impeccable Releases

The extension now executes the detector logic using WebAssembly in an offscreen document, allowing it to bypass Content Security Policy (CSP) restrictions while running the same rules as CLI and live mode.

Sep 4, 2026

Introduces binary execution via `npx`, resolving platform-specific packages or downloading a checksum-verified engine. This release also removes the JavaScript detector API in favor of the WebAssembly module.

Sep 4, 2026

Eliminates the need for Node.js or npm by shipping a platform-specific launcher. It significantly improves performance and unifies the rule engine across all surfaces (CLI, extension, live mode) to ensure consistent behavior.

Sep 4, 2026

Minimal release notes: "Prebuilt impeccable engine binaries (engine-v0.1.0). The launcher, the npm shim and impeccable install download these on"

Sep 4, 2026

Updates focus on making comps executable contracts with phase gates and improving compatibility across various development harnesses and tools.

Sep 2, 2026

Bundles the detector accuracy fixes from v4.1.2 into the extension engine to improve detection precision in the browser.

Aug 26, 2026

CLI updates aligning with the Skill v4.1.2 fixes, including faster static scans and improved monorepo support.

Aug 26, 2026

This release focuses on stability and accuracy, fixing Grok and Codex hooks, resolving monorepo design system conflicts, and reducing detector false alarms.

Aug 26, 2026

Improvements to the review process, specifically regarding screenshot handling, allowing users to push back on bad results.

Aug 14, 2026

Extension engine update focusing on gradient and image detection accuracy to eliminate false positives.

Aug 14, 2026

CLI release fixing contrast assumptions, adding scoping to waivers, and correcting shell command quoting issues.

Aug 14, 2026

A major feature release introducing native app verification, 'Comp-first' or 'Code-first' modes, and improved board UI.

Aug 14, 2026

Extension engine update to fix stylesheet versioning and retire the `single-font` rule.

Jul 30, 2026

CLI release fixing documentation scanning, versioned stylesheet links, and tracking detection thresholds.

Jul 30, 2026

Skill release focusing on the review process, comp fidelity, and native subagent support for Copilot and Cursor.

Jul 30, 2026

The browser extension received an updated rule engine featuring new checks for kickers and radial glows, alongside improved stylesheet scanning and false-positive hardening.

Jul 28, 2026

CLI 3.4.0 implements the ban on kickers, introduces a dedicated radial spotlight rule, expands stripe scanning to standalone CSS files, and improves scan performance by skipping hidden directories.

Jul 28, 2026

The decision page received significant architectural updates, including shared card anatomy, real-time sketch rendering with greeked text, and a finalized verdict scoring system. The update also bans eyebrow labels and introduces a documentation generation process based on the built page.

Jul 28, 2026

This update focuses on security, specifically addressing CORS and directory traversal vulnerabilities. It also fixes Live mode regressions in React and Vite environments and adds first-class support for TanStack Router and Start.

Jul 23, 2026

Fixes for user-level installs and hook paths, improved `skills update` command, and an advisory em dash rule alongside a new undersized text rule.

Jul 22, 2026