Which version of MySQL was used in your project or work experience?

The version of MySQL used in the project depends on specific requirements and infrastructure. In practice, versions from branches 5.7 and 8.0 are often used, as they are stable and widely supported.

For example, in my work experience, MySQL 5.7 was used for PHP projects because it provides good performance and compatibility with popular frameworks.

It is important to consider support for necessary features, security, and compatibility with the libraries used when choosing a version.