Q:

PHP versions are shown out of order

In my flurry of version edits yesterday in documentation, I noticed that in PHP's documentation editor, version 4.4 is shown as between 5.0 and 5.1. I checked and there aren't any invisible characters in that entry. What caused this?
Example of such behavior

A:

The issue here is that documentation is ordering versions by release date, and not by the ordering of the versions table.
See https://stackoverflow.com/documentation/php/189/introduction#t=201609201503255693812&a=versions: 4.4 has been released after 5.0, thus the implicit order is 4.3, 5.0, 4.4, 5.1, ...
Thus, it's not a bug, but by design. The design is questionable though...

