This only affects backend deployment. Frontend deployment needs to be done separately at the moment. See the deployment article for more information.
You can use Deployment in the Developer area to deploy the backend of your project, roll back to a previous build, or view the deployment logs.
Click Developer on the dashboard:
Then click Deployment:
Once open, the information near the top of the screen is where you can find the current version that's deployed. For example:
Use the Deploy new version button to deploy the backend.
And then select the build you want to deploy from the list.
For more information on backend deployment, see the deployment article.
If you're experiencing any issues with your latest deployment, you can roll back to the previous build. Click the Rollback to <version number> button to do this.
By clicking the View deployment log button, you can see the logs from the current build version.