We're upgrading the Flutter version (from 3.32.4 to 3.38.5) along with several third-party packages we depend on.
Check out Flutter's breaking changes for details. Below are some notable ones:
dart:js_util package is now removed. The js package is now discontinued. You should migrate to the dart:js_interop package. Check out https://dart.dev/interop/js-interop/past-js-interop for migration steps.