A Spark popped up in Hub Notifications. Hmmm, what is this I wondered to myself? It turned out to be an update to the Amazon Appstore. The change log says:
- Bug fixes.
- Performance improvements.
To check for an update, open the Amazon Appstore, tap the menu button in the upper-left corner, open Settings under the ABOUT section, Version and Release Notes, tap the Check for Update button, wait a few seconds to see if an update is found. See the screen capture video below where I checked for an update on my Passport: