This update brings the February 2019 security patch, improves device stability, new enhanced features. The update also improves. The update also updates camera stability, performance, and Fingerprint Recognition as well as the option to remap the Bixby button to launch any stock or aftermarket application — like Facebook, Google Maps, Instagram and Netflix.
According to SamMobile the update currently rolling out some european countries. The new update comes with software version G975FXXU1ASBA/ G975FOXM1ASBA/ G975FXXU1ASBA and the size of the update is 496.25 MB.
If you are still waiting, you can download the newest update build by going into Settings > Software updates and tapping on “Download updates manually”