October 2025 monthly summary for companieshouse/psc-extensions-web: Stabilized the extension submission workflow by reverting changes from PR #83, restoring critical constants, next-page URL handling, and the core submission/transaction/error logic in ReasonForExtensionHandler. Updated tests to align with restored behavior; ensured no regression in the submission flow and preserved downstream integration points.

March 2025: Focused modernization, reliability, and scalability of the CHS notification pipeline. Delivered Avro-based schema updates and timestamp handling, launched a unified Kafka-based notification system, fixed API startup issues, expanded tests, and improved observability. These changes enhance data integrity, delivery reliability, and developer productivity, positioning the notification platform for growth.

February 2025 focused on delivering scalable notification delivery capabilities and strengthening observability, security, and process governance for the Notification Sender API. Implemented a Kafka-based serialization and translation layer for notification messages (emails and letters), integrated with a translator module and Avro configuration, and expanded test coverage. Enhanced observability and security with API call interceptors and standardized PR processes to improve code review efficiency and quality. These efforts collectively enable reliable, scalable delivery of notifications via Kafka topics, improved security posture, and stronger development discipline across the team.