# hermes-agent v2026.8.16.2 — Hermes Agent v0.20.3 (2026.8.16.2)

- Product: hermes-agent (https://whatsnew.fyi/product/hermes-agent)
- Vendor: NousResearch
- Date: 2026-08-17
- Version: v2026.8.16.2
- Original notes: https://github.com/NousResearch/hermes-agent/releases/tag/v2026.8.16.2
- Permalink: https://whatsnew.fyi/product/hermes-agent/releases/v2026.8.16.2

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — MCP 2.x SDK migration support
- **added** — 2026-07-28 stateless protocol support
- **added** — Bundled Bot Mode (hermes-bots) plugin with core teammate protocol
- **added** — CommandCode provider plugin
- **added** — Plugin install security scanning
- **added** — /worktree command
- **added** — /rollback command with hand-edit preservation
- **added** — UTF-16 file reads support
- **added** — Gemini 3 tool-call ID preservation
- **changed** — Subprocess Python runtime ownership hardening with PYTHONHOME/PYTHONPATH isolation
- **changed** — Cua Driver 0.20 runtime contracts for computer use
- **changed** — Desktop remote-gateway headers and connection self-healing
- **fixed** — Kanban worktree/dispatch issues
- **fixed** — Session handoff data-loss
- **fixed** — Cron scheduler self-heal including EMFILE recovery, stale-claim reconciliation, and wedged-job re-arm
- **fixed** — Cron continuity flags

#### Hermes Agent v0.20.3 (v2026.8.16.2)

**Release Date:** August 16, 2026

> Patch release. This tag rolls up the ~125 PRs merged since v0.20.2 into a stable tagged release for downstream consumers (Docker images, hosted deployments, fresh installs).

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##### About this release

Since v0.20.2 (v2026.8.16, tagged earlier today), this window landed **~250 commits** across **~461 files** (+42,613 / −1,641) — **~125 merged PRs** including the MCP 2.x SDK migration and 2026-07-28 stateless protocol support, the bundled Bot Mode (hermes-bots) plugin with the core teammate protocol, the CommandCode provider plugin, subprocess Python runtime ownership hardening (PYTHONHOME/PYTHONPATH isolation), Cua Driver 0.20 runtime contracts for computer use, kanban worktree/dispatch fixes, cron continuity flags, desktop remote-gateway headers and connection self-healing, cron scheduler self-heal (EMFILE recovery, stale-claim reconciliation, wedged-job re-arm), session handoff data-loss fixes, plus a wave of ports from the ecosystem scout slate (plugin install security scanning, /worktree, /rollback hand-edit preservation, UTF-16 file reads, Gemini 3 tool-call ID preservation, and more).

**Full curated release notes for this window will ship with v0.21.0**, which will document everything from v0.20.0 onward — highlights, feature areas, and complete contributor credits. Nothing in this window is skipped.

##### Updating

- `hermes update` from an existing install
- Fresh install: `curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash`

**Full Changelog**: https://github.com/NousResearch/hermes-agent/compare/v2026.8.16...v2026.8.16.2