Installing UXP panels
Adobe added support for UXP panels in Photoshop 2021, so that is the minimum version required for UXP panels (though ultimately the minimum will be raised for some panels over time as the UXP feature set is expanded). Older versions of Photoshop cannot run any UXP panels.
Installation of UXP panels is done through the Adobe Creative Cloud Desktop (CCD). Depending on how a vendor distributes a UXP panel, you may receive a ".CCX" file to double-click (which will invoke CCD) or the installation may be done entirely through CCD (which is currently the case for my Web Sharp Pro panel). You can install on all the computers you install Photoshop on when purchasing via Adobe Creative Cloud.
If you need to purchase the panel or install for the first time:
If you have previously installed the panel, your process is similar, with just a few differences:
Troubleshooting install problems:
Issue: I've already bought the panel and CCD still shows "Buy" instead of "Install"
This will happen if you purchase using an email address which does not match the one you normally use to log into Photoshop/CCD.
Please contact [email protected] for assistance. They will likely advise you to make a second purchase under the matching email and request a refund on the first purchase.
Issue: Status Code Error 401
This indicates that CCD cannot connect properly to the internet. Make sure you do not have ad blocking or other similar programs preventing CCD from working properly.
Updating UXP panels:
There are two possible ways to update plugins.
If you installed the plugin directly from CCD (no CCX file), then the plugin should update itself automatically (this is the process for Web Sharp Pro). You may use the "check for updates" option in CCD or restart your computer if you do not see it. Note that uninstalling should be avoided, as this will delete any panel-specific data (such as preferences for the panel).
If you installed locally via a CCX file, then you can update the same way you installed the first time. You just double-click the CCX file and proceed. Again, do not uninstall or you may lose panel-specific data.
Uninstalling UXP panels:
You may simply close a panel by right-clicking it, which may be better than uninstalling if you ever need to use it again. Or just disable it in CCD (same place you choose to uninstall).
Caution: Uninstalling will delete all panel-specific data (such as preferences for that panel) without warning. If you are using Web Sharp Pro, click Tutorials and see the instructions for backing up if you wish to preserve your data when uninstalling.