thebitguru

All you need to do is to post any update on GitHub as and when you make one. The Gallery will automatically detect the update and itself will be updated soon after your GitHub update. Users who have downloads from the Gallery can use the Alfred Gallery link (at the bottom of the list of workflows in Alfred) to check for, and download, any updates from the Gallery.

As long as you keep releasing them the same way (e.g. new GitHub releases) updates will be detected and checked for. If you ever change the distribution method it’s helpful to flag that so the update mechanism can adapt. Note there is a delay between a release and it showing up in the Gallery which allows the workflow creator to add requested features and deal with any feedback.
 
Stephen

For anyone landing on this thread: the previous iTerm scripts have changed ownership (disclaimer: I’m the new author) and have been rewritten from scratch, so if you have any issues try the newer versions.

You can find them on the new repository, or by using the old links as they will redirect to the new one.

Hate to bring back an old topic, but I found a permanent, MacOS-based solution to this after speaking to the wonderful senior support at Apple (h/t Nick at Apple, 1109457).
 
To force folders in Alfred searches to open in Finder tabs:
Go to Apple > System Preferences > Doc Set "Prefer tabs when opening documents" to Always. I'm doing this on on macOS 10.14.3 (18D42). Works like a charm.
 
You are welcome.

You’re asking how to set up a specified  keyword to launch a specified folder, right?  That does require customisation, exactly as @vitordescribed.