how aem cloud instances upgraded

In AEM Cloud Service (AEMaaS), upgrades are handled differently compared to on-premises AEM. Here's a breakdown of how AEM Cloud instances are upgraded:

Automatic Updates:

  • AEMaaS employs a continuous integration and continuous delivery (CI/CD) pipeline for updates.
  • There are two main update types:
    • Maintenance Updates: Released frequently (daily or more) and focus on bug fixes, security patches, and performance enhancements. They have minimal impact and are applied automatically to production and staging environments.
    • Feature Releases: Delivered on a predictable schedule (e.g., monthly) and introduce new functionalities. These updates also undergo a rigorous validation process to ensure minimal disruption. While automatic in staging environments, you might have the option to schedule or approve feature release updates for production environments.

Benefits of Automatic Updates:

  • Reduced Downtime: Automatic updates minimize downtime associated with manual upgrades.
  • Improved Security: Regularly applied security patches enhance the overall security posture.
  • Simplified Management: Administrators don't need to perform manual upgrades, freeing up time for other tasks.

Validation and Rollback Mechanisms:

  • AEMaaS employs thorough validations before applying updates. This includes:
    • Code Quality Testing: Code quality checks to ensure no regressions are introduced.
    • Functional Testing: Functional tests to validate component and overall application behavior after the update.
    • Audit Testing: Reviews to confirm updates don't break custom code or configurations.
  • If an update fails validation or causes issues in the staging environment, AEMaaS can automatically roll back to the previous version.

User Involvement:

  • While some updates are fully automated, you (as the administrator) might have a role in the update process:
    • Scheduling or Approving Feature Releases: Depending on your configuration, you might have the option to schedule or approve feature releases for your production environment.
    • Pre-production Testing: You can thoroughly test upcoming feature releases in staging environments before deployment to production.

Key Takeaways:

  • AEM Cloud Service prioritizes a seamless and automated update process with minimal disruption.
  • Automatic updates ensure consistent security and functionality across environments.
  • Validation mechanisms and rollbacks help maintain system stability.

Additional Notes:

  • The specific update process and user involvement might vary slightly depending on your AEM Cloud Service provider and configuration.
  • Refer to your provider's documentation for detailed information and best practices for managing updates in AEM Cloud Service.

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