Worked on the linq2db repository to migrate its ClickHouse database integration from the deprecated ClickHouse.Client to the officially supported ClickHouse.Driver. This effort involved updating C# code to reflect new namespaces, assembly names, and provider configurations throughout both the main codebase and associated test suites. The migration focused on code maintenance, package management, and database integration, ensuring continued compatibility with upstream ClickHouse developments. By aligning with the supported driver, the work reduced future maintenance risks and simplified upgrade paths for users. No bugs were reported during this period, and all changes were consolidated into a single, well-documented commit.