https://wccftech.com/msi-rolls-out-agesa-1-1-9-0-bios-firmware-for-x570-b550-motherboards-intros-curve-optimizer/

MSI has started rolling out the latest AGESA 1.1.9.0 BIOS firmware for its AMD 500-series chipset (X570 & B550) based line of motherboards. The latest BIOS will introduce support for AMD's Curve Optimizer tech and also improves Ryzen 5000 CPU stability.

MSI confirmed that it has initiated the first phase rollout of its new X570 & B550 BIOS based on the AGESA 1.1.9.0 firmware. The AGESA 1.1.9.0 is the official BIOS firmware that will enable support for AMD's brand new Curve Optimizer feature. In addition to the Curve Optimizer feature support, the BIOS also fixes compatibility issues with NVIDIA cards when enabling Resizable BAR. Although there is no official support for BAR at the moment from NVIDIA motherboard makers have supported the feature on their Intel & AMD current-gen products.