- #410 Drop support for PHP 5.3
- #411 Use traits for common API operations
- #414 Use short array syntax
- #404 Fix serialization logic
- #417 Remove
ExternalAccount
class - #418 Increase test coverage
- #421 Update CA bundle and add script for future updates
- #422 Use vendored CA bundle for all requests
- #428 Support for automatic request retries