there is no date in garmin web site www8.garmin.com/support/download_details.jsp?id=15289
it's not ideal but a way to find out is to browse the specific forum of the device to see the news item of the release
in your case: forums.garmin.com/.../beta---venu-sw-5-21-is-available
Thanks. It s better than nothing ;)
I frequently note that when users have issues with my apps, it sticks to a new firmware release.
