Outdated Client Version | MTG Arena Error Fix
In this video I demonstrate how to fix the error message "Outdated Client Version" "An update is required for compatibility. Please use MTGALauncher.exe to update to the latest version of MTG Arena and log in again.
Please Note - this tutorial was made for Windows.
I see as of 4/15/2021 this also appears for at least iOS after a new patch is released. At the moment, this is related to scheduled maintenance.
MTG Arena Status - https://magicthegatheringarena.status...
Update
Manually going into the App Store and updating the game seems to have resolved the problem