Denis developed a backward-compatibility mode for the Log integration in the elastic/integrations repository, introducing the allow_deprecated_use configuration option for versions 9.0.0 and above. This enhancement, implemented using YAML and configuration management principles, allowed customers to enable deprecated functionality without incurring breaking changes during upgrades. Denis updated the integration to version 2.4.1, ensuring that downstream deployments could adopt the new feature with minimal disruption. The work demonstrated careful versioned release management and clear traceability, reducing upgrade friction and clarifying the deprecation path for users. No bugs were addressed during this period, with focus placed on robust feature delivery.