May 2026 Monthly Summary for OpenXiangShan/XiangShan-doc. Focused on delivering the Biweekly XiangShan Report Issue 101 across frontend and backend, including optimizations and bug fixes, with clear documentation and cross-team collaboration to improve transparency and decision-making.

April 2026 — OpenXiangShan/XiangShan-doc: Delivered two major documentation initiatives to strengthen the XiangShan RISC-V architecture and XiangShan AI (XSAI) roadmap. These updates enhance onboarding, reduce knowledge transfer time, and provide a reliable reference for architecture decisions and AI capabilities. No major bugs fixed in this repository this month; focus was on improving documentation quality and developer onboarding. Work aligns with the biweekly release cadence (#243 and #244) and was executed through two coordinated commits with multiple authors and standard sign-offs, reflecting disciplined collaboration and documentation excellence.

Concise March 2026 monthly summary highlighting delivered features, major bug fixes, impact, and skills demonstrated. Focused on business value and technical achievements across three repositories: OpenXiangShan/XiangShan-doc, OpenXiangShan/XiangShan, and OpenXiangShan/Utility.

February 2026 monthly summary for OpenXiangShan projects. Focused on enhancing performance validation and project visibility across XiangShan repositories. Delivered streamlined nightly performance testing workflow improvements and updated biweekly reporting to reflect developments, optimizations, and performance evaluations. No major bugs logged in the provided data. Business value delivered includes faster performance feedback, more reliable benchmarking, and stronger cross-team collaboration through improved documentation and reporting.

January 2026 monthly summary: Across OpenXiangShan/XiangShan-doc, XiangShan, and GEM5, delivered measurable business value through enhanced performance evaluation transparency, CI/workflow improvements, modularity enhancements, and Python ecosystem compatibility. Highlights include expanded performance reporting coverage for Kunminghu V3 SPEC CPU2006, and CI-friendly workflow changes that accelerate regression analysis, bug identification, and feature validation. Strengthened system reliability and maintainability via submodule governance and secure interrupt handling upgrades.

December 2025 monthly summary for OpenXiangShan/XiangShan and XiangShan-doc focusing on reliability improvements, performance visibility, and stakeholder communication. Delivered critical bug fix in ResolveQueue redirect handling with a backend redirect delay to ensure accurate branch resolution and flushing, and introduced a comprehensive performance monitoring stack with perfQueue and metrics for branch predictor and commit paths. Enhanced CI with performance regression tests and resource optimizations (thread count tuning and 8-core CI). Documented the XiangShan V2 to V3 transition in XiangShan-doc to communicate developments, performance improvements, and frontend/backend optimizations.

November 2025: Delivered targeted hardware-software improvements across XiangShan features to boost branch prediction accuracy, frontend processing efficiency, and queue reliability, with ongoing documentation of progress for stakeholder visibility. The work reduced stalls and improved throughput while maintaining correctness under complex control-flow scenarios.

Month: 2025-10 — Delivered XiángShan Biweekly Updates and Tutorial Documentation Improvements by consolidating updates 86 and 87 into OpenXiangShan/XiangShan-doc, covering frontend, backend, memory/cache, bug fixes, new RTL features, and performance evaluations. Updated tutorials for MICRO'25 and HPCA 2026 (schedule refinements, startup instructions, navigation integration). Major bugs fixed: addressed within the biweekly update scope; no separate bug-fix milestone is listed in this data. Overall impact: stronger release cadence, clearer progress visibility, and improved onboarding through up-to-date documentation and tutorials. Technologies/skills demonstrated: documentation engineering, release management, cross-functional collaboration, RTL feature tracking, and performance evaluation methodologies.

September 2025 monthly summary for OpenXiangShan/XiangShan-doc: Delivered the XiangShan Compiler Collection (XSCC) release with SPEC 2006 performance benchmarks and published the 85th biweekly XiangShan report. The release involved cross-team collaboration across frontend, backend, and memory/cache groups, and includes performance data compiled with XSCC, along with related links and contributor information. No major bugs were reported this month; efforts focused on release engineering, benchmarking, and documentation to strengthen transparency and decision making.