December 2025 monthly summary focusing on improving documentation accuracy for problem statements in OI-wiki/OI-wiki. Delivered a critical Longest Common Subsequence documentation correction to fix enumeration and improve example correctness, increasing content reliability for learners and reducing support queries. Work completed with Git-traceable commits and clear issue linkage.

November 2025: Documentation quality improvement for OI-wiki/OI-wiki. Key feature delivered: corrected a typo in the logarithmic function representation in elementary-func.md to ensure accurate explanations of polynomial logarithmic functions. This change reduces reader confusion and improves content reliability for learners. All changes were captured in commit 362f2c1f81f7199732de14ba814e5b72ee1c8878 (fix(elementary-func.md): typo (#6712)).

May 2025 monthly summary for OI-wiki/OI-wiki: Focused on documentation accuracy and quality enhancements. There were no new features released this month; the primary effort was a critical documentation bug fix in the Gaussian Elimination for XOR Systems module, ensuring mathematical notation accurately reflects the m-th row of the system.