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1,145 pull requests per day

There is a recent video of Patrick Collison at Stripe Sessions 2025 stating that in 2024 Stripe did on average 1,145 pull requests per day. Not just creating them, but actually finishing them; "fully shipped into production". All whilst having less than a minute of API unreliability for the

With some napkin math assuming a similar distribution today, that would mean on average each engineer ships at least 1 change to production every 3 days. Shipping safely at this velocity and scale implies heavy investment in automated tests, deployments, rollbacks, observability, code ownership and so forth. There are quite a few nuggets scattered on the internet regarding how Stripe does things (ex.#1,#2,#3) and in general the conclusion is that they have a very demanding but very advanced engineering culture.

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