Mickael Plassard updated the MySQL Primary Key Requirement documentation in the Scalingo/documentation repository to reflect new constraints introduced in MySQL 8 and above. He clarified the mandatory nature of primary keys for these versions and provided a practical example SQL statement using Markdown to guide users in adding a primary key. By refreshing the modification date and linking the update to a specific commit, Mickael ensured traceability and improved maintainability. His work focused on documentation accuracy, helping reduce integration risks and onboarding friction for customers upgrading to MySQL 8+. The contribution was documentation-focused, with no bug fixes during this period.