May 2026 monthly summary for facebook/folly: Delivered CentOS 9 build compatibility for folly.symbolizer fbpkg by replacing -static-libstdc++ with lld-native linker flags, enabling successful builds on aarch64 and x86_64. Adjusted linker flag handling to align with fbcode patterns, ensuring -Xlinker wrapping passes correct ld flags. Fixed a long-running folly.symbolizer fbpkg conveyor issue that blocked packaging since May 1. These changes stabilize CI, improve cross-distro packaging, and reduce operator toil. Related work tracked in Differential Revision D104310136; commit 5a3ecbcca9ce33592c3d37896d30c2b054a3c84e and fbshipit-source-id: 342f9cf9cc602afba2d2d4d90cdc04aaf9e79a12.

October 2025: Key fix to Python wheel loading by dynamically including native dependencies in the link graph. Expanded the omnibus search space to account for native libraries loaded by Python, updated the python_wheel.bzl _impl to include these dependencies via SharedLibraryInfo, and ensured proper recognition of libraries loaded through torch.ops.load_library. This work reduces runtime errors and improves reliability of wheel-based deployments in Buck2-prelude, contributing to more stable PyTorch-related workflows and faster onboarding for downstream users.

August 2025 (facebook/buck2-prelude): Consolidated a critical bug fix to eliminate flaky dwp actions by ensuring all hidden dependencies are included in the final link. The change updates cxx_gnu_dist_link to dynamically reference these dependencies, addressing regressions caused by cache hits on late-stamped, local-only actions. Result: more stable builds, fewer flaky failures, and improved determinism in the Buck2 Prelude pipeline.

Month: 2025-01 — Focused on stabilizing core behavior and build reliability across two repos by reverting a third-party hashing path and fixing Bazel native.bzl loading, enabling downstream teams to rely on deterministic outcomes and smoother releases.