I think jewelry crafting was a meaningful enhancement. It definitely opened up a lot of options. I need to clarify that the biggest enhancement provided by jewelry crafting is not so much being able to add crafted jewelry as the added jewelry traits.
System updates are those that add entirely new systems to the way you can play your existing characters, not merely widening their capabilities, but adding a new layer. Classes do not fit that description (Firor obviously also makes a distinction), because they cannot be used with existing characters, and merely widen the…