c15t
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What changed in c15t.

Release notes for every version of c15t, newest first.

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LatestMajor releaseBreaking changes

The Open Standard for Cookie Banners

Major release notes for c15t 3.0. One consent engine for Next.js, TanStack Start, React, Nuxt, Vue, Astro, Svelte, SvelteKit and plain HTML, banners in the server HTML, the consent manifest, policy rules, GPP, publisher restrictions, new integrations and a rewritten self-hosted backend.

  1. Eight frameworks and a script tag. TanStack Start, Nuxt, Vue, Astro,
  2. One package. npm install c15t, then import from c15t/next,
  3. Banner in the first HTML. Server-rendered frameworks can render the
  4. Consent manifest. Your server caches one manifest per site and decides
  5. Less work in the browser. Smaller render-blocking CSS, themes built on
  6. Policy rules. A simpler policy format, 34 presets instead of 6,
  7. Per-vendor consent. Visitors can switch off one vendor inside a category
  8. GPP and publisher restrictions. GPP 1.1 with 16 US state sections, and
  9. New integrations. Cloudflare Zaraz, Klaviyo and the OpenAI pixel for
  10. Rewritten self-hosted backend. Built on Effect SQL, with PostgreSQL,

Every release.

29 releases since April 2025.

Version 3

New

c15t v3 is out.

Install c15t to get v3.

Read the upgrade guideSee what is new in v3

Version 3

1 release, October 2026

  1. 3.0.0

    c15t 3.0.0: The Open Standard for Cookie Banners

    LatestBreaking changes

Version 2

4 releases, April 2026 to August 2026

  1. 2.2.0

    c15t 2.2.0: Consent-Aware Embeds, Configurable Controls, and More Integrations

    Minor release

    Minor release adding consent-aware Google Maps and YouTube components, a configurable consent controls toolbar, eight script integrations, a reusable SDK hook, policy-aware action styling, CSP nonce support, reliability fixes, and new translations.

  2. 2.1.0

    c15t 2.1.0: Expanded Script Integrations and Provider Registry

    Minor release

    Minor release expanding the consent-aware script loader with a registry-backed provider system, more prebuilt integrations, stronger lifecycle utilities, CLI discovery updates, and German translation refinements.

  3. 2.0.1

    c15t 2.0.1: TanStack Devtools Support & Tailwind Import Ordering

  4. 2.0.0

    c15t 2.0.0: New Styling System, Policy Packs, Backend v2 & More

    Major releaseBreaking changes

    Stable release notes for c15t 2.0, covering the token-based styling system, policy packs, GPC, IAB TCF 2.3, bundled docs, c15t/skills, dev tools, backend v2, migration tooling, and the prebuilt UI.

Version 1

24 releases, April 2025 to January 2026

  1. 1.8.3

    c15t 1.8.3: Experimental Global Privacy Control Support & Bug Fixes

  2. 1.8.2

    c15t 1.8.2: React Bug Fixes

  3. 1.8.0

    c15t 1.8.0: Cross-Subdomain Consent, Legal Links, User Identification & EU Languages

    Minor release

    Feature release adding cross-subdomain consent persistence via cookies, configurable legal links in components, user identification tracking, and comprehensive language support with all 24 EU official languages.

  4. 1.7.1

    c15t 1.7.1: CLI Improvements & Bug Fixes

  5. 1.7.0

    c15t 1.7.0: Script Loader & iFrame Blocking

    Minor release

    Minor release with a new approach to script loader and iFrame blocking.

  6. 1.6.1

    c15t 1.6.1: React Scroll Lock Fix

  7. 1.6.0

    c15t 1.6.0: New Docs, Rebuilt Self-Hosting Backend, Better Callbacks, and More

    Minor release

    Minor release with a rebuilt self-hosting backend, a brand new docs site, improved consent checking, and callback improvements.

  8. 1.5.0

    c15t 1.5.0: Next.js Pages Support, GDPR Button Order, Backend Enhancements

    Minor release

    Minor release adding Next.js Pages Directory support and updating cookie banner button order for GDPR guidance, alongside backend and integration improvements.

  9. 1.4.4

    c15t 1.4.4: Theme Inheritance Stability and Maintenance Updates

  10. 1.4.3

    c15t 1.4.3: Theme Inheritance Fixes for Provider-Scoped Themes

  11. 1.4.2

    c15t 1.4.2: Indonesian Translations, Provider Render Fixes, URL Normalization

  12. 1.4.1

    c15t 1.4.1: Next.js: Custom c15t Headers for Initial Fetch

  13. 1.4.0

    c15t 1.4.0: Ignore Geo, Provider DX, Store Config, A11y, CLI Fixes

    Minor release

    Minor release improving developer experience with ignoreGeoLocation and consentCategories, adding a debug-friendly store config prop, enhancing accessibility, and fixing CLI onboarding issues.

  14. 1.3.3

    c15t 1.3.3: GTM Support, CookieBanner Focus Toggle, Next.js URL Validation

  15. 1.3.2

    c15t 1.3.2: Next.js Relative URL Fix

  16. 1.3.1

    c15t 1.3.1: Next.js Data Fetching Refinements, Docs Fixes, and zh Translations

  17. 1.3.0

    c15t 1.3.0: Translations Package, SSR Consent, CLI Telemetry, and Next.js Restructure

    Minor releaseBreaking changes

    Minor release introducing the new @c15t/translations package with 8 languages, server-side consent initialization, CLI telemetry and onboarding upgrades, and a Next.js package restructuring that removes middleware exports. Includes backend translation support, improved schemas, and infrastructure/tooling updates.

  18. 1.2.1

    c15t 1.2.1: API Architecture Hardening, Translations Cleanup, and Tailwind v3 Fix

  19. 1.2.0

    c15t 1.2.0: Backend Architecture Overhaul & Translation System Refactor

    Minor releaseBreaking changes

    Major release introducing a complete backend refactor to oRPC client/server architecture with OpenAPI support, CORS middleware, and streamlined translation system with common strings consolidation. Includes breaking changes for translation structure.

  20. 1.1.5

    c15t 1.1.5: Tailwind CSS v3 Compatibility & Style Fixes

  21. 1.1.4

    c15t 1.1.4: Translation System Fixes & Core Improvements

  22. 1.1.3

    c15t 1.1.3: Enhanced Theming & Callback Improvements

    Breaking changes

  23. 1.1.2

    c15t 1.1.2: Optimistic UI & Bundle Optimization

  24. 1.1.1

    c15t 1.1.1: Bundle Reduction Update