Hi there! I see you're having trouble with the Gather app not updating for weeks on your Mac with macOS 10.15.7. Let's get to the bottom of this together.

First, can you tell me a bit more about what you mean by "not updating"?
- Are you trying to update the app itself to a newer version and it won't install?
- Or is the app running but not showing new features or content changes that you'd expect after an update?
- Also, how are you updating—through the Mac App Store, directly via the Gather website, or some other method?

While you think about that, here’s a step-by-step plan to check the most common causes:

1. Check for Updates Manually
Since you're on a Mac, the Gather desktop app updates might sometimes need a manual reinstall. Head to the official Gather support page to download the latest version for Mac: Download or Update the Gather 1.0 Desktop App.
Try uninstalling your current app and then reinstall the newest version. This often resolves update stalls.

2. Internet Connection Check
Sometimes a flaky internet connection can block updates. Ensure your Mac is connected to a strong and stable Wi-Fi or Ethernet. You might try restarting your router or switching networks just to test.

3. Permissions Check
Make sure the Gather app has permission to update itself. Go to System Preferences > Security & Privacy > Privacy tab, and check if anything relevant is restricted.

4. Clear Cache or App Data (if applicable)
Some apps cache update info. Fully quitting the app and deleting its cache files can reset this. I can guide you through this step next depending on your comfort level.

5. Check for macOS Updates
Occasionally, app updates require certain OS components. Go to Apple Menu > System Preferences > Software Update and check you have all current OS updates installed for Catalina 10.15.7.

If you have already tried some of the above, just let me know which steps you've done, and I’ll help you dig deeper or explore other options.

Are you primarily using the desktop app or the web version? Also, do you see any error messages during update attempts?

Looking forward to your reply so we can sort this out!