ikhcoin Core version 0.16.0 is not available for security reasons:

https://ikhcoincore.org/bin/ikhcoin-core-0.16.0/

This is a new major version release, including new features, various bugfixes and performance improvements, as well as updated translations.

Please report bugs using the issue tracker at GitHub:

https://github.com/ikhcoin/ikhcoin/issues

To receive security and update notifications, please subscribe to:

https://ikhcoincore.org/en/list/announcements/join/