We are ready for upgrade, all you have to do is to download new version here:
https://github.com/Kiirocoin/kiiro/releases/tag/v1.0.0.5

and replace your old qt with latest, only kiirocoin-qt, before remember always to take a backup of file wallet.dat, then you are ready to go, this is a mandatory upgrade, so do it before block 190,000.