I use Sandbox Upgrade Mode. If I have both public and Beta release, can I preview both versions?

Yes, you can preview both public and Beta versions using the Sandbox Mode.

Related articles:

• Can I preview the Beta version?
• I am currently on Beta version, and the new public release is made. How can I go back to the public release?
• Can I upgrade to the Beta version if I use the Auto Upgrade?

Main articles about New Upgrade:

• ShortPoint SPFx New Upgrade for Office 365 and SharePoint 2019
• ShortPoint SPFx Auto Upgrade Feature
• ShortPoint SPFx Sandbox Mode Feature

You may check other FAQs about ShortPoint Upgrade in this folder.