Summary
Upgrading Pimcore from version 6.9 to 10.x can be a complex process, involving multiple steps and potential breaking changes. The official documentation provides a foundation, but additional changes such as deprecation and outdated packages may require extra attention. This article aims to guide you through the process, highlighting key considerations and lessons learned from similar upgrades.
Root Cause
The root cause of the challenges faced during the upgrade can be attributed to:
- Major version changes: Upgrading from 6.9 to 10.x involves significant changes to the core framework, leading to breaking changes and deprecation of certain features.
- Outdated packages: Dependencies and packages used in the older version may no longer be compatible or supported in the newer version.
- Insufficient documentation: While the official documentation provides a good starting point, it may not cover all possible scenarios or edge cases.
Why This Happens in Real Systems
This type of issue occurs in real systems due to:
- Technical debt: Accumulated over time, technical debt can lead to outdated dependencies and incompatible code.
- Complexity: Large-scale systems like Pimcore can be complex, making it difficult to anticipate and account for all potential breaking changes.
- Rapid development: The pace of development can lead to insufficient testing and inadequate documentation.
Real-World Impact
The real-world impact of a failed or incomplete upgrade can be significant, including:
- Downtime: Extended periods of downtime can result in lost revenue and damaged reputation.
- Data loss: Incompatible changes can lead to data loss or corruption.
- Security vulnerabilities: Outdated dependencies and unpatched vulnerabilities can expose the system to security risks.
Example or Code (if necessary and relevant)
// Example of deprecated code in Pimcore 6.9
$object = new \Pimcore\Model\DataObject();
$object->setKey('example');
// Equivalent code in Pimcore 10.x
$object = new \Pimcore\Model\DataObject\Concrete();
$object->setKey('example');How Senior Engineers Fix It
Senior engineers approach this type of upgrade by:
- Thoroughly reviewing documentation and release notes to identify potential breaking changes.
- Assessing technical debt and addressing outdated dependencies before starting the upgrade.
- Implementing automated tests to ensure compatibility and stability.
- Gradually rolling out changes to minimize downtime and risk.
Why Juniors Miss It
Junior engineers may miss these critical steps due to:
- Lack of experience with large-scale upgrades and complex systems.
- Insufficient knowledge of Pimcore and its dependencies.
- Overreliance on documentation, without considering edge cases and potential pitfalls.