Pro Updater: "Unknown error. Please wait 15 minutes and try again."

Some users are reporting seeing the following error when using the Comet Cache Pro Updater to upgrade Comet Cache Pro:

Unknown error. Please wait 15 minutes and try again.


It appears this is an issue with the version of cURL on some web hosts, so not all users are affected. We’re working to resolve the issue. If you’re seeing this error and need to upgrade Comet Cache Pro, you can manually upgrade following these instructions:

For technical updates to this issue, please see Issue #678.

I discovered this is caused by a bug in cURL versions < 7.36. See: ~ Further research is needed, but if you are able to upgrade cURL on your system that will fix you up.