In recent years, PHP has introduced significant improvements with version 8.2, such as stricter typed properties, readonly attributes, and better error handling. However, many legacy projects still run on versions 7.x or 8.0, and migration involves extensive refactoring and testing. What criteria do you consider essential when deciding whether to upgrade an existing codebase to PHP 8.2? Should you prioritize security and performance or stability and maintenance costs? I’d love to hear about real experiences, best practices, and potential pitfalls you’ve encountered when making this decision.
Is it advisable to migrate legacy applications to PHP 8.2 or stick with older versions?
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In our legacy project, we're using Doctrine 2. How does migrating to PHP 8.2 affect readonly attributes and type detection in existing entities? Also, what testing strategy do you recommend to minimize risks during the upgrade?