The version 1.0.7 of Swift Explorer has just been released. The release notes succinctly outlines the changes.

In short, it appears that some unannounced changes regarding the SSL certificate on the hubiC’s servers occurred a few weeks ago, resulting in the impossibility to login. This new version implements a temporary fix for this issue.

The installers for the Windows OSs are not ready yet. They will be available as soon as possible. Meanwhile, the executable jar file offers an immediate alternative.