Check https://docs.classicpress.net/reference/functions/__autoload/, then click View on Git, which leads to https://github.com/ClassicPress/ClassicPress/blob/981da77ffa596fe3b1759c910cdb7b4021b03bc2/src/wp-includes/spl-autoload-compat.php#L22 which is not featuring the same code as in the doc, and more importantly - the code in the
master GIT is not the same code as I have in any of my (up to date) CP installs.
In current CP install that file reads as it should, in versions prior to 5.3 this function still exists and the file is with code, not deprecated, on my instals I can see the code in the files as expected.
The only that I can explain this to myself is that
master Git is not the same as stable tag 1.2.0
Which is IMO weird because master in Git reflects the last stable code, or am I wrong?
And if I am wrong, where can we link to so we get the actual up to date code in Git?