Can AI do large code migrations?

“we handled more than two hundred and fifty automated migrations, cumulatively nine million lines of code automatically for our engineers.”

Uday Kiran MedisettyDistinguished Engineer · Practitioner, Uber

“a recent Java migration across backend services completed in three days”

SpotifyPublished by the organization itself (post), no named author

“we reached 97% of the 3.5K original Enzyme files”

Charles Covey-BrandtAuthor of the Airbnb engineering blog post on LLM test migration (role not stated on the page) · Practitioner, Airbnb

“I was like, OK, I need to port this whole thing from Python to TypeScript. Like, as a-- you know, if I put on my, like, 2010s engineering hat, or even my early 2020s, like, that's a dumb idea. … But I was like, I think this is doable now. And I basically created this dynamic workflow set up. And over the weekend, … port the whole thing, like, verify it, double check it, … and then came back Monday to complete a workflow that was a ported version of that thing.”

Mike KriegerHead of Anthropic Labs · Leader, Anthropic

“We’ve also internally done a big shift to make a lot of our core, components of code testable as purely local dev without needing to actually, integrate with, any live services for this reason. And honestly, the older the company, the more you have to change to shift in this direction. But you can use AI to help you perform this migration nowadays.”

Walden YanCo-founder and Chief Product Officer · Executive, Cognition

“Engineers reviewed requirements and plans before proceeding with implementation.”

Max Da SilvaVP of Engineering, Growth · Leader, Shopify

“Organizations running this model report 3 to 5x productivity gains. Legacy backlogs that once ran to thousands of work days shrink to hundreds. Time to market compresses from quarters to weeks.”

BCG PlatinionPublished by the organization itself (post), no named author