From the official Windows blog:
Fast – Best for Insiders who enjoy being the first to get access to
builds and feature updates, with some risk to their devices in order
to identify issues, and provide suggestions and ideas to make Windows
software and devices great.
Slow – Best for Insiders who enjoy getting early access to builds and
feature updates, with less risk to their devices, and still want to
provide feedback to make Windows software and devices great.
Release Preview – Best for Insiders who enjoy getting early access to
updates for the Current Branch, Microsoft applications, and drivers,
with minimal risk to their devices, and still want to provide feedback
to make Windows devices great.
Production is, to my understanding, the default set-up. Think of it as stable. To answer your question:
If I choose Insider Release or Production, I will stop receive new updates from Windows 10?
In all options you will receive updates. What changes is the frequency. Starting from top (fast) with the most frequent updates and going to bottom (Production) with the least frequent updates. More frequent updates means more untested waters so possible bugs. You get to decide how much you care about bleeding edge. I personally use slow.