Developers rightly praise Stripe's API documentation, but their approach to versioning and backwards compatibility is a gold standard that is not sung enough. What other fast-moving startup that constantly tweaks and changes their APIs also provide backwards compatibility with their earliest versions?
Stripe understands that handling payments is critical, scary, and hard to get right. When a company builds a payment solution that works, there is strong resistance to mess with it. The fact that Stripe is so backwards compatible means that they do not have to.
https://news.ycombinator.com/item?id=3054726