The process is responsible for deploying and uploading the package to the Orchestrator environment, and for deploying already created packages. In UiPath Studio, we can search for Process inside the Orchestrator option available in the Activities panel. It contains a Should Stop activity that can be used to stop a process whenever required:

Processes assist in distributing all Packages over the Robot machine, which makes execution faster. We can assign jobs to these processes from the jobs panel available in the left corner in Orchestrator:

At every stage a package is linked to the environment and it is automatically distributed with each Robot machine that belongs to a particular environment. Whenever you make changes in the package you created earlier and upload those changes, it creates a new version of that package. Thus, in order to update your package, you can go to the Manage versions option available on that package and select the version of that package that you want to use:

If a new update to a certain package is available then an icon is displayed on that package.

When we are using the latest available version of a package with a specific process, then the icon  will show next to the process. All activities that we are using in Studio are stored in the NuGet feed that Orchestrator has access to. While we add a new process, the name of the environment should be the same as that of the Robot. This allows the execution of processes using respective Robots.