Changelog 2026.03

Maintenance Windows

Loadster had a concept of monitoring maintenance windows previously, but you could only use them to mute notifications, not to stop monitors from running altogether. Now you can choose whether to stop a monitor completely during a maintenance window, or to let it run but mute notifications.

You can configure maintenance windows in the Monitoring tab of Settings. The Settings section has also been cleaned up to make maintenance windows and other configuration easier to find.

If you associate the maintenance window with a notification policy, it will mute all notifications from that policy during the window. If you associate the maintenance window with a monitor directly, it will stop the monitor from running any cycles while the maintenance window is in effect.

Playwright Timeout Settings

Playwright scripts now have their own configurable navigation and action timeouts. The new Playwright Bots section in Settings lets you adjust these values. The settings are passed through to the Playwright runtime automatically.

Playwright Trace Improvements

Several improvements now make your Playwright traces more informative and reliable, especially on complex sites:

• Traces with unusually large files (such as 3D models) are now trimmed automatically. Playwright’s trace viewer degrades gracefully when resources are missing, so you still get a useful trace without the bloat.
• Screenshots are now captured correctly even when the browser crashes.
• The Videos and Screenshots tabs are back in the Playwright results modal of the script editor.
• Temporary storage in player containers is now limited to prevent oversized traces from filling up the filesystem.
• Fixed some GPU-related errors when testing WebGL/3D sites in Docker containers.

Other Improvements & Bug Fixes

• Removed Chrome’s own update checks from the network throughput reported by a load test.
• Page resources in scripts can now be edited in place again, instead of requiring delete and recreate.
• Improved automatic naming for tests and the ability to rename tests while they’re starting or running.
• Fixed minor issues with trace collection and console logging.
• After a script finishes playing, the results view now switches to the Page Timings tab automatically.
• Resources in browser traces that have network errors now show information about the error (when no HTTP status was present or no response was received).