Nous Research Release Notes

Hermes Agent v0.21.7

Release Date: October 11, 2026

Patch release. This tag rolls up the ~204 PRs merged since v0.21.6 into a stable release for the desktop app (macOS Apple silicon, Windows), the Microsoft Store and MSIX, the installer, Docker and Hermes Cloud. Full curated notes for this window ship with v0.22.0.

What this patch ships for source installs (hermes update and the desktop app's updater on a git checkout):

Updates now follow tagged releases. A source install of the official repository updates to the latest published vX.Y.Z release instead of every commit on main. An install already newer than the latest release stays where it is and waits for the next one; nothing is moved back. To keep following every commit: hermes update --set-channel main. Forks and mirrors keep following main. Store, MSIX and bundled desktop installs are unchanged.

Choose the channel in the desktop app. Settings ▸ About ▸ Updates has an Update channel switch (Stable releases / Every commit) for source installs, and the update dialog now shows which channel you are on.

Reasoning survives resume. Signed thinking replays after hermes chat --resume and on the next gateway turn, and Bedrock Converse reasoning models no longer get rejected on resumed sessions.

Updates no longer fail behind some firewalls. Installs on main no longer fetch a release record that regional firewalls could answer with 403. The stable check uses your GitHub token when one is set (GITHUB_TOKEN or gh auth login) and reports a GitHub rate limit as a rate limit.

About this release

Measured at commit 1fd18277267152893a8a24792b79213e7ca3f899, the window since v0.21.6 contains 740 non-merge commits across 4,156 changed files (+86,775 / −26,980), 204 merged PRs and 69 closed issues.

Also in the window, undocumented here on purpose: plugins running built-in Desktop app actions (ctx.runAction) and a plugin SDK pet bubble (ctx.pet.say); core-made Codex requests so plugins never hold the token; skills installed mid-session reaching the model without a prompt rebuild; Krea 2 Medium Turbo as the default image lane for new paid subscribers, with a FAL fallback when managed Krea refuses a request; faster desktop updates (the React Compiler pass cached by content, the compiled renderer reused when only the install stamp changed, unchanged native inputs left in place); pinned installs that check out only the pin; compaction marks emitted to Relay; and new community plugins including memory-shield, command-ledger, Memoria, Model Router, wyoming-voice-bridge, codex-account-switch and redline.

Full curated release notes for this window ship with v0.22.0, which will document everything from v0.21.0 onward — highlights, feature areas, and complete contributor credits. Nothing in this window is skipped.

Updating

Desktop app: updates itself. Microsoft Store installs update through the Store.

CLI: hermes update, or re-run the installer one-liner.

Docker / Hermes Cloud: nousresearch/hermes-agent:stable (or :latest).

Full Changelog: v0.21.6...v0.21.7