# Hermes Agent v0.20.3: patch rollup of ~125 PRs including MCP 2.x, bot mode, cron self-heal

> Patch release bundling ~125 merged PRs since v0.20.2 into a stable tag. Notable changes include the MCP 2.x SDK migration, stateless protocol support, a bundled Bot Mode plugin with teammate protocol, the CommandCode provider plugin, Python subprocess isolation, Cua Driver 0.20, cron scheduler self-healing (EMFILE, stale-claim, wedged-job recovery), and session handoff data-loss fixes. Full curated release notes deferred to v0.21.0.

| | |
|---|---|
| **Tool** | Hermes Agent |
| **Version** | v2026.8.16.2 |
| **Kind** | release |
| **Published** | 2026-08-17 |
| **Observed** | 2026-08-21 |
| **Significance** | 3/5 |
| **Breaking** | no |
| **Categories** | feature, fix, capability |

## What changed


- **MCP 2.x SDK migration** and 2026-07-28 stateless protocol support
- **Bot Mode plugin** (hermes-bots) bundled with core teammate protocol
- **CommandCode provider plugin**
- **Python subprocess hardening**: PYTHONHOME/PYTHONPATH isolation
- **Cua Driver 0.20** runtime contracts for computer use
- **Kanban worktree/dispatch fixes**
- **Cron continuity flags** and scheduler self-heal (EMFILE recovery, stale-claim reconciliation, wedged-job re-arm)
- **Desktop remote-gateway** headers and connection self-healing
- **Session handoff** data-loss fixes
- **Ecosystem scout ports**: plugin install security scanning, /worktree, /rollback hand-edit preservation, UTF-16 file reads, Gemini 3 tool-call ID preservation
- Full curated notes promised with v0.21.0


## Sources

- [github_release](https://github.com/NousResearch/hermes-agent/releases/tag/v2026.8.16.2) — retrieved 2026-08-21


## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

---
Canonical: https://changelogs.info/hermes-agent/v2026-8-16-2
Entity: https://changelogs.info/hermes-agent
Event ID: `evt_2026-08-17_hermes-agent_v2026-8-16-2`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.