How to install 24.10 RC-1 using LuCI Attended Sysupgrade?

Installing and Using OpenWrt
1

If I try in LuCI says I am running the latest version, how can I enable RC versions, thanks

2

Upgrade using clean image then add packages?
https://mirror-03.infra.openwrt.org/releases/24.10-SNAPSHOT/

The version tag is auc -n -y -B 24.10