WikiLeaks founder Julian Assange won the right to challenge a British court’s decision to extradite him to the U.S. to face espionage charges
Emphasis mine, since the headline is poorly worded. He didn’t win an appeal, the court agreed that he can appeal. He still could be shipped off to the US and then eventually <blacksite prison name not found>.
Smart IT departments do this with Windows upgrades too. Even though Microsoft is usually very good about backwards compatibility, it’s always smart to test these things before you upgrade 500 computers.