Update `version` in `pubspec.yaml` to reflect this release, then
## Android
`flutter build appbundle --no-shrink`
This will create an android app bundle at `build/app/outputs/bundle/release/`
Upload the android bundle to the google play store https://play.google.com/apps/publish
## iOS
In xcode, Release -> Archive then follow the directions to upload to the app store. If you have issues, https://flutter.dev/docs/deployment/ios#create-a-build-archive