Why the switch: Netch adds SSR support, supports TUN/TAP proxying of games and Windows Store app, and is more stable than v2rayN. It also supports automatic server list updates. We've been testing this app for 3 months with no issues.
Old app: ClashX version 1.30.0 and under, and v2rayU
Why the switch: ClashX added SSR support on version 1.30.2 along with other improvements. We've also simplified the server list to make it more user friendly compared with older ClashX version.
But you said you were dropping support for ClashX? That was before they added SSR support and addressed other similar issues. We have indeed phased out earlier versions of ClashX. If you don't need SSR support, you can stick with v2rayU.
IMPORTANT: When upgrading from an earlier version of ClashX, make sure to UPDATE THE API LINK. ClashX versions are not comaptible with each other.