DEC4200 series bios

[AdSchellevis]

Some people reported performance related issues with our DEC4200 series, which after investigation turned out to be a bios related issue.

A new bios has been released which addresses these concerns.

To download the latest version of the bios, please visit https://docs.opnsense.org/hardware/bios.html#dec4200-series
Installation instructions can be found in the same document as well.

Stay safe,

Your OPNsense team