> 1)  If you were using USE_KERBEROS4=yes you will now need to
>     set KERBEROS=4 instead.
> 
> 2)  If you were using USE_KERBEROS5=yes you will now need to
>     set KERBEROS=5 instead.

What if you want to use both? I believe fetchmail has both krb4
support (for kpop) and krb5 support (for imap). And people at sites
that are transitioning from krb4 to krb5 (like MIT) might want to use
krb5 with the packages that support it, and krb4 with the packages
that only support that.

-- Dan