May 2026: Focused on code quality and deployment resilience across two repositories. Delivered linting and type-safety improvements in hiero-json-rpc-relay, tightened CI checks, and introduced a migration failure recovery mechanism in hedera-sourcify with supporting configuration and workflows. These changes reduce defect risk, improve maintainability, and boost deployment reliability, aligning with business goals of faster, safer releases.

Monthly summary for 2026-04 focused on performance and scalability improvements in the hiero-json-rpc-relay service by offloading balance retrieval to a dedicated worker. This reduces main-thread contention and sets the groundwork for future worker-based task distribution, enhancing throughput under concurrent usage.

2026-03 Monthly Summary — hiero-json-rpc-relay Key outcomes: - Security hardening: Mask MIRROR_NODE_URL_HEADER_X_API_KEY in logs and config endpoints to prevent sensitive data leakage, reducing exposure risk across the relay surface. - Documentation improvement: Updated transaction pool docs to reflect use of RLP-encoded transactions (not tx hashes), clarifying management and resubmission workflows. - Gas limit flexibility: Introduced version-based calculation for blockGasLimit (based on HAPI version) to improve efficiency and compatibility with protocol changes. Major fixes and deliverables: - Implemented masking fix for /config endpoint to ensure consistent security across logs and responses (commit 0c744d6ca8569cb855156c4fc072146922f8d15b). Impact and value: - Security: Lowered risk of credential leakage in operational logs and responses. - Maintainability: Clearer docs reduce onboarding time and support overhead. - Reliability and performance: Version-aware gas limit determination enhances relay performance under evolving protocol conditions. Technologies and skills demonstrated: - Secure logging practices and data privacy controls - Documentation discipline and alignment with implementation - Version-aware feature toggling and config-driven behavior Repository: hiero-ledger/hiero-json-rpc-relay Month: 2026-03