What steps should you take before applying a Sitecore update?

Before applying a Sitecore update, it is crucial to take the necessary precautions to ensure a smooth and successful upgrade process. Backing up the installation and databases is essential because it allows you to restore your system to a previous state if anything goes wrong during the update. This safeguard can prevent data loss and minimize downtime.

Reviewing the release notes is another important step. Release notes typically outline new features, improvements, bug fixes, and any breaking changes associated with the update. Familiarizing yourself with this information helps in planning for potential adjustments necessary in your current implementation after the update is applied.

Testing the update in a non-production environment is a best practice that allows you to identify and resolve any compatibility issues or errors before affecting the live environment. This step minimizes risks and assures a smoother transition when the update is ultimately applied to the production system.

Together, these steps ensure that you are adequately prepared to handle the update process, making option B the most thorough and proactive approach to applying a Sitecore update.