mp++ 0.25

This is an incremental bugfix release that fixes a build issue on some platforms (e.g., FreeBSD) originating from calling GMP/MPFR/MPC macros with a leading ::. A small feature addition for the real class and a new interactive notebook are included as well.

As usual, the full changelog is available here:

https://bluescarni.github.io/mppp/changelog.html