Hurrah for everyone who found it "simple" to migrate to IPv6. Now kindly share your tutorials rather than sniffing at us old dinosaurs.
To add IPv6 to my Cisco router was a line in the VLAN interface to add the IPv6 Address, plus a few lines to my BGP config to distribute my IPv6 subnets.
On my Ubuntu boxes, it was a small text file (About two or three lines) to add an IPv6 Address.
Windows was a trivial point and click.
The Apache website just required an additional Listen directive.
My web apps (which are fronted by Apache) needed no changes.