A new client update is available for download.
Download link: http://ucgoserver.com/gameclient/UCGOupdate.exe
Install it the same way as before.
This update changes the required crafting skill and materials for more weapons. Also it fixes several EX weapons so they can be equipped correctly.
Also there are now changes to how EX and HG weapons work.
EX weapons will be similar to non-EX weapons but they will use less ammo, have a larger magazine, longer range and higher durability.
HG weapons will no longer have very high attack power. Instead they will have increased accuracy, about 2-3 times higher than non-HG weapons.