Samsung is busy in bringing Android 10 updates to its flagship devices from the past few months. In November last year, the Galaxy 10 series was the first one to receive the One UI 2.0 beta, which is based on Android 10. But, the Galaxy S9/ S9+ received their stable Android 10 update yesterday.
As for now, Samsung doesn’t seem like have any plan for an update for the Galaxy S8/S8+ and Galaxy Note 8. Moreover, none of these devices are on the list of Samsung’s One UI 2.0 update schedule. All three devices have well past from their standard 2-year software support window and also received two major Android version updates during their run. There is no official Android 10 update for the Galaxy S8/S8+ and Galaxy Note 8.
If you don’t want to upgrade to get the latest Android version, then you can try installing the unofficial build of LineageOS 17.1. XDA Recognized Developer Strict, which releases the ports of LineageOS 17.1 for the Samsung Galaxy S8, Galaxy S8+, and Galaxy Note 8, allowing the owners of these devices to experience Android 10 unofficially.
After this update, the signal indicator and video recording on the stock camera app will not work correctly. This update will not allow you to use your Bluetooth headphones to listen to music. Moreover, SELinux is in a Permissive state, while the Screen Cast functionality is broken as well.
If you still want these bugs in your smartphones and want to try, then you can download it from the below-mentioned links. To flash this ROM, you should have an unlocked bootloader and custom recovery like TWRP installed in your device. Also, these builds are intended to be flashed on Exynos models only.
Unofficial LineageOS 17.1 for Galaxy S8/S8+ – Download
Unofficial LineageOS 17.1 for Galaxy Note 8 – Download