Upgrading from CSRFGuard 3 to 4

[Ulf Dittmer]

Hi-

I'm the maintainer of an open source project that uses CSRFGuard 3.1, and want to upgrade it to version 4. I found that it's not a drop-in replacement of the jar file, resulting in a number of compilation errors, specifically about missing methods in the CSRFGuard class (getTokenValue, updateTokens, writeLandingPage, isValidRequest). I tried to find upgrade instructions, but came up empty. Do those exists somewhere? Or can someone point me to other information relevant to upgrading?

Thanks!

Ulf