v2026.9.7 v2.2.1
NousResearch/hermes-agentSep 7, 2026 → Sep 8, 20261 day between releases
What's New
Security and installer updates address PowerShell handling and file collisions, diverging from previous modularization efforts.
Breaking Changes
- Relative GateGuard exemption globs are restricted to the project root.
- Installer writes now reject collisions with untracked user-owned files.
New Features
- Pi adapter runtime fix.
- Hook payload handling improvements.
Improvements
- GateGuard security improvements prevent destructive PowerShell commands.
- Installer collision protection preserves ownership hashes of untouched managed files.
- Documentation corrections and provenance boundary updates.
Bug Fixes
- GateGuard and governance capture recognize destructive PowerShell commands.
- Pi adapter runtime fix.
- Uninstall respects ECC_DRY_RUN=1.
Upgrade Notes
Review GateGuard exemption globs to ensure they are relative to the project root. Be aware that the installer now rejects collisions with untracked user files. Verify uninstall behavior respects the ECC_DRY_RUN environment variable.
The Two Releases
Hermes Agent v0.21.1 (v2026.9.7)
Sep 7, 2026· 1 month ago
This patch release aggregates significant changes from the main branch since v0.21.0, focusing on codebase modularization, performance optimizations, and reliability improvements. It includes updates to providers and models, along with enhancements to desktop session controls and MCP authorization.
Full release notesv2.2.1
Sep 8, 2026· 1 month ago
A bug and security patch release for ECC 2.2.0 addressing PowerShell handling, GateGuard governance, and installer collision protection.
Full release notes