One of the fun things in the game has been the trading ships that hide away in Unidentified Signal Sources (USS). They would offer to trade items from your cargo hold for credits.
Often a surprise find when you were least expecting, and underused because either didn't have the cargo needed, or weren't inclined to investigate USS on a cargo run.
Not so much these days.
The USS has now been renamed and is visible in supercruise so you know what will be found when you drop in. These ships now advertise for your cargo and profits.
A nice touch to bring this little gem into the mainstream!