If you'd like to switch back to the old UI for various reasons. You can still do this following the steps below.
Switching to the Old UI:
1. Log in to your CircleCI dashboard
2. Navigate to your pipelines page. The URL is: https://app.circleci.com/pipelines/:VCS/:ORG_NAME/:PROJECT
* Note: Your VCS will be "github" or "bitbucket"
3. Click the "Old Experience" button on the bottom left of your screen (see image below).
Switching to the New UI :
1. Navigate to any of your jobs page's. The URL should look like : https://circleci.com/:VCS/ORG_NAME/PROJECT/JOB_NUMBER
* Note: your VCS will either be "gh" or "bb"
2. Click "Opt In" on the banner (see image below)