June 2026 monthly summary for riscv/sail-riscv: Key feature delivered and build-system enhancements to improve reliability and cross-tool integration. Implemented HOL4 Build Rule Extension and Sail/Lem integration, updated architecture-specific scripts, and added tooling to generate HOL4 definitions from Lem files. These changes align the build process with current Sail and Lem development versions, reduce manual steps, and enable reproducible builds for verification workflows.

May 2026 monthly summary focusing on delivering business value through cross-tool integration, release management, and robust test/coverage improvements across the Lem, Isabelle, Sail, and RISC-V toolchain.

March 2026 monthly summary for riscv/sail-riscv focusing on dependency cleanup to streamline builds and improve maintainability.

February 2026 (2026-02) monthly summary for riscv/sail-riscv: Delivered a focused refactor to standardize shift operations using Sail standard definitions, improving Isla symbolic execution compatibility and reducing edge-case handling for shifts by integer amounts. The change is captured in commit 7f37e03f4dd0abb44879e35e93bd1c45aa4b4183 and aligns the codebase with Sail conventions, setting the stage for more robust symbolic analysis and easier maintenance.

January 2026: Delivered Lean Build System Improvement by adopting a separate Sail support library for riscv/sail-riscv. This change decouples Sail dependencies, improving build reliability, dependency management, and reproducibility across development and CI environments. The update reduces maintenance burden when Sail updates occur and aligns with ongoing build-system modernization.

Month 2025-12 — Delivered Coq-Sail 0.20.1 release and packaging for coq/opam, enabling streamlined installation and distribution via opam. Implemented opam files for coq-sail and coq-sail-stdpp with explicit dependencies, build instructions, and package metadata. Release commit prepared and recorded.

Concise monthly summary for 2025-11 focusing on riscv/sail-riscv. Key build improvements and code quality enhancements delivered to strengthen build reliability, maintainability, and packaging readiness.

October 2025 (Month: 2025-10) focused on expanding Coq compatibility and strengthening packaging for the coq/opam repository, delivering two key features that enhance installation reliability and broaden the potential user base.

April 2025 monthly summary for riscv/sail-riscv: Delivered a major overhaul of the Rocq-based build system and expanded prover support, including Isabelle/Rocq integration in the RISC-V model and updated documentation and CI. These changes improve build reliability, reduce maintenance overhead, and broaden tooling compatibility for contributors and downstream users.

Month: 2025-03. Focus: packaging and distribution readiness for the Coq Sail packages in opam. Key feature delivered: opam packaging metadata for coq-sail and coq-sail-stdpp at version 0.19, including complete metadata (maintainer, authors, homepage, bug reports, documentation, license, repository, build and installation instructions, and dependencies). Major bugs fixed: none reported this month. Overall impact: enables reproducible builds, smoother downstream adoption, and easier maintenance for coq-sail packages. Technologies/skills demonstrated: OPAM packaging standards, metadata schema, dependency management, and versioned packaging.

January 2025: Implemented a streamlined Coq output and build pipeline for the Sail RISC-V model, delivering larger maintainability gains and faster verification cycles. Consolidated Coq output by removing architecture-specific RV32/RV64 files, integrated the stdpp library for Coq output, and pruned unnecessary Makefile options. All remaining model files were included in the Coq output to simplify the build process. This reduces build times, enhances reproducibility, and lowers onboarding friction for contributors. Commit reference: 5781cdeeb25868673bffa979a56481b575be7df7.