April 2026: Delivered MCAP v2.1.3 integration into Bazel Central Registry for the bazel-central-registry repository. Registered the MCAP C++ library v2.1.3 to enable downstream projects to depend on the latest version with additive improvements and improved compatibility. Key build and cross‑platform fixes include adding a visibility guard (#ifndef MCAP_PUBLIC) to support header-only usage in shared libraries, enabling GCC -Wshadow fixes, and Windows FileReader support for large files. Fixed a bug around schemas without messages and preserved API compatibility from v1.4.0 to v2.1.3 via an additive overlay based on v2.0.2. QA/CI: BCR presubmit automation verified. Collaboration: Co-authored by UebelAndre.

March 2026 monthly summary for linkml/linkml: Focused on stabilizing SHACL output with a targeted bug fix in the SHACL generator. Implemented to omit the sh:class constraint for linkml:Any, preventing validation failures for unconstrained meta-type instances. Commit f3dc60b3778c83967bc00558de705834fcbd9854. This change reduces downstream validation noise and improves the reliability of data validation pipelines. Skills demonstrated include Python development, SHACL knowledge, and disciplined Git-based contribution.