This is Signal's fork of libPhoneNumber-iOS, which is an Objective-C port of Google's libphonenumber.

If you want the latest metadata from libphonenumber...

1. Clone this fork.
2. Check out the version of libphonenumber (not libPhoneNumber-iOS) that you want to pull metadata from. Remember this <path>.
3. From the project root, run LIBPHONENUMBER=<path> make metadata. Use the <path> you remembered in the prior step.
4. Commit the changes to the signal-master branch and push the changes.
5. Update the dependency in the Signal iOS project as normal (using bundle exec pod update libPhoneNumber-iOS).