Picking the right channel
One final item we need to cover before diving into building apps is the concept of channels. Flutter segments its development streams into channels, which is really just a fancy name for Git branches. Each channel represents a different level of stability for the Flutter framework. Flutter developers will release the latest features to the master channel first. As these features stabilize, they will get promoted to the beta channel, and then to the stable channel.
In previous Flutter versions, there was also a dev channel, between master and beta, but this was removed. The Flutter versioning policy will probably be updated in the near future, so please have a look at the Flutter build release page at https://github.com/flutter/flutter/wiki/Flutter-build-release-channels for the latest versioning updates.
Most of the time, you will probably want to stick to the stable channel. This will make sure that your code mostly runs without any...