Driver version - latest OFED driver is v4.3-3.0.2, built-in is v5.0.0

Infrastructure & Networking Adapters and Cables Ethernet Adapter Cards
1

CentOS 7 shows mlx5_core is v5.0.0.

I download and install the latest MLX OFED driver and now the version is 4.3.

Did I downgrade the driver? Or are OFED versions different from built-in (and how)?