I don't see much discussion on maintenance of software built by LLMs using LLMs.

We already know the hard part of software engineering is designing and implementing code that is maintainable.

Can LLMs reliably create software and maintain it transparently without bringing in regressions ? How do people with no knowledge of software guide LLMs to build quality test suite to prevent regressions ?

Or is it the expectation that every new major release is effectively a rewrite from scratch ? Don't they have to maintain consistency with the UI, database and other existing artifacts.