Github link is up to date: https://github.com/projectinterzone/ITZ

You should do 'make clean' or remove and re-clone the project if you are building from source.

Mac client: https://interzone.space/Interzone-Qt.dmg https://www.virustotal.com/#/file/41ce03ef5d6150b7811529e0487f2b64603918ea1f8ca89b69e95620cdcc2a18/detection

Windows client is compiling now, links very soon.