This fixes a defect of 0.9.11 Windows installer package. If you install from Windows installer and try to use TLS connection, you get an error that <mbed-tls> is undefined. It is because autoloading wans't set up properly.
This package fixes that. If you're using Gauche from Windows installer, you want to update. If you install Gauche from the tarball, you don't need to update, unless you want to configure with --with-tls=mbedtls-internal.