We're stirring it up topic-wise on this Tuesday, the first day of Spring in the northern hemisphere, with stories about autonomous vehicles, tvOS 11.3, a mock home setting where you can test HomeKit devices, and Apple's plans for even more office space in the South Bay Area:

• Apple has doubled its autonomous car fleet since January; we also look at the cause of Sunday's Uber autonomous car fatality
• Apple has released the sixth -- and probably final -- beta of tvOS 11.3 to developers
• London shoppers can try out a large HomeKit mock home setup at a new store in the Westfield London shopping center
• Think Apple Park and Apple Campus 3 are it for the company's real estate expansion? Just wait -- the company's plans in San Jose, California are unreal