Spitfire 0.31.0 release notes
Released: 2026-10-10
- Browser step: next to the protocol load, a few real browser (headless Chromium) VUs take a user journey (open the page, click, type, wait, check the text) and measure what the user sees: LCP, CLS, INP, TTFB and load time. The Browser card on the run page colours them with Google's thresholds and says when a busy runner (browser_lag) makes them unreliable.
- New image usespitfire/spitfire:<version>-browser: runners with Chromium label themselves browser, and runs with browser steps go only to them. The Runners page offers this image when adding a runner. License: browser VUs per run, free 1, Growth 5, Scale 20, Enterprise unlimited.
Updating
Your installation tells you about a new release itself: admins see its notes and the update command for that installation at the top of the UI. The command backs up the database first and keeps the settings (Updating). You can also follow new releases with the RSS feed.