Please, return the "Supported versions" section, which was recently removed. Here're a few cases I've found that make it still useful:

• To see if an extension is orphaned, or if you just need to wait for a new compatible version. It's useful for both installed extensions and when you're looking for a new one
• For developers: to decide whether to contribute for an extension or it takes too much time, depending of how old the extension code is
• To see how often an extension has been updated (are there some gaps between versions or not) to decide if the extension is well-supported
• Some people may have multiple devices with different gnome versions and need to see if an extension supports all of them

Related issues: #604