DevTools 2.7.0 release notes

Dart & Flutter DevTools - A Suite of Performance Tools for Dart and Flutter

General Updates

  • Improvements for initial page load time - #3309
  • Fix a couple scrollbar-related issues - #3393, #3401

Debugger Updates

Open file dialog

  • Add a copy button to the call stack view - #3334

Call stack view

CPU Profiler Updates

  • Added functionality to load an app startup profile for Flutter apps. This profile will contain CPU samples from the initialization of the Dart VM up until the first Flutter frame has been rendered. - #3357

Profile button

When the app startup profile has been loaded, you will see that the “AppStartUp” user tag is selected for the profile. You can also load the app startup profile by selecting this user tag filter, when present, in the list of available user tags.

User tag example

  • Added multi-isolate support. Select which isolate you want to profile from the isolate selector at the bottom of the page. - #3362

isolate selector

  • Add class names to CPU stack frames in the profiler - #3385

Class names


More details about changes and fixes are available in our changelog.