Armors were changed to work on absorb points instead of absorb
percent like it was before. What does it mean? It means that
any damage you do to the bodypart covered by armor is absorbed
to the max absorb point the armor provides and rest of the dam
is inflicted. It means that if your breastplate absorbs 30
points of damage and you received a hit of 40 damage only 10
damage will be inflicted to you.
At the same time most weapons were slightly downgraded to fit
into new system, as well as most mobs (prolly most smobs are
no longer smobs for the time beeing)
If you were online in the time of armor/weapon changes it might
be so that your armor or weapons are in old format and you can
ask gods to replace them.