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v0.22.2 1.0.1

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NousResearch/hermes-agentOct 15, 2026 → Oct 15, 20260 days between releases

What's New

Major version bump adds Web APIs and removes `setImmediate` support

Breaking Changes

  • Removed `setImmediate` and `clearImmediate` APIs
  • Max HTTP redirects increased from 10 to 20
  • Unsupported protocols no longer navigated; `javascript:` URLs now run inline

New Features

  • Added Web Locks and Compression Streams APIs
  • Added `--http-session-timeout`, `--trace`, and `--trace-results` flags
  • Added `completion` CLI command for shell completion
  • Added BiDi `browser.getClientWindow` and WebDriver window close
  • Added RSA-OAEP support in Web Crypto

Improvements

  • Enhanced Fetch spec compliance and HTTP redirect handling
  • Improved CDP and WebDriver capabilities
  • Optimized memory usage with V8 array buffer limits

Upgrade Notes

Code relying on `setImmediate` must be updated. HTTP redirect limits have increased to 20. MCP and agent modes now load external stylesheets by default.

The Two Releases

v0.22.2

Hermes Agent v0.22.2

Oct 15, 2026· 7 days ago

v0.22.2 is a hotfix correcting issues from v0.22.1, which shipped incorrect gateway work and caused the Microsoft Store app to hang. This release ensures the gateway starts reliably after a reboot and handles long local-model turns better on laptops, while introducing new language packs and plugins.

Full release notes
1.0.1

1.0.1

Oct 15, 2026· 7 days ago

This release focuses on stability, performance, and improved compliance with web standards, including the Fetch spec and CSS rendering. It introduces new Web APIs like Web Locks and Compression Streams, enhances CDP and WebDriver capabilities, and optimizes memory usage.

Full release notes