GitHub retires the Spark app-building workbench
GitHub reached the retirement date for the Spark experience on github.com. Existing deployed apps continue to run, but the Spark workbench is no longer the supported editing path; GitHub had already retired the bundled GitHub Models inference service on 30 July.
Why it matters: A deployed Spark app can appear healthy while its editing surface and any `llm()` calls have separately stopped working, leaving code ownership, inference credentials, billing and maintenance unresolved.