> Because ML engineers also want version control and easy history and rollbacks and pull requests with code reviews for model changes. That's not an answer so

> Because ML engineers also want version control and easy history and rollbacks and pull requests with code reviews for model changes. That's not an answer so much as an excuse. > There is no tool that does that except for the version control systems that programmers use. It wouldn't be much effort at all, especially for Google, to write a simple wrapper that relied on a database or zfs snapshots or anything actually more suitable.