2026-04 monthly summary for lab-cosmo/atomistic-cookbook: No new features released this month; focus was on cleaning up repository documentation to improve maintainability and reduce risk. Major bug fix: Removed documentation files that were mistakenly added, including recipes grouped by software and topics related to simulation problems and modeling techniques. Commit reference: 9b4b9bd3dea88fff3dcb3b6da20c0f83e333bad2. This cleanup clarifies project scope and prevents outdated content from misleading users.

July 2025 performance summary: Delivered three targeted enhancements across metatensor/metatrain, lab-cosmo/atomistic-cookbook, and metatensor/metatensor that drive faster model pipelines, more reliable fork PR builds, and flexible metadata validation. These changes deliver measurable business value: faster field-level data loading reduces memory and transfer costs; authenticated fork PR artifact access removes distribution bottlenecks; and optional gradient metadata checks streamline tensor comparisons for large models.