The agent that
grows with you

• ▸ *Release Date:** August 19, 2026
• ▸ --
• ▸ *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.
• ▸ hermes update from an existing install
• ▸ Fresh install: curl -fsSL https://raw.githubusercontent.com/NousResearch/hermes-agent/main/scripts/install.sh | bash

Hermes Agent v0.20.5 (v2026.8.19)

Release Date: August 19, 2026

> Patch release. This tag rolls up the ~323 PRs merged since v0.20.4 into a stable tagged release for downstream consumers (Docker images, hosted deployments, fresh installs).

---

About this release

Since v0.20.4 (v2026.8.18, tagged August 18), this window landed ~746 commits across ~1,250 files (+111,500 / −20,701) — ~323 merged PRs including Bot Mode group-room threads, foldable conversation summaries, blob-face avatars, and PDF/file attachments with drag & drop; the keyless web tier (5-vendor free rotation with ring failover, web search on fresh installs with zero keys); a CLI polish wave (fuzzy /model picker, Ctrl+P command palette, richer /status); execution-discipline and runtime stall guards from the Composio eval findings; hermes update receipts and fleet --plan verification; hermes worktree list/prune; the opencode-free zero-auth provider; multi-question clarify; desktop perf work (paint-first Bot Mode hydration, compositor spinners, React Compiler in both renderers); and cron jobs gaining persistent memory and per-job reasoning effort.

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/v2026.8.18...v2026.8.19

Hermes Agent v0.20.4 (v2026.8.18)

Release Date: August 18, 2026

> Patch release. This tag rolls up the ~74 PRs merged since v0.20.3 into a stable tagged release for downstream consumers (Docker images, hosted deployments, fresh installs).

---

About this release

Since v0.20.3 (v2026.8.16.2, tagged August 17), this window landed ~146 commits across ~265 files (+21,697 / −2,217) — ~74 merged PRs including the desktop glass/translucency surface work (matte glass, frost picker, macOS pre-select), the tabbed SESSIONS|BOTS sidebar with per-bot hide/unhide, Bot Mode group-chat fixes (long-running member turns, Markdown rendering, cross-machine routing), NVIDIA SkillEvaluator Tier 1 advisory scanning on skill installs (license + security checks), cron media-send hardening (configurable timeout, manual-run attachments, missed-fire surfacing), SessionDB event-loop-thread and contention fixes, hermes update parked-branch honesty, and kanban native OS notifications.

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/v2026.8.16.2...v2026.8.18

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).

---

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