v2026.9.21 v1.7.20
d2lang/d2Sep 21, 2026 → Sep 22, 20261 day between releases
What's New
Major version bump adds TypeSafe Jev HITL backend for structured tool call approval.
New Features
- TypeSafe Jev HITL backend integration
- Structured pass/block scores for tool calls
- Local rule synthesis for approve/reject decisions
- Custom approval policy overlay support
- Built-in rules blocking live-system destruction and data changes
Upgrade Notes
Tool calls are now processed by the TypeSafe Jev HITL backend for structured approval. Configure custom organization policies as overlays to the built-in safety rules. The OpenAI-compatible reviewer remains available for alternative approval workflows.
The Two Releases
Hermes Agent v0.21.4 (v2026.9.21)
Sep 21, 2026· 1 month ago
This patch release rolls up over 1,800 PRs, focusing on profile isolation, CLI improvements, and the addition of new video generation models.
Full release notesSep 22, 2026· 29 days ago
Integration of TypeSafe Jev as a Human-in-the-Loop (HITL) audit backend to handle tool calls with structured approval and local rule synthesis.
Full release notes