---
title: "What's New in Go Micro: v6.6.0"
linkTitle: "v6.6.0"
date: 2026-07-11
description: "Go Micro v6.6.0 strengthens the first-agent on-ramp, hardens plan/delegate recovery, and adds CI-backed security checks."
aliases:
  - /blog/35
---
Go Micro v6.6.0 is a harness reliability release. The theme is the same services → agents → workflows lifecycle, but with more of the first-agent path covered by local checks and more recovery paths made deterministic when agents resume, retry, delegate, or notify.

## The first-agent path is harder to break

The README, website docs, examples, and 0→hero guide chain now have more harness coverage. The CLI and docs keep the path from install troubleshooting through `micro agent demo`, quickcheck, examples, the smallest first-agent, debugging, and 0→hero in one consistent order.

That matters because the first agent is where framework promises become real: scaffold a service, run it, chat with an agent, inspect what happened, and then graduate to workflows.

## Plan/delegate recovery is steadier

Plan/delegate got another reliability pass across side effects, notification replay, plan-only actions, timeout completion, and completed-plan recovery. These fixes are not flashy, but they are exactly the kind of harness work that keeps an agent from repeating work or losing state when a multi-step run is interrupted.

## Provider fallback keeps improving

AtlasCloud fallback handling now recovers more awkward provider outputs, including workspace repair calls, empty-argument text tool calls, spoken notification replays, and A2A fallback artifact text. The goal is pragmatic interop: when a provider response is close enough to a safe tool call, the harness should repair it; when it is not, the failure should stay visible.

## Security checks joined the loop

CI now includes a govulncheck gate and the autonomous loop can route vulnerability failures into triage. The release also includes toolchain and dependency updates for reachable CVEs, keeping the service framework side of the harness current while agent features continue to land.

## Read the changelog

The full release notes are in the [CHANGELOG](https://github.com/micro/go-micro/blob/master/CHANGELOG.md).
