May 2026 monthly performance summary for chipsalliance/caliptra-mcu-sw: Delivered substantive SPDM/VDM and SPDM infrastructure improvements that optimize memory usage, improve command handling reliability, and enable mode-aware operations. The work enhances security posture, improves manufacturing/production workflows, and reduces runtime memory footprint, supporting multiple SPDM transports and a broader deployment footprint.

Concise monthly summary for 2026-04 focusing on key features delivered, major bugs fixed, impact and accomplishments, and technologies demonstrated. Highlights across two repositories include API-level security identity improvements (Attested CSR), attestation workflow refinements, test reliability enhancements, and maintainability improvements. Business value: stronger device identity, robust attestation across FPGA and emulator test environments, faster CI feedback loops, and reduced risk in firmware component configuration.

March 2026 accomplishments focused on security hardening, integrity verification, and automated attestation. Delivered secure key provisioning and attestation features across chipsalliance/caliptra-sw and chipsalliance/caliptra-mcu-sw, with a strong emphasis on test coverage, documentation, and automation to reduce risk and accelerate deployment.

February 2026 — Key accomplishments for chipsalliance/caliptra-sw include delivering advanced CSR workflows with DICE extensions, ECC384 support, and MLDSA87 integration, enabling production-ready certificate generation and attestation. Also introduced TaggedOid CBOR encoding for a more concise evidence map. These changes improve security posture, reduce certificate and attestation payload sizes, and streamline device identity management.

January 2026 monthly performance focused on delivering secure device identity provisioning, robust token encoding, and reusable encoder support across Caliptra projects. The work enhances in-field provisioning reliability, strengthens attestation security, and reduces maintenance overhead by consolidating encoding workflows and removing unused components.

December 2025: Delivered SPDM security/robustness improvements and chunked transfer support in chipsalliance/caliptra-mcu-sw. The SPDM update aligns the EAT encoder with OCP specs, strengthens nonce handling, and streamlines session/algorithm validation. Chunked transfer for measurements and certificates enhances transfer efficiency for large payloads in constrained environments. These changes improve security posture, reduce transfer overhead, and improve compatibility with OCP-driven ecosystems.

November 2025 delivered meaningful feature and reliability improvements across caliptra-mcu-sw and caliptra-sw, with a strong emphasis on CI/CD quality, secure attestation, and robust manifest handling. Highlights include integration-test-driven CI/CD enhancements, expanded SPDM-related tooling support, new MCTP command capabilities, and stronger storage/manifest consistency. Overall impact: accelerated validation cycles, improved security posture, and greater cross-repo reliability, enabling faster delivery of secure firmware and trusted runtime components.

October 2025 monthly summary focusing on key accomplishments across chipsalliance/caliptra-mcu-sw: Enhanced Device State Querying, Firmware Metadata Embedding in Build, and Modular SPDM Measurements. These efforts improved runtime visibility, auditability, and maintainability, with tests and configurations updated accordingly.

September 2025 monthly summary for chipsalliance/caliptra-mcu-sw: Delivered key features across SPDM and MCU stack, expanded vendor-defined messaging, and broadened protocol support, while strengthening testing and cryptographic validation. The work improves interoperability with external vendors, accelerates certification, and enhances device security through SPDM secure sessions, TDISP support, and ECDSA validation. Key outcomes include SPDM VDM framework enhancements with IDE-KM integration, SPDM Secure Session enablement, MCU TDISP protocol support, and ECDSA testing coverage.

Month: 2025-08 — Development focus centered on strengthening security posture, conformance readiness, and reliability in the chipsalliance/caliptra-mcu-sw project. Delivered standardized IDE/key management interfaces, advanced SPDM session handling with robust cryptography, conformance workflow improvements, and MCTP reliability enhancements to improve system robustness and business value.

Concise monthly summary for 2025-07 focused on the chipsalliance/caliptra-mcu-sw project. Delivered core DOE transport capabilities, expanded DOE testing and discovery infrastructure, SPDM cross-transport support (DOE/MCTP) with emulator integration, and CI/test enhancements. Result: improved interoperability, end-to-end DOE messaging, and stronger validation coverage across the MCU software stack.

June 2025 monthly summary for chipsalliance/caliptra-mcu-sw. Focused on delivering SPDM over DOE capabilities, establishing a testable DOE transport stack, and improving emulator reliability, while enhancing maintainability through architectural documentation and code organization.

May 2025 performance summary for chipsalliance/caliptra-mcu-sw focusing on provisioning robustness, platform reliability, and firmware delivery improvements. Delivered a set of structural and functional enhancements to accelerate provisioning, increase reliability, and streamline firmware updates, enabling faster time-to-value for customers and easier long-term maintenance.

April 2025 monthly summary for chipsalliance/caliptra-mcu-sw focusing on delivering cryptographic features, transport abstraction, and API modernization to increase security, maintainability, and delivery velocity. Key outcomes include SHA hashing support, SPDM transport abstraction via a generic trait, and MCU runtime API simplification plus firmware reorganization. No major bug fixes were recorded in this period; emphasis was on feature delivery and code health. These changes enable faster secure feature delivery, easier integration with new backends, and a more maintainable MCU runtime.

March 2025 monthly summary for chipsalliance/caliptra-mcu-sw: Delivered SPDM core integration and capability negotiation to enable secure device communication and interoperability with SPDM-enabled hosts. Implemented a SPDM app/lib stack with support for GET_VERSION, GET_CAPABILITIES, and NEGOTIATE_ALGORITHMS. Fixed validator test failures for SPDM GET_VERSION by updating CI workflow and enabling the validator test, improving test reliability. This work strengthens the MCU software security posture, accelerates secure provisioning, and enhances interoperability with security-aware ecosystems.

February 2025: In caliptra-mcu-sw, focused on strengthening test infrastructure for MCTP by refactoring tests to use shared utilities and introducing the MctpUtil module to centralize MCTP operations. Renamed several MCTP-related types and structs to improve clarity. No major bugs fixed this month; the work prioritizes faster validation and reduced regression risk through a more maintainable test framework. This groundwork supports easier onboarding for new contributors and more consistent test results.

January 2025: Delivered MCTP userspace library support and drivers for MCTP message types in chipsalliance/caliptra-mcu-sw. Refactored MCTP interfaces for maintainability and added emulator/runtime support, with end-to-end tests. This work enables applications to send/receive MCTP messages via a stable userspace API and lays groundwork for future protocol extensions, accelerating integration with downstream systems and reducing development risk.

December 2024: Key features delivered and testing enhancements for the MCTP stack in caliptra-mcu-sw. Delivered foundational MCTP framework and protocol support, enabling SPDM/PLDM and vendor PCI MCTP via a new syscall driver; Implemented MCTP Mux/transport binding and control message handling. Expanded product reliability with a dedicated MCTP testing framework including control command tests and loopback validation across varying packet sizes. These efforts establish a robust, interoperable MCTP stack for MCU software, reducing integration risk with host firmware and enabling secure vendor-specific capabilities. Overall impact: Accelerated enablement of MCTP-based interoperability, improved test coverage, and a clear path to SPDM/PLDM/vendor protocol support in production stacks.

November 2024 focused on establishing the foundation for MCTP over I3C in the MCU software stack. Delivered the first-draft MCTP stack design documentation, detailing the architecture, receive and send sequences, user-space syscalls, and a layered communication model. The work provides a concrete baseline to guide upcoming implementation and hardware integration, enabling more predictable delivery and reduced risk for cross-team milestones. A single, well-scoped commit captures the design intent and aligns with repository standards.