Right now I normally find out there is a new version of GoCanvas for Windows by periodically going to www.gocanvas.com/m and then downloading the version there and checking the properties for the version information.
I normally find out there is a new version of GoCanvas for Android by noticing that it did an auto update.
I'm not sure about the Apple / iOS updates but I imagine them behaving similar to Android.
It is also sometimes a surprise what winds up in an update or not, what's fixed (or possibly broken), etc.
I believe it would be very helpful if we had the ability to "subscribe" or "opt-in" to update notices and accompanying release notes via email (or a page in the web UI that we can "follow" to get email notices from).
This way we could get proactive notification about a new version and then be able to read some release notes that highlight (with at least simple bullet points and possibly links to further reading if necessary) what's new, what's different, what's fixed, known issues, and any other pertinent information.
This seems to be a best practice in software development and helps to lower anxiety and foster trust. Knowing is half the battle.