For information about the future work related to localization, see Future work.
Migrate fuchsia.intl.PropertyProvider change watcher API to a hanging get design and migrate all existing clients.
Instead of having a single fuchsia.intl.PropertyProvider implemented by the intl component, demonstrate best practices for embedding custom PropertyProviders in session component implementations, ideally with multi-user use cases.
Wire up Dart's Platform.localeName (blocked by Dart SDK #37586).
Wire up and verify Chromium's navigator.language and navigator.languages.