Hermes v2026.5.29.2 Update: Hermes Agent v0.15.2 (2026.5.29.2)

This patch release ensures that Hermes Agent plugins are properly recognized and loaded when installed from the official Python package, fixing a packaging oversight that could leave plugins invisible after installation.

What’s New

Nothing flashy here — and that’s okay. This release is all about reliability under the hood. If you’ve ever installed a plugin and wondered, “Hey, where did it go?” — this update is for you.

The Fix: Plugin Manifests Now Ship in the Box

Think of a Hermes Agent plugin like a new app on your phone. The app itself is the code, but the plugin.yaml manifest is like the app’s icon and description — it tells Hermes what the plugin does, how to configure it, and when to load it.

Previously, when you installed Hermes via pip (the wheel) or from the source archive (sdist), the plugin manifests were accidentally left out of the package — like shipping a phone without the home screen icons. The code was there, but Hermes couldn’t “see” the plugins to load them.

The fix (commit 827f7f07) ensures that all plugin.yaml files are now bundled inside the wheel and sdist. So when you install Hermes Agent v0.15.2, every plugin manifest comes along for the ride, and Hermes can instantly recognize and activate any bundled plugins.

What This Means for You

No more “plugin not found” confusion — if a plugin ships with Hermes, it will now actually appear in your agent’s plugin list after installation.
Cleaner installs — whether you’re using pip install hermes-agent or building from source, you get the same complete experience.
Zero configuration changes — this is a pure packaging fix. Your existing workflows, configs, and custom plugins remain untouched.

Who Should Update?

Everyone using Hermes Agent — especially if you’ve ever installed a plugin and had to manually hunt for its manifest file.
Developers building on Hermes — if you’ve been working around missing manifests by copying files manually, this removes that hack.
CI/CD pipelines — if you automate plugin deployment, this ensures consistent behavior across environments.

The Bottom Line

This release is like fixing a missing zipper on a backpack: you didn’t notice it until something fell out, but now everything stays securely in place. Hermes Agent v0.15.2 is a small but essential quality-of-life patch that makes plugin installation predictable and frustration-free.

Upgrade when you can — it’s a drop-in replacement, no migration steps required.

📎 Official release notes: https://github.com/NousResearch/hermes-agent/releases