Hermes Update: What's New in v0.20.2
Hermes Agent v0.20.2 patch release: 397 PRs, 967 commits hardening the desktop app, gateway, and CLI.
Just three days after v0.20.1, v0.20.2 arrived. This is a patch release — it rolls up 397 merged PRs and 967 commits from the past three days into a stable tagged release for Docker images, hosted deployments, and fresh installs.
TL;DR
No headline new features — but all three areas (desktop, gateway, CLI) got hardened. For anyone running multiple bots 24/7, several fixes hit exactly where it matters.
What’s New
🖥️ Desktop App
- Multi-gateway Connections registry: one desktop app can now manage connections to multiple gateways (previously only one)
- Profile-scoped refreshes: switching between bots refreshes more precisely, without cross-interference
- MCP health checks + deep links: connection status at a glance, easier to pinpoint issues
⚙️ Gateway (most practical)
- Persisted model routes: model routing survives restarts (previously had to be reconfigured)
- /loop completion events: loop tasks now signal clearly when done
- Telegram DM topics: private chats can use topics now
⌨️ CLI
- Windows update probes: update checks are more reliable on Windows
- Kitty keyboard protocol: key presses no longer garble in that terminal
- chat -c hardening: continuous chat mode is more robust
🔧 Under the hood
- Prompt caching for LiteLLM Claude on the OpenAI wire: caching support when calling Claude via OpenAI protocol (saves money)
- cron hardening: scheduled tasks are more stable
- Installer robustness: more robust installs on both Linux and Windows
Impact on Typical Setups
| Concern | Impact |
|---|---|
| Multiple resident bots | ✅ Persisted gateway routes + cron hardening benefit directly |
| Feishu/WeChat integration | ✅ No breaking changes; existing configs compatible |
| DeepSeek calls | ✅ Unaffected (caching is for the LiteLLM path; native DeepSeek API untouched) |
| How to update | One command: hermes update |
Should You Update Now?
Recommendation: wait about a week. Reasons:
- It’s a patch release — stability-focused, nothing you must adopt immediately
- Full curated release notes ship with v0.21.0
- For systems running many resident bots, stability first — wait 3-5 days to see if anyone reports issues
If you want to try it now: hermes update — the upgrade does not touch your data (config, memory, and skills live in the data volume, safe).
Full changelog: https://github.com/NousResearch/hermes-agent/compare/v2026.8.13...v2026.8.16
📖 Official Docs
This article is based on the official Hermes Agent documentation:GitHub ›/releases