Didn't change much?
Let's see ...
The only thing that was constant was the body shape and the pup set up, young man! Everything else pretty much changed:
- there were first alder bodies and then maple ones, they sound remarkably different, with the alder ones fuzzier and livelier and the maple ones offering more focus and depth,
- the first generation did not have a scarfed neck, but was one-piece, with a straight, but recessed/lowered headstock in Fender style (correspongingly, the three screw trc is concave not level), likewise a slotted Fender style truss rod bell and even a skunk stripe, only maple boards available
- the next generation had a a single piece neck with a scarfed headstock angled back - the classic Gibson hex truss rod bell makes an entrance, still only maple boards available, the trc flattens out, but retains three screws
- by the early eighties the ebony fretboard becomes available, the trc loses a screw (I hate it when that happens, ruins the whole evening!),
- the final run ditches the one-piece maple neck with scarfed headstock in favor of three piece necks with an angled back, but not scarfed headstock.
That is more structural changes within ten years than, eg, the TBird ever saw - from 1963 to today!
Oh yes - and somwhere along the way they changed the bridge material to a much harder metal so the height adjustment screws would no longer gouge and strip as the older ones were notorious for.
It always feels good when you have the chance to be a little more anal than Jules already is!