A few days ago, in a comment on a different topic, I wrote something along the lines that California had not adopted the Model Rules...
Well, that's not true anymore!
The California Supreme Court announced today that it has adopted 69 new rules of professional conduct patterned on the ABA Model Rules.
Here is a press release and the court's order.
And here is a table that correlates the California rules in place until today and the new ones.
UPDATE 5-11-18: Here is a link to the new rules.