Amazon Fire Stick is constantly updated to introduce new features and improve performance by fixing bugs. These patches are automatically downloaded and installed on your device when it is connected to the internet. You can also manually check for and install software updates. Here is how to update your Fire Stick.
Amazon Fire TV: How to Update Software/Firmware to the Latest Version
Here's how to perform a manual Amazon Fire TV update:
From the Fire TV home screen, select Settings > Device > About.
Select Check for system update.