Galaxy Tab S Android 6 how to upgrade to Android 8 or higher

[Timbo09]

My virus software will not support Android 6 soon.  How do I upgrade to 8 or higher ?

Many Thanks

[Pugs1957]

There are no upgrades available for the tablet. Your options are
1. Root and flash a custom ROM. This is not for a novice and can compromise its security.
2. Use an alternative AV
3. Replace tablet

[Shazzkid]

You can try what Pugs1957 has suggested. But honestly you don't even need an antivirus on an android tablet.