I’ve been doing a  lot of IPv6 stuff lately, and one of the things I didn’t find (and kinda just wanted to put one together for my own benefit) is a matrix of features I thought were important to have on the IPv6 side for common network hardware.  Below is a work in progress of what I have so far, which will automatically publish changes from this spreadsheet.  Please email me if you’re interested in adding to this or correcting anything I may be incorrect on. 
This has evolved into something else entirely.  I’ve had a very good response to this very rudimentary start of a feature matrix and have decided that it’s going to get expanded into whatever it needs to become.  I’ve added the start of a matrix for network security hardware / appliances here. 
I may eventually break this out into L2 and L3 as well as security appliances.