Update [May 02, 2017]: T-Mobile has just released a fix for the prevailing red tint issue on the S8 and S8+ screens. The update is around 140MB in size and is rolling out over the air as software version G950USQU1AQDE. The fix basically introduces a new slider that will let you adjust the color balance. The slider was included as the intensity of the red tint varies with the device in question.
Update [April 22, 2017]: The Galaxy S8 and S8+ are now receiving a new update from Verizon. The updates arrive as builds G950USQU1AQD9 and G955USQU1AQD9 and bring in a few necessary tweaks. The display ratio is now up to 16.74:9 which will fully let you experience the Infinity Display the way it was meant to be. With this update you also get the option of answering calls using the Volume Up button and the camera icon is also revamped. The update installs the latest security patch and also patches the Bixby button remap ability.
Update [April 21, 2017]: T-Mobile is rolling out an update to the Galaxy S8 and S8+. The update is identified by build number G955USQU1AQD9, and tags along improvements to Face recognition and adjustments to the camera user interface. On top of that, this build also applies the April security patch and resolves other issues too. Downloading over WiFi is preferred as the update weighs around 392MB.
Samsung is rolling out a minor firmware update globally to Galaxy S8 and S8+. The new update installs the latest monthly security patch and more importantly tags along the fix for Bixby button remap.
The new update is hitting Galaxy S8 units as build number G950FXXU1AQDD while the S8+ handsets are receiving the update as build number G955FXXU1AQDD.
Apart from installing the April security patch, the update comes with a fix for the Bixby button remap. It disables the remapping ability of Bixby button on the two smartphones. Thus, henceforth S8 and S8+ users will no longer be able to launch alternative AI Google Assistant or any other apps using the Bixby button with the help of third party apps.
The update, being rolled out over the air, is not only hitting the S8 and S8+ launched units but are also available in regions where these handsets are yet to be launched. A case in point is Australia where Samsung will be releasing the flagship phones tomorrow, but the OTA update for the Australian variants is ready. This means that when users will get their phones and unbox it and connect to internet, they will get a notification asking them to download and install the update.