October 2025: Hermes delivered two high-impact initiatives that drive business value and technical resilience. Athena Core Refactor and Build/Logging Modernization standardizes shared types and functions across Athena modules, updates dependencies, refactors the WASM build process to use a unified target, and unifies logging across Athena and Hermes WASM bindings, including http-proxy improvements. The Staked-ADA Indexer Module introduces a new stake indexing pipeline, creates database tables for stake registrations and transaction outputs, and integrates with Cardano's block subscription service to process blockchain events, enabling reliable stake-related data analysis. Together, these efforts reduce maintenance burdens, improve build stability and observability, and provide a solid foundation for downstream analytics and feature delivery.

2025-09 Hermes monthly summary: Key feature delivered: Hermes WASM runtime robustness improvements and binding generation update, including unchecked_exports module, robust event handlers for WASM function lookup/calls, removal of unused WASI HTTP imports, and updated example WASM components to the new binding generation approach. Note: no major bugs fixed this month. Impact: increases runtime reliability, reduces maintenance burden, and accelerates safe adoption of WASM components in downstream projects. Technologies/skills demonstrated: Rust code refactoring, WASM binding generation, runtime architecture improvements, and code cleanup.

July 2025 performance summary: Focused on stabilizing the build and dependency pipeline, expanding WASM capabilities, and upgrading core toolchains across catalyst-ci, Hermes, and catalyst-libs. Delivered cross-repo improvements that improve stability, security posture, and developer productivity for WASM-based workloads. Key outcomes include hardened build workflows, graceful WASM shutdown and standalone playground capabilities, and up-to-date dependencies and toolchains across the stack.

June 2025 – Hermes (input-output-hk/hermes): Key upgrade of Wasmtime to 33.0.0 with runtime feature enablement, plus documentation and bindings adjustments. This work broadens runtime compatibility for standard usage (runtime, cranelift, component-model) and enables development dependencies via wat. Implemented small Cargo.toml syntax fixes, updated doc comments to use f64, and refined WIT bindings to include trappable_imports. No critical bugs detected; fixes and refinements shipped with a single commit. The changes improve runtime stability, developer experience, and deployment readiness by ensuring a consistent runtime stack and clearer APIs.

May 2025 monthly summary for catalyst-libs: Strengthened security-related key handling in RBAC CIP509 certificates and streamlined dependency management to improve reliability and developer productivity. Delivered targeted refactor in CIP509 extraction, added explicit error handling, enhanced validation, and increased test coverage. Updated dependencies to 3.6.0 for orx-concurrent-vec, removing an unnecessary transitive dependency. Overall, these changes reduce risk in production RBAC flows and simplify future maintenance.