Goldcoin Core v0.14.4 has been released which includes a very important security fix for a DoS vulnerability!
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer (on Windows).
Download links:
https://www.goldcoin.org/downloads.htmlAll users are advised to upgrade as soon as possible. Submit any issues you encounter here and one of the Goldcoin developers will assist you.