In the new release announcement, Donald Stewart said: "Mageia 7 is released earlier thanAMDThe Ryzen 3000 series processor was introduced, so it does not work properly. That is, any type of installation is blocked in addition to the network installation during the installation process on the new processor. ”
The Mageia 7.1 Linux distribution has been updated very little, just to fix systemd init and includes security and software updates distributed through the main Mageia software library by July 11, 2019. The core installation package is identical to the Mageia 7, so you don't need to re-download it if you already have Mageia 7.