Worked on enhancing the Fritz integration within the home-assistant/core repository by upgrading the FritzConnection library from version 1.14.0 to 1.15.0. Focused on Python package management and dependency management, the update was applied consistently across both runtime and test requirements to ensure stability and compatibility. This proactive approach reduced maintenance risk and aligned the integration with the latest FritzConnection features and fixes. By synchronizing core and test environments, the work prepared the project for upcoming Fritz API changes, supporting future enhancements. No major bugs were addressed during this period, with efforts concentrated on long-term reliability and maintainability.