@@ -268,6 +268,12 @@ There are also two edge cases worth mentioning:
### `stage`
NOTE: **Note:**
By default, when using your own Runners, the GitLab Runner installation is set up to run only one job at a time (see the `concurrent` flag in [Runner global settings](https://docs.gitlab.com/runner/configuration/advanced-configuration.html#the-global-section) for more information).
Jobs will run in parallel only if:
- Run on different Runners
- The Runner's `concurrent` config has been changed.
`stage` is defined per-job and relies on [`stages`](#stages) which is defined
globally. It allows to group jobs into different stages, and jobs of the same
