URL：https://res.cloudinary.com/hy4kyit2a/f_auto,fl_lossy,q_70/learn/modules/marketing-cloud-releases/review-the-release-lifecycle/images/46a175f1ea69588d73770218bf5df021_release-schedule-update.png
掲載元：https://trailhead.salesforce.com/content/learn/modules/marketing-cloud-releases/review-the-release-lifecycle
