During May 2025, cgithub@loudog.org focused on stabilizing SQL Server migrations within the hapifhir/hapi-fhir repository. They addressed a bug in the database migrator by refining the DropPrimaryKeyTask to correctly identify and handle multipart primary keys, ensuring alignment with SQL Server schema data. Their technical approach involved updating the relevant SQL queries and implementing an integration test, testDropAndAddPrimaryKeyTest, to validate the drop-and-readd behavior for multipart keys. Working primarily with Java and SQL, they improved migration reliability and reduced upgrade risk, contributing to stronger data integrity during schema changes. The work demonstrated depth in database migration and integration testing.