Sprint has posted the details regarding an impending OTA for the Galaxy Tab 3. This software update won't turn the tablet into a brand new device, nor will it even bring along much in the way of fresh air, but it's better than nothing. Software version T217SVPUANB8 will improve WiFi, install KNOX, and make the WiFi "auto network switch" default to off. That last one's pretty specific, but Sprint says it will ultimately enable users to connect to any WiFi network regardless of its strength by suppressing the "Your internet connection is unstable" error message.
Sprint is rolling out the update in stages. This means you can manually check for it now, but you might not get anything to show for it just yet. A notification will pop up once your time comes.