We have updated the Windows binaries of these packages. Now, MPIR is at 2.7.2 and MPFR is at 3.1.5.
We have also built, but are not publishing here, MPIR 3.0 because it does not appear to make a reliable match with MPFR 3.1.5. However, we will supply it if a sensible reason is invoked.
This is a small free portable utility that updates the IPv4 end point for the Hurricane IPv6 Tunnel Broker.
If you are an user of the IPv6 Free Tunnel Broker and your OS is Windows this might be the utility you were waiting for. We have developed it simply because we are occasional users and other similar utilities appear dated and broken, or we just did not understand how to work with them.