To my knowledge, stacked diffs were first done in the Linux kernel as stacks of patches sent over email. From there they spread to Google and Facebook. (Source: I worked on Facebook's source control team from 2012-2018 and did a lot of work to enable stacked diffs there.)

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js2 8 hours ago | parent | next [-]

Right, I was thinking from a web-based UI. The "pull request" term is from git (AFAIK), but git itself was built to accommodate the earlier concept of mailing patches around. (Source: I've been using version control since RCS/SCCS days and contributed here and there to git in its infancy. Also an early user/contributor to Gerrit.)

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hokumguru 4 hours ago | parent | prev | next [-]

Congrats and thank you. You helped build one of the best devex experiences I've ever had the pleasure of working with :)

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p-e-w 5 hours ago | parent | prev [-]

At some point, a derivative idea becomes so different from the original one that it’s a novel idea in essence. Just like SMS is ultimately a derivative of cuneiform tablets, and yet it isn’t in any meaningful sense.

	▲	sunshowers 5 hours ago \| parent \| next [-]
		I don't think mailing stacks of patches is that different? As someone who built this stuff it was pretty obvious to me that web-based patch stack management was a relatively small evolution over mailing lists. Tools like patchwork bridged the gap initially, and we were quite familiar with them.
	▲	monster_truck 5 hours ago \| parent \| prev [-]
		Imagine gettting a cuneiform tablet by courier telling you that you have unpaid parking tickets in a state you've never driven in