Essential Considerations for Upgrading to Drupal 11
Drupal Life Hack's recent blog post titled "Extended Review of Backward Compatibility Questions When Upgrading to Drupal 11" addresses key considerations for backward compatibility when upgrading to Drupal 11. The upgrade introduces changes like PHP 8.3 and MySQL/Percona 8.0 that require careful review. PHP 8.3 removes deprecated functions such as each(), demands stricter type enforcement, and introduces new features like read-only properties, which might break existing code.
MySQL 8.0 brings changes in SQL modes, character sets, and deprecated features, affecting database interactions. To ensure a smooth transition, developers need to update custom code, modules, and themes for compatibility.
The blog emphasizes the importance of testing in a staging environment, reviewing SQL queries, and staying updated with documentation. Additionally, it provides solutions for mitigating compatibility issues, such as using compatibility layers or seeking professional help. This comprehensive review guides developers in preparing for the upgrade while maintaining site functionality and performance.
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