This repository is a long-running weekly newsletter archive (OSDT Weekly) for the Chinese open-source compiler and toolchain community. It aggregates and summarizes upstream development activity from GCC, LLVM, Binutils, GDB, glibc, QEMU, RISC-V, RT-Thread, and AI compiler projects, along with job postings and community event announcements. The content is entirely hand-curated Markdown files organized by year and date, with no executable code, build scripts, or automated pipelines. While it serves as a valuable historical record and community hub, it is not a software application or a traditional data research project with reproducible pipelines. The repository is actively maintained with weekly updates extending into 2026, but its reproducibility is low due to the lack of dependency management, structured data sources, or environment definitions.