Updating NEXT_RELEASE_NOTES.md

When you add a user-facing change to DevTools, please add a release note entry to document this improvement.

This entry should be phrased in the past tense (e.g. “Added XYZ” instead of “Add XYZ”).

Release note entry

Use this format for the entry:

* Created the best feature ever. -
[#10000000001](https://github.com/flutter/devtools/pull/10000000001),
[#10000000002](https://github.com/flutter/devtools/pull/10000000002),
[#10000000003](https://github.com/flutter/devtools/pull/10000000003)

Find other examples in previous notes.

Adding images to a release note entry

Consider adding an image to the release note entry:

1. Add the image to the release_notes/images folder,

2. Reference it in the markdown, right after the release note entry:

   
       ![Accessible image description](images/my_feature.png "Image hover description")
   
   

Image style

Please use DevTools in dark mode when taking screenshots for release notes. We use a dark theme since this is the default theme for DevTools.

Image size

When adding images, be cognizant that the images will be rendered in a relatively small window in DevTools, and they should be sized accordingly. A wide aspect ratio is preferred so that the space of the release notes viewer can be used efficiently.

Generating release notes for the Flutter website

Release notes for DevTools are hosted on the Flutter website. They are indexed at https://docs.flutter.dev/tools/devtools/release-notes.

Prerequisite

Before continuing, ensure you have your local environment set up for contributing to the flutter/website repo.

Creating the release notes PR

Draft release notes on a local flutter/website branch using the following command:

devtools_tool release-notes -w /Users/me/absolute/path/to/flutter/website

Clean up the drafted notes on your local flutter/website branch and open a PR.

Testing the release notes in DevTools

Once you push up your branch to flutter/website and open your PR, wait for the github-actions bot to stage your changes to Firebase. Open the link it comments and navigate to the release notes you want to test. Be sure to add -src.md to the url to get the raw json. The url should look something like:

https://flutter-docs-prod--pr8928-dt-notes-links-b0b33er1.web.app/tools/devtools/release-notes/release-notes-2.24.0-src.md

• Copy this url and set _debugReleaseNotesUrl in release_notes.dart to this value.

• Run DevTools and the release notes viewer should open with the markdown at the url you provided.

• Verify the release notes viewer displays the new release notes as expected. Some issues to watch out for are broken images or ‘include_relative’ lines in the markdown that don't load properly.