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What's the current state of Git and SHA-1?

This: https://sidewalk.crustytoothpaste.net/tech/git/2020/01/11/sh...

Thanks.

Linus knew, damn it. He knew SHA-1 was obsolete.

Did he? My impression was that they had SHA-1 from the start (maybe with a planned way to add another hashing) and only started to really switch gears when they got a real SHA-1 collision.

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