v2026.9.14 v2.3.1
visioncortex/vtracerSep 14, 2026 → Sep 14, 20260 days between releases
What's New
Repository transition from Hermes Agent to Spice with performance and feature upgrades
Breaking Changes
- MCP protocol updated to 2026-07-28, requiring client updates.
- New Cayenne CTE materialization flag may alter query execution plans.
New Features
- Cayenne supports multi-reference CTE materialization with new config flag.
- Memory-Mode DML (INSERT, UPDATE, DELETE) is now supported in Cayenne.
- MCP server and client support 2026-07-28 protocol revision.
- Installer validates archives and provides writable temporary directories.
- Parameterized queries reuse logical plans to reduce latency.
Improvements
- Vortex scans are faster with selective filters and zone statistics.
- Large IN lists run faster using set probes instead of row-by-row evaluation.
- Cache eviction is more reliable with timestamp ranges and proper key limiting.
- Installation reliability improved with archive validation and scratch images.
- Subquery fallback and numeric conversion improvements.
Upgrade Notes
MCP clients must be updated to support the 2026-07-28 protocol version. New Cayenne configuration flags are required for multi-reference CTE materialization. Ensure writable temporary directories are available as the installer validates archives.
The Two Releases
Hermes Agent v0.21.3 (v2026.9.14)
Sep 14, 2026· 1 month ago
This patch release consolidates over 300 merged PRs to fix critical stability issues in remote dashboard sessions and database handle management for Cloud agents and Docker deployments.
Full release notesSpice v2.3.1 (September 15, 2026)
Sep 14, 2026· 1 month ago
This patch release significantly improves query performance and system reliability by optimizing Vortex scans, enhancing cache eviction logic, and supporting the latest MCP specification.
Full release notes