No matter which one of the Flutter release channels
you follow, you can use the
flutter command to upgrade your
Flutter SDK and the packages that your app depends on.
flutter command to work correctly,
pubspec.yaml file must require the Flutter SDK.
For example, the following snippet specifies that the
flutter_test packages require the Flutter SDK:
name: hello_world dependencies: flutter: sdk: flutter dev_dependencies: flutter_test: sdk: flutter
Upgrading the Flutter SDK and packages
To update both the Flutter SDK and the packages that your app depends on,
flutter upgrade command from the root of your app
(the same directory that contains the
$ flutter upgrade
This command first gets the most recent version of the Flutter SDK that’s available on your Flutter channel. Then this command updates each package that your app depends on to the most recent compatible version.
If you want an even more recent version of the Flutter SDK,
switch to a less stable Flutter channel
and then run
Switching Flutter channels
Flutter has four release channels: stable, beta, dev, and master. We recommend using the stable channel unless you need a more recent release.
To view your current channel, use the following command:
$ flutter channel
To change to another channel, use
flutter channel <channel-name>.
Once you’ve changed your channel, use
to download the Flutter SDK and dependent packages.
$ flutter channel dev $ flutter upgrade
Upgrading packages only
If you’ve modified your
pubspec.yaml file, or you want to update
only the packages that your app depends upon
(instead of both the packages and Flutter itself),
then use one of the
flutter pub commands.
To get all the dependencies listed in the
without unnecessary updates, use the
$ flutter pub get
To update to the latest compatible versions of
all the dependencies listed in the
$ flutter pub upgrade
We publish breaking change announcements to the Flutter announcements mailing list. You can also ask questions on the Flutter dev mailing list. Aside from subscribing to receive announcements, we’d love to hear from you!
Selecting a specific version
If you have a specific version of Flutter that you’d like to switch to,
you can use the
flutter version command:
$ flutter version v1.9.1+hotfix.3
To pin packages to specific versions, specify their versions explicitly in the
pubspec.yaml file. For more details on the format of this file, see the
pubspec.yaml documentation on dart.dev.