I doubt Google would be willing to do 30 minute release cycles. Like any large piece of code search needs to be tested before it is released, the tests alone p

I doubt Google would be willing to do 30 minute release cycles. Like any large piece of code search needs to be tested before it is released, the tests alone probably take 30 minutes to run. Google probably could not update their code more frequently than once a day. Risking breaking the search webpage is too high of a cost. On the other end ad blockers don't have to worry about lossing millions of dollars a second if they introduce a bug so they can respond much quicker.