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F068 · compatibility

Versioned embed compatibility contract

Freezes loader.js v1 compatibility, snippet attributes, deprecation policy and upgrade notes.

Production launch

NO-GO

static readiness cannot launch production.

Scope

F068 report

Blocked phases

0

Warning phases

1

F068

Versioned Embed Compatibility Contract

WARNING

loader.js v1 compatibility policy is frozen at contract level; real regression fixtures are still required.

Required evidence

  • loader.js v1 endpoint returns stable version header
  • snippet parser accepts current v1 attributes
  • deprecated attributes do not break old embeds
  • upgrade notes and compatibility window
PASS

Loader v1 contract

F058 route emits x-kline-loader-version=v1 and versioned data attributes.

WARNING

Backward-compatible snippet parser

Current parser supports v1 attributes; legacy fixture coverage still needs browser regression.

WARNING

Deprecation policy

Policy is documented as readiness; release notes must be published before customers update.

Global production gates

BLOCKED

Frontend green gate

Run pnpm install/typecheck/lint/build/test/dev/test:e2e in local or staging.

BLOCKED

Backend green gate

Run npm ci, prisma generate/validate, typecheck, lint, test, start/dev and migration check.

BLOCKED

Browser/embed QA

Plain HTML, Next.js, WordPress-like, mobile, multi-widget and no-token checks require real browser evidence.

BLOCKED

Security/observability evidence

Token redaction, CSP, iframe sandbox, postMessage allowlist and trace id propagation must be proven.

WARNING

Release/docs evidence

Customer install guides, troubleshooting, known limitations and rollback docs need final review.

Launch blocking reasons

Blocker 1
F066: Production Deployment / Environment Freeze is WARNING / not production-promotable from static evidence.
Blocker 2
F067: Observability / Logs / Metrics / Trace IDs is WARNING / not production-promotable from static evidence.
Blocker 3
F068: Versioned Embed Compatibility Contract is WARNING / not production-promotable from static evidence.
Blocker 4
F069: Customer Onboarding / Install Guide QA is WARNING / not production-promotable from static evidence.
Blocker 5
F070: Production Security Hardening is BLOCKED / not production-promotable from static evidence.
Blocker 6
F071: Production Data Reliability is BLOCKED / not production-promotable from static evidence.
Blocker 7
F072: Regression Suite Freeze is WARNING / not production-promotable from static evidence.
Blocker 8
F073: Release Candidate / RC1 is BLOCKED / not production-promotable from static evidence.
Blocker 9
F074: Beta Feedback / Bugfix Window is WARNING / not production-promotable from static evidence.
Blocker 10
F075: Production Launch Readiness is BLOCKED / not production-promotable from static evidence.

Commands required outside sandbox

Command 1
pnpm install
Command 2
pnpm typecheck
Command 3
pnpm lint
Command 4
pnpm build
Command 5
pnpm test
Command 6
pnpm dev
Command 7
pnpm test:e2e
Command 8
npm ci
Command 9
npx prisma generate
Command 10
npm run prisma:validate
Command 11
npm run typecheck
Command 12
npm run lint
Command 13
npm run test
Command 14
npm run start:dev
Command 15
migration check

Next safe action

Run F066-F075 as a production-track readiness/handoff, then collect real local/staging frontend, backend and browser evidence before RC1 or production launch.