Changelog 2025.06

2025.06

Features & Improvements

In June we added experimental support for running ordinary Playwright Test JS scripts in a load test, by request only for the time being! Please email help@loadster.com if you’d like it enabled for your account.

Other improvements:

  • Dates and times are now displayed with clear timezone indication, showing the full timezone on hover in many places.
  • The GCP cloud configuration now launches bigger instances by default, for better performance and throughput.
  • The sidebar in the scenario editor is now sticky so it remains visible when scrolling scenarios with many bot groups.

Bug Fixes

  • Fixed a problem with playing external scripts with the Loadster CLI.
  • Fixed a bug in the onboarding overlay styles that affected new users.
  • Reverted the shareable test report link to the old format.

Further Reading

The experimental Playwright Test support is a major change. Loadster already supports Protocol Bots for HTTP-level scripting and Browser Bots for recorded browser interactions, but Playwright Test scripts let you bring your own standard JavaScript test code and run it at scale. If your team already maintains Playwright Test suites for functional testing, you can now reuse those same scripts for load testing and site monitoring without rewriting anything.

The bigger default GCP instances in cloud regions mean more CPU and memory per engine, which translates to better performance and the ability to run more concurrent browser bots per instance. This is particularly relevant for browser-based and Playwright tests, which are more resource-intensive than protocol-level scripts.

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