Looking on the internet deeply has found these results:

I will update you is the most popular phrase on the web.

I update you 1118,000 results on the web	I will update you 1727,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I will update you when I know more. Just keep a lid on it until I update you on the status. Just keep a lid on it until I update you on the status. 'Did I update you on the Susie situation? Of course, yes, and I will update you on our position hourly. I'll update you on my meeting with Roman. Just keep the radio close, and I'll update you. I'll update you as soon as we have some more information.	I will update you when I know more. There have been no reports as to his whereabouts at this time, But we will update you as the controversy Surrounding this case continues to unfold. We're assessing his injuries now, and I will update you as soon as we know more. Of course, yes, and I will update you on our position hourly. Yes, I will give you an update when I know more. We will update you with any new developments. We will update you with any new developments. I will come out and update you every chance I get, though.

I update you

1118,000 results on the web

I will update you

1727,000 results on the web

More popular!

I will update you when I know more.
There have been no reports as to his whereabouts at this time, But we will update you as the controversy Surrounding this case continues to unfold.
We're assessing his injuries now, and I will update you as soon as we know more.
Of course, yes, and I will update you on our position hourly.
Yes, I will give you an update when I know more.
We will update you with any new developments.
We will update you with any new developments.
I will come out and update you every chance I get, though.