During October 2025, this developer delivered int8 support for HGraph in the antgroup/vsag repository, focusing on efficient indexing for small numeric datasets. They implemented changes in C++ to enable HGraph to handle int8 data types, updated build scripts, and provided a clear usage example that demonstrates tangible performance improvements. Their work involved algorithm implementation, data structures, and vector search, resulting in a demo file and documentation that accelerates adoption of memory-efficient data types. The depth of the contribution is reflected in the integration of new features, build automation, and example-driven guidance, with no major bugs reported during the period.