All Package Management Functionality Moved from Compiler to Build System
The Zig project has migrated all package management functionality from the compiler into the build system, as part of ongoing development efforts logged for June 30, 2026.
Background
- **Zig** is a modern systems programming language (like C or Rust) focused on simplicity, performance, and cross-compilation. It has no official release yet (still pre-1.0).
- **The Zig compiler** is the tool that turns Zig source code into executables. The **build system** is a separate component (run via `zig build`) that handles project configuration, dependencies, and tasks like "download libraries" or "run tests."
- Before this change, the compiler itself had built-in code for fetching and managing third-party packages (dependencies). That code has now been removed from the compiler and re-implemented as part of the build system.
- **Why it matters**: This is a deliberate design decision — keeping the compiler focused on compiling, making the build system the single place for dependency management. It reduces the compiler's surface area (simpler, fewer bugs) and makes the build system more flexible. For users, it means `zig build` is now the command for everything related to fetching and organizing packages.