The companies had challenged the strict ABC test implemented following the Dynamex decision. Looks like AB5 and slight modifications made to it by AB 2257, will continue to be the prevailing rule. Employers conducting business in California and those insuring them should continue to use extra care when attempting to classify workers as independent contractors. 

https://www.reuters.com/article/employment-california-idUSL2N2GI1C6

https://www.freightwaves.com/news/uber-postmates-driver-loses-court-challenge-to-californias-ab5-law