v1.813.0 v4.20.6
NVIDIA/NeMo-Speech.cppSep 16, 2026 → Sep 16, 20260 days between releases
What's New
The older release focused on AI session persistence, while the newer release fixes critical Cypher query execution and database indexing bugs.
Improvements
- Reduced write stall time during edge batch processing from ~1.5s to ~5ms
- Implemented strict row-major order merging for delta-plus entries to ensure safety
Bug Fixes
- Fixed `count(*)` under-counting parallel edges in Cypher queries
- Resolved index population hanging or skipping rows due to unsynced delta matrices
Upgrade Notes
Review Cypher queries using `count(*)` on parallel edges, as the aggregation behavior has been corrected to preserve multiplicity. Monitor index population processes to ensure they complete successfully.
The Two Releases
v1.813.0
Sep 16, 2026· 1 month ago
This release focuses on AI session persistence and retention, introducing object storage backups and automated cleanup policies. It also adds streaming capabilities for agent reasoning summaries and improves session management in the browser.
Full release notesv4.20.6
Sep 16, 2026· 1 month ago
This release focuses on resolving critical bugs related to query execution and database indexing. It fixes an under-counting issue with parallel edges in aggregation queries and resolves a problem where index population could hang or skip rows when dealing with unsynchronized delta matrices.
Full release notes