Pretty much every piece of open source software ships with a legal document saying that the software is provided as-is without any warranty or guarantee of functionality (i.e. https://github.com/rui314/mold/blob/main/LICENSE ). Unless I had a support agreement with the maintainers that superseded that document, I would not expect any special treatment from upstream. Personally, whenever I add a new dependency, I do it with the knowledge that I may have to either replace it or take on maintenance myself in the future.