@dpom I agree. I suppose this would only work for comparing major technologies, e.g. Vite vs. Webpack, React vs. Vue vs. Angular, Bootstrap vs. Tailwind, ...

It's hard to automate this for every project on NPM (or other PMs).

Of course this will never be exact, since each project has different policies of when and how they release major versions. But it could give you a hint of what to expect.