Porting ethernet to a new embedded cpu (Nios II) - have the instructions been updated to the latest Augus 2023 release?

Good to know, thank you for clearing my confusion…
Now I’m wondering, which one is quickest for me to create a proof of concept test?
I’m tempted to use the older stuff, but then I’d be looking to update it to 4.x…
Any idea how more/less stable 4.x is compared to 3.x ?

(I’ve decided to try the path forward and see how hard it is to get the 4.x ethernet up and running. Anybody out there knows why I should stick with ethernet 3.x let me know!)