I’m not sure what options exist (if any) on this platform to update a pre-existing download on this platform. That aside, I’ll hold off maybe another week or so before attempting to push an update to the demo.
Sorry I'm not playing the demo!
https://itch.io/docs/itch/integrating/updates.html
For now, when uploading a new file on itch.io:
- Uploading a file with the exact same name will:
- Replace the previous one
- Keep the stats (download count)
- Temporarily make that download unavailable, while it's being uploaded (known issue)
- Uploading a new file and deleting the old one will lose the stats, but there'll be no downtime.
- Don't forget to tag it with the right platform again
- Alternatively, 'hiding' the old download will allow you to keep the stats for a while.
Needless to say, this process isn't ideal for often-updated games, and we recommand using butler instead.