What are different between Update Project and Pull command about Github in Android Studio 3.3.1?

Question

I use GitHub in my Android Studio 3.3.1 project.

There are similar icons next to both the menu items "Update Project..." and "Pull...".

What are different between Update Project and Pull commands in GitHub in Android Studio 3.3.1?

VCS Menu

Update Project

Answer 1

For projects stored in one version control repository, there is no difference. If a project contains modules stored in different version control systems or repositories, Update Project will update all of them, and Git | Pull... will update only a single one.