Yay, armor upgrading works now and it also works in combat as intended.
Actually, now that i've peered into the upgrade system a bit further, isn't the lacy panties supposed to give +1 charisma, even without the upgrade and +2 with the upgrade?
Because when i upgraded the lacy panties, they didn't give +2, only +1 in charisma?
Upgrading charisma on other types of panties does work though, giving them +1 charisma, making them on par with the regular lacy panties now.
Lingerie also doesn't seem to give +2 charisma when upgraded, same as lacy panties?
:EDIT: Upgrading the reward Gladius +2 from the spider encounter actually downgrades it into +1 +1, like a normal gladius that you would upgrade?
Also the lightweight upgrade that's supposed to halve the weight of an item doesn't seem to be doing that, because comparing the stats on upgraded and non-upgraded gladius shows the weight at 15 on both, also changing which one is equipped doesn't affect the equipment load on the inventory screen.
:EDIT2: It actually seems like every armor piece that has a base +1 attribute (gauntlets of strength, helmet of wisdom, shoes of running, lingerie and lacy panties) do not seem to actually give you another point when upgrading their respective attibute, full plate seems to be working though, giving the +1 magic and +1 endurance when upgrading them.