During July 2025, Gerardo Alejo focused on enhancing the stability of Apache POI’s PPTX text bullet rendering. He addressed a critical edge case in the XSLFTextParagraph component, where auto-numbered bullets with a minimum value of zero triggered an IllegalArgumentException. By adjusting the minimum auto-numbering value to one and introducing targeted regression tests, Gerardo improved the reliability of bullet list rendering for end-users. His work, implemented in Java and supported by comprehensive unit testing, ensured that future changes would not reintroduce this issue. The fix contributed to more robust PPTX generation and editing within the apache/poi repository.