We use OpenAuthAuthentiocation.dll
and get the following warning:
Raising minimum OpenID version requirement for Providers to 2.0 to protect this stateless RP from replay attacks
How can we fix it? How can I make this warning disappear?
You can make the warning disappear by raising the minimum OpenID version requirement for Providers to 2.0 yourself in your configuration file[semi-dead link].
<dotNetOpenAuth>
<openid>
<relyingParty>
<security minimumRequiredOpenIdVersion="V20" />
</relyingParty>
</openid>
</dotNetOpenAuth>
The effect is the same on your RP, but since you're doing it yourself, DotNetOpenAuth won't warn you that it is doing it for you.