago
Maybe mbox (https://en.wikipedia.org/wiki/Mbox https://en.wikipedia.org/wiki/Mbox), the Unix email message data file format? It hasn't changed much in a really long time, but it's also extremely simple.
Also the diff/patch format (https://en.wikipedia.org/wiki/Diff https://en.wikipedia.org/wiki/Diff) is almost as old as GIF, but Wikipedia says unified diff support was added in 1990-1991.