* [Kappa Graph (G) v0.15.0](https://github.com/aaronsb/knowledge-graph-system) – Semantic knowledge graph extracting concepts from documents, measuring grounding strength, and preserving source provenance and disagreement.

* [pgGraph v0.1.5](https://github.com/Evokoa/pgGraph) – PostgreSQL extension that builds a derived graph index and enables graph search, traversal, and shortest-path queries over ordinary tables.