# DevTools 2.29.0 release notes

> Release notes for Dart and Flutter DevTools version 2.29.0.



The 2.29.0 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools).

## General updates

* Fix a bug with service extension states not
  being cleared on app disconnect. - [#6547](https://github.com/flutter/devtools/pull/6547)

* Improved styling of bottom status bar when connected to an app. - [#6525](https://github.com/flutter/devtools/pull/6525)

* Added a workaround to fix copy button functionality in VSCode. - [#6598](https://github.com/flutter/devtools/pull/6598)

## Performance updates

* Added an option in the "Enhance Tracing" menu for tracking platform channel
  activity. This is useful for apps with plugins. - [#6515](https://github.com/flutter/devtools/pull/6515)

  ![Track platform channels setting](/assets/images/docs/tools/devtools/release-notes/images-2.29.0/track_platform_channels.png "Track platform channels setting")

* Made the Performance screen available when there is no connected app.
  Performance data that was previously saved from DevTools can be
  reloaded for viewing from this screen. - [#6567](https://github.com/flutter/devtools/pull/6567)

* Added an "Open" button to the Performance controls for
  loading data that was previously saved from DevTools. - [#6567](https://github.com/flutter/devtools/pull/6567)

  ![Open file button on the performance screen](/assets/images/docs/tools/devtools/release-notes/images-2.29.0/open_file_performance_screen.png "Open file button on the performance screen")

## CPU profiler updates

* Tree guidelines are now always enabled for the
  "Bottom Up" and "Call Tree" tabs. - [#6534](https://github.com/flutter/devtools/pull/6534)

* Made the CPU profiler screen available when there is no connected app.
  CPU profiles that were previously saved from DevTools can be
  reloaded for viewing from this screen. - [#6567](https://github.com/flutter/devtools/pull/6567)

* Added an "Open" button to the CPU profiler controls for loading data that
  was previously saved from DevTools. - [#6567](https://github.com/flutter/devtools/pull/6567)

## Network profiler updates

* Network statuses now show with an error color when the request failed. - [#6527](https://github.com/flutter/devtools/pull/6527)

## Full commit history

To find a complete list of changes in this release, check out the
[DevTools git log](https://github.com/flutter/devtools/tree/v2.29.0).