Neither the Linux kernel, nor OpenSSL, or any other reasonably complex project manages to do that over a given time frame. Sometimes you need to adapt, and things break in the process. Nobody would expect a house built 30 years ago to not require some maintenance and upgrades over time.
> The web environment Wordpress runs in did not change all that much. The JS ecosystem simulates big changes, but that's all bullshit. Server code that worked 30 years ago still works - if projects like PHP don't go out of their way to break it.
That sure sounds good, but is simply not true. We went from HTTP and FTP deployments to TLS and containers, from dialup to gigabit consumer uplink; the browser isn't a remote document viewer but a platform-agnostic virtual machine for fully-fledged applications; the web is centred around a few enormous platforms; people regularly stream GBs worth of video and expect services to deliver web apps on a variety of devices; they don't post on bulletin boards and in news groups, but use chat services; scammers distribute ransomware, steal your identity, remotely take compromising pictures from your webcam, or order stuff from your shopping accounts online. The modern web has almost nothing in common with the one from 30 years ago.