Is it currently possible to install Xamarin beta while maintaining stable release side by side?
Not currently. You can have multiple instances of Visual Studio for Mac if you extract the .app from the .dmg file. However installing a different version of Xamarin.iOS and Xamarin.Android will overwrite the existing install of that component.
Thanks for your response! If I install beta releases will I be able to downgrade by simply switching update channel back to stable?
Yes. When you switch channels the updater will allow you to install versions that are considered compatible for that particular channel. So you should be able to switch to the beta channel, install the beta versions, then switch back to the stable channel, and install the stable channel versions back again.
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