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Public release notes for Stack. Use this page to understand what changed, what may break, and which release channel a change belongs to.
The repository changelog is the canonical technical source: stack/CHANGELOG.md. Private launch gates, dogfood evidence, internal waivers, and operator-only incident notes live outside the public docs.

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Channels

ChannelWhat to expect
dev / nightlyLatest usable Stack from main. Good for dogfood and early feedback. May carry known limitations with rollback notes.
release candidateShort freeze before stable. Fixes, docs, packaging, and evidence only.
stableSupported public release with documented install, update, support, and rollback or migration posture.

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Public Entry Format

Each public entry should include:
  • version or nightly id;
  • release channel;
  • install or update instructions when they changed;
  • user-visible additions, changes, fixes, and removed behavior;
  • breaking changes with migration steps;
  • known limitations that affect first-run or hosted-feature use;
  • links to docs, GitHub Release, or issue threads when public.
Do not include private Linear ids, private eval data, secret names, internal waiver details, customer-specific incidents, or raw proof transcripts here.

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Entries

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2026-06-29
stacknightlyplanning
Stack nightly channel planning — release lifecycle, local-first activation, terminal auth, and handoff launch bar.
  • Planned: Stack will use separate dev/nightly, release-candidate, and stable channels.
  • Added planning surface: stack doctor, stack demo, and read-only stack update --check are the first local support, receipt, and manifest proof commands for Nightly 1.
  • Planned: local Stack should run without Synth signup; Synth sign-in will unlock hosted features.
  • Planned: public changelog entries will stay user-facing, while private evidence and launch gates remain in internal release ledgers.
  • Current status: Stack is still internal alpha. Public package-manager installation and stable support expectations will be added when those channels are live.
See Stack Overview and the repository CHANGELOG.md.
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2026-06-26
stack0.1.0internal-alpha
Stack 0.1.0 internal alpha — first distributable Stack release for Synth operators.
  • Added: OpenTUI cockpit with Codex agent pane, session history, transcript tooling, and environment-aware Synth operations.
  • Added: stack-mcp for local agent access to configured Synth operations.
  • Added: local GEPA and dev-slot setup helpers for internal Synth research engineering workflows.
  • Added: bundled Codex skills for Stack setup, Synth workflows, and Stack agent bridge usage.
  • Status: internal alpha only. Public GitHub Release and Homebrew install paths are not live yet.