Month: 2026-04 – Delivered two high-value outcomes across two repositories: a more resilient SDK release process in cumulocity-examples and comprehensive MQTT service documentation in c8y-docs. These efforts reduce release risk, improve developer experience, and provide clearer guidance for customers, enabling smoother onboarding and adoption.

March 2026 monthly summary for SoftwareAG/c8y-docs: Implemented Secure MQTT Basic Authentication with Role-Based Access Control, binding client connections to explicit user roles and requiring ADMIN for client ID binding to prevent spoofing. This work strengthens security posture for MQTT service, improves access control, and enhances traceability.

September 2025 (2025-09) — Key delivery: MQTT Service Java Client SDK deprecation and migration guidance in the SoftwareAG/c8y-docs repository. The deprecation communicates that the MQTT SDK will be replaced by direct connections to the Cumulocity IoT Messaging Service using the Apache Pulsar client protocol. Migration guidance and updated documentation include dates, clarifications, and formatting fixes to ensure a smooth customer transition. This work aligns with the product direction toward Pulsar-based messaging and reduces long-term SDK maintenance while improving onboarding for customers.

June 2025: Focused on documentation improvements for the Messaging Service in Cumulocity-IoT/c8y-docs. Delivered the 'Prerequisites and Activation Guide' that details required tenant subscriptions, user roles, and READ/ADMIN permissions for the messaging-management microservice, plus steps to enable and verify microservice subscriptions. These changes, driven by MTM-60162 and updated via code-review feedback, enhance onboarding, reduce support overhead, and accelerate customer activation. No major bugs were fixed this month; the work is primarily documentation-driven with traceable commits.

May 2025 monthly summary for Cumulocity-IoT/c8y-docs focusing on Messaging Service documentation enhancements and user guidance improvements. Delivered terminology clarification, updated core documentation, and added guidance on enabling preview features in the Administration app to improve user onboarding and reduce support friction.

April 2025: Delivered Messaging Service Documentation Enhancements and Backlog Management for Cumulocity-IoT/c8y-docs. Consolidated messaging service topics, backlog handling guidance for Notifications 2.0 and MQTT Service, and expanded subscribers and metrics explanations. Improved visual clarity with higher-resolution administration screenshots. Added comprehensive client-side error guidance for backlog quotas. The updates address user stories MTM-62669 and MTM-60162 and incorporate code-review feedback.