Follow along with the video below to see how to install our site as a web app on your home screen.
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Plesk Uservoice will be deprecated by October. Moving forward, all product feature requests and improvement suggestions will be managed through our new platform Plesk Productboard.
To continue sharing your ideas and feedback, please visit features.plesk.com
Be aware that Plesk Obsidian hasn't been released yet, it's still in the preview phase, so it's not recommended to run this version on a production server. Changelog, release notes and instructions on how to upgrade can be found here: Change Log for Plesk
As Monty explained there is no stabled Plesk Obsidian version release yet.
Also you do not use one-click-installer to upgrade Plesk.
If you are already have Plesk installed, you will get a notification on the Plesk Panel(logged in as admin) when Plesk Obsidian ready to use. Depending on your > Tools & Settings > Update and Upgrade Settings how early you will get that.
Also If you would like to try Plesk Obsidian Preview version. You can install it to a new server. Test the Plesk Obsidian Preview