January 2026 monthly summary for google/gvisor: Focused on strengthening the runtime test infrastructure through a Bazel runfiles enhancement and related fixes to improve test reliability, cache correctness, and CI feedback.

September 2025 focused on modernizing the build system, stabilizing dependencies, and accelerating test cycles for google/gvisor. Key work includes a Bazel build system modernization with a complete Bzlmod migration (removing legacy WORKSPACE, enabling bzlmod in .bazelrc, and aligning MODULE.bazel), Go dependency management and gRPC upgrades to improve stability and compatibility, test reliability enhancements with caching to speed up CI, and a Docker-based Go toolchain upgrade to support newer toolchains. These efforts reduce maintenance overhead, shorten build and test times, and improve portability across environments.

Concise monthly summary focusing on the k3s-io/runc work for 2025-03. The primary focus was stabilizing time namespace behavior for containers undergoing CRIU checkpoint/restore, ensuring post-restore processes are correctly placed within the container’s time namespace and reducing restore-time failures.

Month: 2022-04 focused on delivering CI automation for the runsc build in SagerNet/gvisor, enabling faster feedback and reliable artifacts for testing. The implementation supports continuous integration by building the runsc binary on every push and makes build artifacts readily available for testing workflows.