No it hasn't. The only thing that makes you think so is the unrelenting churn of modern web development. Back in the day if you bought a particular toolchain you could keep developing with it for as long as you wanted and the only thing that could force you to upgrade is the need for more features. In the past you'd get nice-to-haves at every upgrade but if you didn't opt for it you would be perfectly able to continue developing your current condebase using your current, paid-for tools.