AgentOS v0.2.0 — Developer Preview 2

AgentOS v0.2.0 — Developer Preview 2

This page is the release notes for v0.2.0, and the source text for the GitHub
Release body of the same tag.

AgentOS is a local, single-operator control plane for handing scoped software
tasks to coding CLIs already installed on your own machine, and for keeping what
they did observable and durable: tasks, agents, repository and file grants,
isolated run records, provider event streams, human questions, review gates and
git delivery, in one workflow.

What this release is for. The same envelope as v0.1.0: evaluating AgentOS on
a machine you own, against repositories you are willing to have an agent write
to. It is not a production install.

What changed since v0.1.0

The headline is the task-chain overhaul, exercised end-to-end on an isolated
rehearsal stack before this release:

• Planning for parallelism. The twelve-step template's planning step cuts
  tracer-bullet slices engineered for a wide frontier of mutually unblocked
  slices, and plan review prices every merge and added dependency edge against
  that width.
• Parallel implementation waves. Implementation schedules slices in
  dependency waves — one isolated git worktree and one background subprocess
  per slice, serial merges at each wave barrier, acceptance tests rerun on the
  merged head.
• Dual-path blind code review. An independent review on the Codex side and
  a blind review with final adjudication on the Claude side; the task-claim API
  now honours attachmentsFromPrevious=false, so the blind step really starts
  blind. A regression step verifies the applied fixes.
• Control-plane hardening. Ownership recovery, device-drift tolerance,
  maintenance-lock session recovery, bounded startup, onboarding prerequisite
  validation, and backup quiescence attestation checks.
• Operations. A canonical-prompt sync command for existing installations, a
  substantially faster merge gate, safe local configuration repair, and
  published operational harnesses.

The full list, by area, is in CHANGELOG.md.

Release identity

Version	0.2.0
Tag	v0.2.0 (annotated)
Prerelease	Yes
Release commit	The commit the v0.2.0 tag points to, stated on the GitHub Release page.
GOAL5A0_MASTER_SHA	8d69ee8544196a3310b3d63caf8ce5ec9a0e023b
GOAL5A0_CONTROL_PLANE_A_SHA	29f8dd354cb99d671c2e2e4e9e23716fd8004f3d

Install and upgrade

There is no upgrade path between developer previews. Install fresh, following
the quickstart in the repository README.md — it checks out
v0.2.0 and exports this release's GOAL5A0_* values above. The host
warnings and verification steps in the
v0.1.0 release notes apply unchanged to this
preview.

Existing installations that track main can bring their database prompts up
to date with npm run db:sync-canonical-prompts -w @agentos/db after pulling.

Support, security and licensing

The v0.1.0 support matrix remains the current
statement of what is supported and on what evidence; this release adds runtime
evidence for the twelve-step chain path (parallel implementation waves and the
dual-path blind review exercised end-to-end on an isolated stack). The v0.1.0
security,
license and assets and
migration and recovery documents remain
current.