There were facts from DBZ which were meant to last forever, but since Dragon Ball Super is now running for more than half a year there are now a few things you can't say anymore...
New Fact #1: Piccolo was killed by Freeza
Well, on Namek Piccolo got hit by a beam right before Kuririn died for the second time. But he survived and got transported to Earth by Porunga.
But now in Super - which is different to the Fukkatsu no F movie - Piccolo got hit by Freeza in order to save Gohan. He died but is expected to be brought back to live with Namekian Dragon Balls.
Super Episode: 22
New Fact #2: Vegeta killed the whole Ginyu Force
As we know from DBZ, Vegeta first killed Guldo, then Recoome and Burter, which were first defeated by Goku. After a Senzu bean and a thereby gotten power-up the Saiyan prince managed to kill Jeice on its own. Ginyu, the only one left accidently changed his body with a frog.
After many years on Earth as a frog, Ginyu managed it to change with Tagomas body - only to be killed by Vegeta.
Super Episode: 23
To be updated...