Changelog

First public release of DAC (Dispatched Agent Cluster) — an MIT open-source control
plane for fleets of containerized agent nodes across servers, built on DeepSeek Harness.

New Features

• Fleet management — one manager, machines joined by a node agent (zero inbound
  ports), nodes as container workers or host processes, live topology view with
  heartbeat edges, per-node DSH version pinning.
• Unified conversation — streaming chat against any node, tool cards, inline
  question and approval handling, per-session model selection and access-mode switching.
• API access — every node exposed through one authenticated gateway prefix, so
  third-party clients get the same agents the UI has.
• Brain dispatch — conversational orchestration with delegation frames; read-only on
  workspaces, execution is always delegated.
• Operations — audit log, peak/off-peak costing with daily budget breakers, encrypted
  backups with a restore drill, self-update with health probe and automatic rollback,
  in-app notifications.
• Bilingual UI — English by default, Chinese switchable per user; adding a language
  is one JSON file plus one registry line.

Improvements

• Renamed the product to DAC (was "Oh! dsh"); repository and images follow.
• Made English the default language and moved every user-visible string into
  translatable locale files.
• Added SECURITY.md, CONTRIBUTING.md, CODE_OF_CONDUCT.md, issue and PR templates.

Security

• Node ports bind loopback only; dangerous operations are gated by approval cards.
• Agent tokens rotate with a 30-minute grace window; first login forces a password
  change.