Changelog

September 27, 2026

CLI 0.37.0: API Access for Coding Agents

The CLI can now show the supported visual review API calls and how to use them. Agents can inspect builds, screenshots, comparisons, and images, then record review decisions with a signed-in user account. See the API schema.

September 27, 2026

Swift SDK 0.2.0: CLI Plugin for SwiftUI Previews

The Vizzly CLI can run SwiftUI #Preview declarations in an iOS Simulator. Review the screenshots through local TDD or a Vizzly cloud build.

September 27, 2026

Better Fullscreen Review on Mobile

Fullscreen review works better on smaller screens. Image zoom behaves more predictably, and the review controls fit mobile layouts.

September 8, 2026

CLI 0.36.0: Local Reports and Agent Workflows

CLI 0.36.0 saves a local report after your screenshot tests and gives agents a command to inspect the results. It also updates comparison reviews, keeps custom metadata separate from screenshot options, and reports upload failures while other captures continue. See the agent workflow.

August 30, 2026

Simpler Visual Review

Vizzly now has one review flow for changed and new screenshots. Identical screenshots need no action, and a build is approved when every changed or new comparison is approved. Read the current review docs.

August 27, 2026

Storage Reclaim for Team Plans

Team and Open Source admins can free storage by selecting older builds and removing their screenshot and comparison files. Build details stay available, and baselines are protected.

August 2, 2026

Cleaner Diffs When Pages Change Height

Full-page screenshots can get noisy when a banner appears or disappears near the top. Vizzly now aligns one clear inserted or removed block before comparing the rest, so real changes below it stay easier to review.

July 13, 2026

GitHub PR Checks on the Free Plan

GitHub integration is now available on the Free plan. Connect a repository and get Vizzly visual review results back in pull requests without moving to a paid plan just to close the loop.

June 17, 2026

Faster Screenshot Uploads for Repeated Images

When the same screenshot shows up across builds, Vizzly can now identify it by its SHA before asking CI to upload the image again. Reused images skip the extra transfer and go straight into the build when their stored data is available.

June 12, 2026

Smart Ignore Regions

This feature is no longer part of Vizzly.

Vizzly can now learn repeated dynamic areas from real review history and ask you to confirm them. Future builds can reuse that signal without hiding the rest of the screenshot.

May 25, 2026

Review UI Refresh

The review experience got a visual refresh. Fullscreen review, queues, drawers, dashboards, setup, and settings now feel more consistent across the app.

May 6, 2026

A Better Fullscreen Review Flow

Fullscreen review now keeps navigation, diffs, comments, and preview context closer together.

April 30, 2026

SDK Visual Context Bundles

SDKs can now carry reviewed visual context, not just upload screenshots.

March 5, 2026

Agent-Friendly Test Output

The test runner can now produce compact output that is easier for coding agents to read.

February 21, 2026

Large Build Review Gets Faster

Large builds now load in smaller chunks instead of pulling the whole review at once.

February 16, 2026

Preview Hosting for In-Context Review

Visual diffs are great, but sometimes you need to see the actual app. Now you can upload your static build—Storybook, Next.js export, Vite output, whatever—and Vizzly hosts it alongside your visual regression results. Run vizzly preview ./dist in CI or locally, and reviewers get a side-by-side view: the screenshot diffs on one side, the live app on the other. Content-addressed storage means incremental uploads are fast (typically under 5 seconds), and deduplication keeps storage lean.

January 31, 2026

Storybook & Static-Site SDKs Now Use Playwright

We migrated both the Storybook and Static-Site SDKs from Puppeteer to Playwright – and the results are dramatic. Screenshots that were timing out after 60+ seconds in CI now complete in under a second. For Storybook specifically, we added client-side navigation between stories instead of full page reloads, which gives you a 47x speedup (94 seconds down to 2 seconds for 10 screenshots). We also audited and fixed Chrome browser flags that were causing hangs in headless mode. If your Storybook or static site tests have been flaky in CI, this update should fix it.

January 30, 2026

Regions Now Work in Local TDD

This feature is no longer part of Vizzly.

Your cloud-defined hotspot regions now work in local TDD mode. When you download baselines from the cloud, your confirmed regions come bundled with them and are saved to .vizzly/regions.json. During local comparisons, if 80% or more of the diff falls within confirmed regions, the comparison auto-passes as "region-filtered." Press G in the fullscreen viewer to see green region overlays on your screenshots. Same behavior as the cloud product, same 80% threshold – just running locally.

January 29, 2026

Full-Screen Review Queue Filters

Filters now persist when you enter fullscreen review mode. Apply filters in the table view – viewport, browser, status, custom metadata – and they carry over to the review queue. The new filter panel has an industrial control panel design with semantic status chips for quick filtering. When you approve all items in a filtered view, it auto-switches to the "All" tab so you're not staring at an empty queue.

January 28, 2026

CI Resilience & Quality of Life

A batch of improvements to make Vizzly play nicer in CI environments. The vizzly finalize command now exits gracefully when no build exists (warns instead of failing your pipeline). You can set build names via the VIZZLY_BUILD_NAME environment variable instead of CLI flags. And if the Vizzly API returns a 5xx error, your CI won't fail – we'll warn and continue. For enterprises, users signing up with email/password now auto-join their org when their email domain matches a configured SSO domain.

January 27, 2026

Email Notifications for Mentions & Reviews

Mention and reply emails remain. Review assignment and completion emails were retired.

Stay in the loop without living in the dashboard. Vizzly now sends email notifications when someone @mentions you in a comment, replies to your thread, assigns you to review a build, or when your build review is completed. Each notification type has its own toggle in your profile settings, and every email includes a one-click unsubscribe link. All notifications are on by default – we'll let you know when something needs your attention.

January 20, 2026

Auto-Approve Baseline Branch Builds

This feature is no longer part of Vizzly.

If you trust your main branch, tell Vizzly. Enable auto-approve for your baseline branch and builds on main (or whatever you've configured) will approve automatically. No more clicking through screenshots you already reviewed on the PR. You can set an optional threshold – only auto-approve if the max diff is below X% – and manual approvals on auto-approved builds still train hot spot detection.

January 18, 2026

Builds List Redesign with Sortable Columns

The table and URL filters remain. Approver and automatic approval filters were retired.

The builds list got a proper table layout with sortable columns. Click the column headers to sort by date, status, branch, or approver. We added an expandable filters panel for power users – filter by environment, PR status, approver (with avatars!), or branch. Your filter selections sync to the URL, so you can bookmark or share filtered views.

January 17, 2026

Screenshot Property Filters

Finding the right screenshot in a large build just got easier. The screenshot table toolbar now has filters for viewport, browser, comments, and your custom properties. System filters (viewport, browser, comments) sit on the top row, custom properties below. If you've got a ton of custom properties, the first four show inline and the rest collapse into a dropdown.

January 14, 2026

Grouped PR Comments for Monorepos

Got multiple Vizzly projects in one repo? Your PRs were getting noisy with separate comments for each project. Now Vizzly posts a single grouped comment per repository, with each project in a collapsible section. Comments update incrementally as each project's build completes – "Processing..." while running, full results when done. Much cleaner for monorepos.

January 13, 2026

Faster Keyboard-Driven Reviews

Power users who blaze through reviews with keyboard shortcuts were hitting some rough edges – auto-select jumping around, seeing the same screenshot twice, laggy feedback. We rewrote the full-screen review queue with optimistic updates. Now when you press A to approve, the UI updates instantly and auto-advances to the next screenshot. The server catches up in the background.

January 12, 2026

Faster Comparisons Across the Stack

We went on a performance tear. Honeydiff's SSIM calculation is now 5x faster thanks to integral images (summed area tables) and Rayon parallel processing – Full HD comparisons dropped from 239ms to 51ms. When screenshots are identical, we skip SSIM entirely, saving ~250M operations per comparison. On the CLI side, SDKs now pass an explicit type field so the server skips O(n) base64 detection, and we fixed a catastrophic regex backtracking bug that was causing stack overflows on large screenshots. The result: noticeably faster test runs, especially for content-heavy pages.

January 7, 2026

Ember SDK for Visual Testing

Visual regression testing is now available for Ember.js apps. The Ember SDK uses Testem's custom launcher system to run browsers through Playwright, capturing screenshots directly from your acceptance tests. Your tests run exactly like before – QUnit assertions, Ember Test Helpers, the whole stack – you just gain the ability to add vizzlyScreenshot() calls. Check out the Ember docs →

December 21, 2025

Hot Spot Regions for Auto-Approval

This feature is no longer part of Vizzly.

Dynamic content got you down? Vizzly now learns which areas of your screenshots change frequently – timestamps, avatars, ad banners – and turns them into review candidates. The system uses honeydiff's cluster analysis to detect candidates, then you confirm which ones are legitimate hot spots. Once confirmed, future comparisons can auto-approve when all meaningful changes stay inside those trusted regions, with a clear audit trail showing exactly why.

December 20, 2025

Real-time TDD Dashboard Updates

No more waiting for the dashboard to refresh. We replaced HTTP polling with Server-Sent Events, so the TDD dashboard updates the instant your tests capture a screenshot. The connection auto-reconnects if it drops, and gracefully falls back to polling if SSE isn't available. Under the hood, this eliminated ~90% of HTTP traffic between your tests and the dashboard.

December 20, 2025

TDD Dashboard Design Refresh

The TDD dashboard was aligned with the shared visual review language used across the site. Same comparison modes (overlay, toggle, onion-skin), but running locally. We also redesigned the screenshot list with smart variant grouping, added browser/device icons to filters, and gave the settings page a proper two-column layout.

December 18, 2025

Delete Unwanted Screenshots

Captured a screenshot you didn't mean to? Now you can delete it right from the TDD dashboard. Hit the Delete button and it removes the comparison from the report and cleans up all associated files (baseline, current, diff). Previously, new screenshots had no action buttons – now you can Accept or Delete them.

December 17, 2025

Branded CLI Output

The CLI got a facelift. Run vizzly --help and you'll see our grizzly bear mascot, commands grouped by category, quick start examples, and dynamic context showing your TDD server status, project, and baseline count. We also built a complete TUI toolkit with helpers for lists, key-value tables, progress bars, and status badges that match the same visual review language as the rest of the product.

December 16, 2025

Smart Variant Tree Hierarchy

When you capture the same screenshot across multiple viewports or devices, the screenshot table now groups them into a collapsible tree. Click the parent row to expand and see all variants. Much easier to navigate when you've got a matrix of viewports × browsers × themes.

December 15, 2025

Mobile-First Fullscreen Review

Review screenshots on your phone or tablet with a proper mobile-first fullscreen UI. Collapsible menus, bottom sheet comments, touch-friendly controls, and optimized layouts for every screen size. We also improved the desktop fullscreen experience with better navigation and clear change descriptions.

December 15, 2025

Open Source Licenses Page

Transparency matters. We added a /licenses page that lists all 41 production dependencies with their licenses. Color-coded badges for MIT, Apache, BSD, and others, plus links to each package's repository. Auto-generated at build time so it's always up to date.

December 14, 2025

Keyboard-Driven Review Mode

Power users, this one's for you. We added a full keyboard-driven review mode for blazing through screenshot approvals. Press Space to enter review mode, then A to approve and R to reject – with auto-advance so you never have to reach for the mouse. Toggle diffs with D, switch view modes with T, and navigate with arrow keys. It's like vim for visual testing.

December 13, 2025

Unified Public & Authenticated Views

We consolidated public and authenticated views into one unified UI. No more separate code paths for public vs. logged-in users – just one clean interface that adapts based on your permissions. Authenticated non-members can now view public content (previously got 403 errors), and everyone saw the same polished visual review system. We deleted over 700 lines of redundant component code in the process.

December 13, 2025

Quiet-by-Default CLI Output

The CLI now stays quiet while your tests run and only speaks up when it has something useful to say. Zero output during test execution (your test runner owns the terminal), then a clean ASCII summary at the end. No emojis, no noise – just the facts. We also removed static HTML reports in favor of the live TDD dashboard (vizzly tdd start --open).

December 12, 2025

Per-Screenshot Comparison Overrides

Not all screenshots are created equal. Now you can override threshold and minClusterSize on individual screenshots. Strict 1.0 threshold for your checkout button, permissive 5.0 for that ad banner with dynamic content. The hierarchy is simple: screenshot-level beats config-level beats defaults. Thanks again to Kael from Vuetify for pushing us on this.

December 10, 2025

Cluster-Based Noise Filtering

Scattered single-pixel differences causing false positives? The new minClusterSize option filters out isolated pixels that are likely noise – anti-aliasing artifacts, font rendering variance, sub-pixel shifts. If diff pixels aren't grouped together, they're probably not real changes. Thanks to Kael from Vuetify for suggesting this feature.

December 9, 2025

Documentation Redesign

The docs redesign remains. References to the old review system are retired.

We completely rewrote the docs. Every page has been reviewed, rewritten for clarity, and updated with the latest features. The new docs use the BearDen-inspired local token language for a consistent look, and we added MCP API endpoints so AI assistants can search and read the docs directly.

December 6, 2025

Comparison Threshold Settings UI

Configure your comparison thresholds directly in the project settings UI. No more digging through config files or environment variables – just set your preferred sensitivity level and Vizzly remembers it for all your builds.

December 5, 2025

Swift SDK Auto-Detection

The Swift SDK now automatically captures device model, OS version, screen dimensions, and scale factor without configuration. Just call app.vizzlyScreenshot(name: "screen") and it figures out the rest.

December 4, 2025

CIEDE2000 Perceptual Color Difference

Honeydiff now uses CIEDE2000 for color difference calculations instead of YIQ. CIEDE2000 models how humans actually perceive color differences – your eyes are more sensitive to some colors than others, and CIEDE2000 accounts for that. The result: fewer false positives from colors that look identical but differ in RGB values, and better detection of changes that actually matter.

December 2, 2025

Custom Baseline Signature Properties

Testing the same screen with different data? Running visual tests in different environments? Testing A/B variations? Custom baseline signature properties let you pass metadata when capturing screenshots and configure which properties matter for baseline matching. Vizzly creates separate baselines for each variation automatically.

November 30, 2025

Platform Stability & Infrastructure

Behind the scenes improvements to make Vizzly more reliable. Graceful shutdown means zero downtime during deployments. Better error handling for GitHub integration handles network issues, API rate limits, and temporary outages. Plus fixes for edge cases in TDD cleanup, screenshot reporting, and JWT handling.

November 30, 2025

Hand-Written TypeScript Types for the CLI

The CLI now ships with hand-written TypeScript types instead of auto-generated ones. The auto-generated types were technically correct but hard to read and navigate. The new types are clean, documented, and actually helpful when you're integrating Vizzly into your tests.

November 29, 2025

Hotspot Filtering for TDD Mode

This feature is no longer part of Vizzly.

Ever get false positives from timestamps, animations, or other dynamic content? We taught Vizzly to reuse confirmed hot spot learning from the cloud in local TDD mode. Sync your baselines and TDD mode can pass comparisons when the meaningful changes are contained inside regions your team already accepted.

November 29, 2025

Multi-Project GitHub Integration

Got a monorepo? Now multiple Vizzly projects can connect to the same GitHub repository. Each project posts its own status check, so you can have separate visual testing for your web app, mobile web, and component library – all in one repo.

November 28, 2025

TDD Dashboard Redesign & Remote Builds Browser

We completely rebuilt the TDD dashboard to match the Vizzly cloud experience – same design system, same comparison viewer, same everything. Plus, there's a new Builds page that lets you browse your cloud builds and download baselines directly from the dashboard. Local and cloud finally feel like one product.

November 26, 2025

Smarter Auto-Approval with SSIM Guard

This feature is no longer part of Vizzly.

Auto-approval just got smarter. We added an SSIM (Structural Similarity) guard that prevents layout shifts from being auto-approved – even if the pixel difference is within threshold, structural changes get flagged for review. Plus, builds now auto-approve when all comparisons pass, saving you a click.

November 23, 2025

Enhanced Flaky Screenshot Detection

This feature is no longer part of Vizzly.

Flaky tests are the worst. We upgraded our flaky detection to classify why screenshots are flaky and score their instability. Now you can see at a glance which screenshots are genuinely unstable vs. which ones just had a one-time blip.

November 22, 2025

Reviewed UI Design System

We built the first shared design system layer for Vizzly. It gave us a complete component library with consistent theming, accessibility baked in, and documentation. We migrated the platform piece by piece: builds list, build detail view, settings pages, auth pages, dashboard, and navigation. The result was a UI that felt cohesive and loaded faster, and it informed the BearDen-inspired token language used on the marketing site today.

November 21, 2025

Redesigned Screenshot Review Experience

We completely rebuilt the screenshot comparison viewer from the ground up. New zoom controls, filmstrip navigation, and a comments sidebar that actually helps you review changes. Oh, and it works beautifully on mobile now – review screenshots from anywhere, even on your phone.

November 18, 2025

Swift SDK for iOS and macOS

Visual regression testing is now available for native iOS and macOS apps. The Swift SDK integrates directly with XCTest, bringing the same TDD-first workflow that web developers have been using to native app development. Add one line to your tests and get instant visual feedback. Check out the Swift docs →

November 10, 2025

MCP HTTP Endpoint for AI Assistants

This endpoint is no longer the supported agent workflow. Use the Vizzly CLI.

What if your AI assistant could just look at your failed visual tests and tell you what's going on? Now it can. We built an MCP HTTP endpoint that gives AI assistants direct access to your visual regression test data. Query build status, analyze failures, inspect actual screenshots, and get AI-powered debugging help – all through natural conversation. Check out the MCP docs →

October 26, 2025

Passkey Login Support

Passwords are officially overrated. We just added passkey authentication so you can sign in with Face ID, Touch ID, or your device's built-in security. One tap and you're in – no passwords to remember, no 2FA codes to fumble with. Your phone already knows it's you.

October 25, 2025

Vitest SDK

Vitest 4 just shipped visual testing, and we built a drop-in replacement that brings the full Vizzly experience to your Vitest tests. Same API you already use (toMatchScreenshot), but with local TDD workflows, team collaboration, and the Honeydiff engine under the hood. Zero code changes, way better features. Check out the Vitest docs →

October 20, 2025

README Badges for OSS Projects

Want to show off your visual testing setup? Now you can! Add a badge to your README that displays real-time status from your Vizzly builds. Static badge for branding or dynamic badge with live screenshot counts – both work great. Check out the badge docs →

October 16, 2025

CLI Authentication with OAuth

Managing API tokens across projects got a lot easier. Log in once with vizzly login, map projects to directories, and the CLI handles authentication for you. No more copying tokens between projects or setting up environment variables everywhere. Check out the authentication docs →

October 12, 2025

Static Site SDK

Got a static site? Now you can visually test every page without writing a single test. Our new Static Site SDK works with Gatsby, Astro, Jekyll, Next.js – basically anything that spits out HTML. Point it at your build directory and it discovers pages, captures screenshots, and handles the comparisons. Check out the Static Site docs →

October 11, 2025

AI Assistant Integrations

The old integration details are retired. Use the current Vizzly CLI context commands.

What if your AI assistant could help you debug visual regressions? Now it can. We built agent-ready visual testing workflows that bring AI-powered review into your editor. Get intelligent suggestions on whether to accept or fix changes, spot test coverage gaps, and set up Vizzly without leaving your flow. Check out the AI integration docs →

October 7, 2025

Storybook SDK

Running Storybook? Now you can visually test every story automatically. Our new Storybook SDK auto-discovers your stories and captures screenshots across viewports – no manual configuration required. Just point it at your static build and watch it work. Check out the Storybook docs →

October 6, 2025

Ruby SDK

Ruby developers, we see you. We built a lightweight Ruby SDK that works with RSpec, Minitest, Cucumber, and any other testing framework you throw at it. Same architecture, same simplicity – just POST screenshots to the CLI and let it handle the rest. Check out the Ruby docs →

October 2, 2025

Interactive TDD Dashboard

TDD mode just got a major upgrade. We built a real-time React dashboard that gives you instant visual feedback while you code. No more waiting for builds or refreshing static reports – just code, save, and watch your visual diffs appear live. Check out the new TDD mode →

September 24, 2025

Google OAuth Authentication

We just added Google OAuth to make signing up and signing in as smooth as possible. One click and you're in – no more password forms to fill out. Your future self will definitely thank you for this one.

September 23, 2025

Build Your Own SDK Documentation

Ever wanted to build a Vizzly SDK in your favorite language? Now you can! We created a comprehensive guide that walks you through building custom SDKs using our HTTP API. Ruby, Python, Go – we've got examples for all of them. Check out the guide →

September 15, 2025

New Comprehensive Documentation Site

Good documentation shouldn't be a luxury. We built docs.vizzly.dev from the ground up to be the kind of docs you'll actually want to read. Clear, practical guides that respect your time.

September 12, 2025

Public Properties for Embeddable Screenshots

Need to embed screenshots in your docs or share them publicly? We've got you covered with public properties. Clean public access without the security concerns – you only share exactly what you intend to.

September 7, 2025

OSS Plan & Automated Eligibility

Building something for the open source community? We love supporting that! Our new OSS plan automatically detects if your project qualifies and streamlines the application process. Open source projects deserve great tooling.

September 6, 2025

Enhanced Team Review System

This review system is no longer part of Vizzly.

We completely reworked our review system to make team collaboration actually enjoyable. Assign multiple reviewers, get notifications that matter, and work through approvals without the usual friction.

September 2, 2025

Redesigned Build Detail Page

You spend a lot of time reviewing build details, so we made sure they look good and work well. Complete redesign with improved UX and a visual hierarchy that guides you naturally through the information.

August 28, 2025

User Profile Pictures & UI Polish

Small things make a big difference. We added profile pictures throughout the platform and polished up the comment styling. It's amazing how much better everything feels when you can actually see who you're working with.

August 25, 2025

Parallel Build Support

Nobody likes waiting for builds to finish. We made them run in parallel so multiple builds can process simultaneously. Faster feedback means you can ship with confidence.

August 21, 2025

GitHub-like Review Assignment System

Review assignments are no longer part of Vizzly.

If you've used GitHub's review system, this will feel familiar. We took their best ideas and built a review assignment system that's genuinely pleasant to use.

August 18, 2025

Mentions & Notification System

Mentions and replies remain. Review assignment notifications were retired.

Getting someone's attention shouldn't be a guessing game. We built @mentions and a notification system that cuts through the noise so you can stay connected with your team without the chaos.

August 11, 2025

Screenshot-Level Comments

You know that feeling when you spot an issue in a screenshot but can only point and gesture? Those days are over. Comment directly on screenshots with threaded discussions and visual markers. Game changer.

July 20, 2025

Build Pipeline & CLI Improvements

No more builds failing for mysterious reasons. We improved reliability and added restart capabilities. Plus, our CLI graduated from prototype to genuinely useful. Your debugging sessions are about to get much smoother.

July 5, 2025

GitHub Integration

Connect your Vizzly projects to GitHub for seamless workflow integration. Automatic status updates on your PRs and repository connections that just work – your tools finally play nice together.

June 18, 2025

Vizzly Platform Launch

After months of building and testing, we're officially launching! Vizzly is here to make visual testing something you'll actually enjoy. Built by developers, for developers who care about shipping quality work.