How to set build and version number of Flutter app

Setting the version and build number

You can update both the version name and the version code number in the same place in pubspec.yaml. Just separate them with a + sign. For example:

version: 2.0.0+8

This means

• The version name is 2.0.0
• The version code is 8

This is described in the documentation of a new project (but you might have deleted that if you are working on an old project):

The following defines the version and build number for your application. A version number is three numbers separated by dots, like 1.2.43 followed by an optional build number separated by a +. Both the version and the builder number may be overridden in flutter build by specifying --build-name and --build-number, respectively. Read more about versioning at semver.org.

version: 1.0.0+1

Re-enabling auto versioning

If your Flutter versioning is not automatically updating anymore, see this answer for how to fix it.

See also:

• How to get build and version number of Flutter app

Thanks to user abion47 for finding and condensing the following answer from the article Versioning with Flutter.

Re-enabling auto versioning

By default a Flutter project is set up to automatically update the Android and iOS settings based on the version setting in pubspec.yaml when you build the project. If, however, you have since overridden those settings, you can re-enable that behavior by doing the following:

iOS

Open the ios/Runner/Info.plist file. Set the value for CFBundleVersion to $(FLUTTER_BUILD_NUMBER) and set the value for CFBundleShortVersionString to $(FLUTTER_BUILD_NAME). The XML for the file should look something like this:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  ...
  <key>CFBundleVersion</key>
  <string>$(FLUTTER_BUILD_NUMBER)</string>
  <key>CFBundleShortVersionString</key>
  <string>$(FLUTTER_BUILD_NAME)</string>
  ...
</dict>
...

Android

Open the android/app/build.gradle file. Ensure you are properly loading the Flutter properties at the top of the file:

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    throw new GradleException("versionCode not found. Define flutter.versionCode in the local.properties file.")
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    throw new GradleException("versionName not found. Define flutter.versionName in the local.properties file.")
}

Then set the android.defaultConfig section so that versionName is flutterVersionName and versionCode is flutterVersionCode.toInteger():

android {
  ...
  defaultConfig {
    ...
    versionCode flutterVersionCode.toInteger()
    versionName flutterVersionName
  }
}

For me my version was

version: 1.0.0+1

and i changed it to

version: 1.2.0+1

then in terminal

flutter build appbundle --build-name=1.2.0+1 --build-number=2