Shopify theme release cadence: Horizon and Dawn compared
Shopify publishes theme releases openly, but nobody tracks them side by side. This page does, and we update it quarterly. Counting method and sources are at the bottom of this page; every figure below is reproducible from them.
What the release history shows
- Dawn has shipped three releases in the last twelve months — including v16.0.0 in August 2026, its first major version since July 2024, focused on moving stores to Shopify’s customer accounts.
- Horizon has shipped nineteen releases in the same period — one roughly every three weeks — and is on its fourth major version since launching in May 2025.
- A single Horizon release in December 2025 (v3.2.0, 239 files) changed more files than everything Dawn has shipped since, combined (187 files across v15.5.0 and v16.0.0).
| Dawn | Horizon | |
|---|---|---|
| First released | 2021 | May 21, 2025 |
| Current version | v16.0.0 — August 10, 2026 | v4.1.5 — August 31, 2026 |
| Releases, trailing 12 months | 3 | 15 |
| Major versions, trailing 24 months | 1 | 4 |
| Most recent major version | v16.0.0 — August 10, 2026 | v4.0.0 — June 15, 2026 |
| Largest single release, trailing 12 months | 112 files changed (v15.5.0) | 314 files changed (v4.0.0) |
Dawn release history
Every release in the trailing 24 months, plus the previous major version for reference. File counts are the diff against the preceding release.
| Version | Date | Files | Scope |
|---|---|---|---|
| v16.0.0 | August 10, 2026 | 75 | Major version. Moves the header to Shopify’s customer account experience; removes the legacy customer account templates and sections |
| v15.5.0 | June 19, 2026 | 112 | Storefront events support; product disclosures section; app, agent, and AI cart interactions without page reloads |
| v15.4.1 | December 4, 2025 | 8 | Patch. Five merged changes, three of which were translation updates |
| v15.4.0 | July 18, 2025 | 59 | Minor feature release |
| v15.3.0 | February 28, 2025 | 103 | Minor feature release; theme editor fixes |
| v15.2.0 | October 3, 2024 | 16 | Minor release |
| v15.0.0 | July 3, 2024 | — | Previous major version (outside the 24-month window; shown for reference) |
Two Dawn releases are worth reading closely, because they complicate the simple version of this story. v15.5.0 added support for standard storefront events and for app, agent, and AI cart interactions without page reloads — meaning Dawn is not excluded from agentic commerce. And v16.0.0, Dawn’s first major version in two years, moved the theme onto Shopify’s customer account experience. Both are platform-alignment work: Dawn continues to receive the support it needs to keep functioning on the current platform.
Horizon release history
Horizon’s public repository publishes no tagged releases, so this table is reconstructed from the version-bump commits in the repository itself (method below). It covers every version since the repository became public in July 2025; the two launch-period milestones above that line come from Shopify’s announcement and are lower-granularity. File counts are the diff against the preceding version.
| Version | Date | Files | Scope |
|---|---|---|---|
| v1.0 | May 21, 2025 | — | Launch (pre-repository; from Shopify’s announcement) |
| v2.0 | June 15, 2025 | — | First major version, approximately one month after launch (pre-repository) |
| v2.0.3 | July 30, 2025 | — | First version in the public repository |
| v2.1.0 | August 6, 2025 | 95 | |
| v2.1.1 | August 12, 2025 | 71 | |
| v2.1.2 | August 21, 2025 | 87 | |
| v2.1.3 | August 22, 2025 | 5 | |
| v2.1.4 | August 27, 2025 | 71 | |
| v2.1.5 | September 4, 2025 | 55 | |
| v2.1.6 | September 10, 2025 | 99 | |
| v3.0.0 | October 1, 2025 | 108 | Major version |
| v3.0.1 | October 20, 2025 | 128 | |
| v3.1.0 | November 3, 2025 | 94 | |
| v3.2.0 | December 11, 2025 | 239 | Five new sections, comparison slider, volume pricing, sticky add-to-cart, SKU display |
| v3.2.1 | December 18, 2025 | 150 | |
| v3.3.0 | February 3, 2026 | 135 | |
| v3.3.1 | February 12, 2026 | 52 | |
| v3.4.0 | February 18, 2026 | 94 | |
| v3.5.1 | May 22, 2026 | 221 | |
| v4.0.0 | June 15, 2026 | 314 | Major version; largest single release to date |
| v4.1.0 | June 18, 2026 | 71 | |
| v4.1.1 | June 24, 2026 | 21 | |
| v4.1.3 | July 16, 2026 | 117 | |
| v4.1.4 | August 11, 2026 | 108 | Current version |
| v4.1.5 | August 31, 2026 | 98 |
Shopify does not publish per-release notes for Horizon at Dawn’s granularity, so scope descriptions are only shown where they can be sourced. The version numbers, dates, and file counts are all verifiable from the repository.
What this does and doesn’t mean
It does not mean Dawn is being discontinued. No deprecation has been announced. Dawn still ships — it released a major version in August 2026 — and Shopify has published no end-of-life date. Anyone citing a deadline is inventing one.
It does not mean you should migrate. Plenty of stores are well served by the theme they’re on. Release cadence is one input into that decision and not the deciding one.
It does not tell you anything about your site’s speed. Theme release activity and site performance are unrelated questions. On a store that’s been customized, performance is driven far more by accumulated apps, scripts, tags, and image weight than by the underlying theme — so theme-versus-theme benchmarks say very little about any real store.
What it does show is where new storefront capability is being built. Dawn’s recent releases — storefront events, agentic cart support, the customer-accounts move in v16.0.0 — are platform-alignment work that keeps it current. Horizon’s releases add product capability: new sections, merchandising features, editor capability. Dawn receives the platform support it needs to keep working. Horizon receives the product development. Both of those are true at the same time, and the distinction is the useful part.
What’s theme-dependent and what isn’t
Not every recent Shopify capability requires a particular theme. This trips up a lot of coverage, so here’s the split as we understand it.
| Requires Horizon or a similarly block-based theme | Works regardless of theme |
|---|---|
| AI theme block generation in the editor | Sidekick |
| Deep block nesting (8 levels vs. 2 on Online Store 2.0 themes) | Agentic storefronts and UCP enrollment |
| Native swatches and the newer conversion-oriented section presets | Shopify Catalog |
| Combined listings (Shopify Plus) | Shopify Magic for product descriptions and admin tasks |
| Design presets and the block-first editor | Native A/B testing |
Re-verified against current Shopify documentation each Editions cycle. If a capability can’t be confirmed, it comes out of this table.
How we count
Both themes’ public GitHub repositories, linked below. Everything on this page is reproducible from them.
Any tagged version published to the Dawn repository, including patches.
Horizon’s repository publishes no tagged releases, so we count each commit that changes the theme version in config/settings_schema.json as a release of that version. History before the repository became public on July 18, 2025 — the launch and the first major version — comes from Shopify’s announcement and is shown at lower granularity.
A change to the leading version number.
The number of files in the diff of each version against its predecessor, as reported by the repository (git diff --name-only between the two versions).
We don’t weight releases by importance, estimate lines of code, or infer anything about roadmap or intent. This page reports what was published, and nothing beyond it.
Dawn releases on GitHub · Horizon repository on GitHub · Shopify changelog
If any figure here is wrong or has gone stale, tell us and we’ll fix it.
Questions
What is the current version of Shopify Horizon?
v4.1.4, released August 11, 2026. Horizon is on its fourth major version since launching in May 2025.
How often does Shopify update Horizon?
Frequently — nineteen releases in the trailing twelve months, roughly one every three weeks, with major versions arriving a few times a year. Cadence was near-weekly in its first months.
When was Dawn last updated?
v16.0.0, August 10, 2026 — a major version that moved the theme onto Shopify’s customer account experience. Its previous major version was v15.0.0 in July 2024.
Is Dawn still supported?
Yes. Dawn continues to receive updates — including a major version in August 2026 — and its June 2026 release added support for standard storefront events and for app, agent, and AI cart interactions. Shopify has announced no deprecation.
Does Horizon replace Dawn?
Horizon is the default theme for new stores, but Dawn has not been withdrawn and existing stores are not required to move.
Why is there such a gap in release activity?
Horizon is where Shopify is currently developing new storefront capability, and Dawn’s recent releases have centered on platform alignment. That’s an observation about published release history, not a statement from Shopify about either theme’s future.
Other things we publish
We’re Anatta, a Shopify agency. We track this because we migrate stores to Horizon, and because nobody else was publishing it. If you’d like to see how your own storefront measures up on speed, accessibility, and technical SEO, we’ll run a free scorecard.
