Month: 2026-01 — Focused on documentation quality for data.table join semantics in Rdatatable/data.table. Delivered a Documentation Clarification: DataTable Join Prefixing, correcting a typo and clarifying how column names are prefixed during joins. No major code defects fixed this month; all work prioritized reducing user confusion and improving onboarding. This work drives business value by clarifying join behavior, lowering support overhead, and improving OSS maintenance. Skills demonstrated include documentation discipline, Git workflow, and domain expertise in data.table.