Release evidence / 0.4.0 candidate

Check the work behind the API.

OGJS owns canvas sizing, coordinates, framing, motion, interaction, lifecycle, and export. This page records how the current release candidate reduces application code, how you can repeat its performance measurements, and which checks protect the package.

Evidence date: 2026-08-23
Runtime dependencies: 0
Runnable examples: 61
Source package: Code + declarations

Developer adoption

Measured across every example listed in the public catalog.

61runnable examples reviewed

38examples with manual plumbing at the first scan

517authored lines removed

11.3%reduction across the reviewed example source

The authored-code comparison uses the same 61 files before and after the turnkey API pass: 4,574 lines became 4,057. It excludes blank lines, explanatory comments, and fenced browser-test probes.

Release gates

Each command fails the release when its boundary changes.

Gate	Checks	Run it
Portable correctness	Types, package build, unit coverage, and browser pixels.	`npm run evidence:portable`
Consumer package	Packed tarball installed into an isolated application.	`npm run verify:consumer`
Framework lifecycle	Angular build plus React, Vue, and Svelte adapter coverage.	`npm run verify:angular`
Language bridge	Java, C#, Go, PHP, and Rust emit the same protocol document.	`npm run verify:languages`
Site discovery	Every built page has crawl metadata and one sitemap URL.	`npm run build:site`

Performance method

Device measurements replace generic speed claims.

The performance lab creates a seeded workload, records its node and edge counts, and measures build, rendering, picking, grouping, CPU layout, and the accelerated layout path on your browser. Reports include the viewport and WebGL capabilities needed to interpret the result.

Saved profiles compare only with compatible profiles. Software-rendered GPU results remain labelled as software-rendered, so a CPU result cannot masquerade as a hardware comparison.

Run the performance lab Inspect a saved report

Trace a claim

Open the implementation surface that supports each statement.

Package boundary

The npm package carries JavaScript, TypeScript declarations, workers, and required package metadata. The website hosts fonts, icons, imagery, and geographic reference data. Applications choose and host their own visual assets.

OGJS is commercial software. The public site documents the API and runs its examples; the source repository remains private.