October 2025 monthly performance summary for phnx-im/infra. Focused on reliability, resilience, and clarity in the infra stack. Implemented extended past-epoch decryption for delayed messages, improved MLS ratchet robustness, reduced notification noise, and completed a transactional database refactor for resilient data operations, alongside branding migration from 'phnx' to 'air'. These changes delivered measurable business value: higher message delivery success in delayed processing, lower user notification fatigue, improved operational robustness, and cleaner branding across configurations and deployments.

September 2025 focused on security hardening, maintainability, and deployment reliability in phnx-im/infra. Delivered TLS serialization standardization across modules with TLS codecs and payload optimizations, renamed infra/phoenix to air for naming clarity, removed legacy compatibility code and consolidated versioning, strengthened security by injecting the ConnectionOffer hash as a PSK into the connection group, and upgraded MLS to OpenMLS 0.7.1 with the new mls-assist module. Also pursued migrations consolidation and prep for stable CI/CD, setting the stage for safer releases and easier future evolution.

July 2025 for phnx-im/infra focused on security hardening, API standardization, and migration readiness. Delivered: (1) Secure Connection Package model with per-package decryption keys, removal of ClientCredential, and backward-compatible ConnectionPackageV1, with DB storage, retrieval, and SQL migrations; (2) Hashing API standardization via a generic Hashable trait and Hash type, preserving legacy behavior; and (3) integration of identity-related fields (UserHandleHash and HandleVerifyingKey) to strengthen authentication. These changes enable safer key management, smoother upgrades, and a more maintainable codebase.

June 2025 – phnx-im/infra: Key feature delivered to strengthen secure connection establishment. Introduced ConnectionOfferMessage to include the hash of the ConnectionPackage used during the handshake and implemented signing/verifying of this hash to improve authentication, security, and integrity of the connection process. This reduces the risk of tampering during onboarding and enhances auditability across the infrastructure layer. No major bugs were reported in this period. Commit reference: 14271f600834740daaf3e940daaaf94f11d8682d (feat: improved authentication during connection establishment (#575)).

May 2025 Infra: Delivered a solid set of identity, security, and onboarding enhancements in phnx-im/infra, with emphasis on robust profile management, data consistency in group chats, and stronger cryptographic protocols. Established stronger foundation for scalable identity and group interactions, with an expanded test surface to reduce regressions.

April 2025 monthly summary for phnx-im/infra: Delivered core user profile management capabilities and a security-focused refactor of cryptography and KeyPackage handling. These efforts improve data integrity, security, and maintainability while enabling scalable user profiling across services.

February 2025 monthly summary: Delivered key features and bug fixes across two repositories, focusing on CI reliability, API client/backend modernization, and cryptographic correctness. This enabled more stable builds, safer data handling, and a simpler, more maintainable codebase with faster release cycles.

January 2025: Delivered two infrastructure features in phnx-im/infra that boost API stability and security. Unified group operations behind a single endpoint and migrated to MIMI-style pseudonymous credentials across API clients, backend services, and core client logic, replacing the infra-credential approach and reducing surface area.

November 2024 monthly summary for phnx-im/infra: Implemented a TLS-enabled PostgreSQL test environment, added certificate generation and secure test harness refinements, and delivered a bug fix for post-commit group update message handling in the core group module. These changes improve CI security, reliability, and correctness, while aligning with upstream OpenMLS changes.