Changelog

v3.1.0 - 2026-04-18

Rewrote the root README.md around a public-facing TL;DR, release-channel guidance, architecture snapshot, and migration status.
Promoted scripts/upstream_sync.py as the authoritative upstream-first sync and release-closeout driver for this fork.
Clarified that the official Codex surfaces now define the product baseline: codex, codex app, codex app-server, and plugins.
Documented the native Windows verification boundary around the v8 symlink privilege prerequisite so release status is not confused with a repo regression.

Stable release channel v3.1.0-stable.0 from release/3.1.0-stable.
Mainline release channel v3.1.0 from main.
Tracked repo-local marketplace at .agents/plugins/marketplace.json.
Repo-local plugin bundle at plugins/zapabob-legacy-suite/.codex-plugin/plugin.json.

codex gui-x no longer launches the legacy GUI stack.
Legacy GUI trees remain in the repository only until plugin parity is verified.
Fork-only virtual OS, computer-operation, and OS-control surfaces are deprecated.