pwaring, Currently working on a rewrite of an old application (PHP 5.6, was probably written in an even earlier version) by building a new one in PHP 8.3 and migrating all the data across.
I don't usually recommend rewrites but occasionally it's more cost-effective than trying to fix really old code.
Even though I work with legacy code every day, the changes in 8.3 (and libraries that require it) make life so much nicer.
(I currently work with versions from 5.4 to 8.3)