facebook/zstd
Dec 2025 – Dec 2025
1 Month active
Languages Used
CC++PythonShell
Technical Skills
C/C++ developmentPython scriptingbuild automationbuild system configurationcross-platform developmentshell scripting
Yann Collet
PROFILE
Yann Collet
During December 2025, Cyan modernized the facebook/zstd repository by defaulting legacy format support to off across all major build systems, including Meson, Makefiles, Visual Studio, and BUCK. This transition streamlined build automation and reduced release risks while preserving explicit legacy support for backwards compatibility. Cyan implemented these changes using C, C++, and Python, updating test suites and shell scripts to validate both default and legacy-enabled builds. The work ensured cross-version interoperability by adjusting compatibility tests and fixing builds for older zstd versions. Overall, Cyan delivered a robust, maintainable solution that improved build consistency and facilitated adoption of newer formats.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
4Total
Bugs
0
Commits
4
Features
2
Lines of code
89
Activity Months1
Your Network
2659 peopleSame Organization
@meta.com2597
Peter RongMember
Zain RizviMember
Aahan AggarwalMember
Aliaksei AndreyeuMember
Arjun ChaturvediMember
Aaron PollackMember
Aaryaman SagarMember
Aashay GaikwadMember
Ajanthan AsogamoorthyMember
Work History
December 2025
4 Commits • 2 Features
Dec 1, 2025Month: 2025-12 — Focused on modernizing the Zstd codebase by defaulting legacy format support to off across all build systems while preserving explicit enabling to maintain backwards compatibility. This work stabilizes builds, reduces risk in release pipelines, and accelerates adoption of newer formats. Implemented across multiple build tools and validated through updated tests and cross-version compatibility checks. Overall, the month delivered a robust transition to a safer default, comprehensive test coverage, and cross-version validation to ensure interoperability with older frames without sacrificing modern performance and maintainability.
4 Commits • 2 Features
Dec 1, 2025Month: 2025-12 — Focused on modernizing the Zstd codebase by defaulting legacy format support to off across all build systems while preserving explicit enabling to maintain backwards compatibility. This work stabilizes builds, reduces risk in release pipelines, and accelerates adoption of newer formats. Implemented across multiple build tools and validated through updated tests and cross-version compatibility checks. Overall, the month delivered a robust transition to a safer default, comprehensive test coverage, and cross-version validation to ensure interoperability with older frames without sacrificing modern performance and maintainability.
December 2025
Activity
Loading activity data...
Quality Metrics
Correctness100.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CC++PythonShell
Technical Skills
C/C++ developmentPython scriptingbuild automationbuild system configurationcross-platform developmentshell scriptingtestingversion control
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline