OPC UA Security Policy: Doesn't appear Basic256 option

Hi there, when i create OPC UA server, the Security policy Basic 256 isn’t available, only appears basic128, its important to us to have the basic256 because of the excahnge of the certificates.
Could you please help me?

It looks like you’re making a connection to an Ignition OPC UA server from 7.9 or earlier. Versions before 8.0 did not allow the SecurityPolicy choices offered by the server to be configured.