[Q] Nexus 5 rooted topic

I recently rooted my Nexus 5 to 4.4.2 from Chainfire, but I didn't think too much about it.

Now I wonder, what happens when the phone will want to update to 4.4.3 (or whatever the new version will be)?

Will it cause problems? Will it update without problems? Will I have to erase all data and flash the stock build?