Hyphanet is a private peer-to-peer platform for publishing and communication
hyphanet.org
hyphanet.org
Basically Ian Clarke (Freenet's founder) started a new project called Locutus, whilst the original codebase/architecture continued under the Freenet name.
At a later date, Locutus changed its name to Freenet, whilst the original Freenet changed its name to Hyphanet.
Summary: If today you want to go with the original Freenet code/architecture, use Hyphanet. If today you want to go with the original Freenet founder, use Freenet.
I'd reccomend updating those screenshots. At least to match 2014 or something.
I understand that this is not some electron app to show off its UI but still...
Anything under "hyphanet" belongs to the old Java version, see https://freenet.org/ for the new version.
I had forgotten about that. How was the new Freenet different?
You may be thinking of "ghost keys" which aren't strictly part of the new Freenet but are complementary to it. You can find out more about ghost keys here: https://freenet.org/news/introducing-ghost-keys/