The thing is that hook is not enough: `UpgradeSelect` only applies to `yay -Syu` so it only filters the upgrade list.

Nothing protect you from a `yay -S foo` install and its dependencies. So this is not a guarantee or enforcement of a minimum release-age.

Actually writing this reply I went ahead and pointed that out in an issue at: https://github.com/Jguer/yay/issues/2883