There is no comprehensive list of history/change for XC parts. Lots of stuff has actually remained the same for the past 7 years (Footsies, LongLoader, WideLoader, V-Racks, SnapDeck, SnapHooks).
FreeLoaders have gone through an evolution of pockets (the inner flap and zippered mesh pocket (that's now no longer a part of the new FLs), the way it attaches to the FreeRadical (to braze ons with mushroom bolts instead of intricately threading webbing through a tensioner).
FreeRadical started out with square tubing, progressing to round tubing. Braze ons were added over time, lighter weight tubing and refinements on the tongue.
Sure there's more, but that's a quick gloss.
Is there a list of how all the different parts have changed over the years? Preferably with descriptions/identification guide and pictures.
I know only the newest changes to the Freeloaders that allow using them with the adventure rails (since I have the older and can see the new pictures) but apparently there has been a third version of freeloaders too, if I'm not mistaken. I suppose the Freeradical base must have changed too, but don't really know in what all ways.