2.7.0

New Features

• Added support for Delta Sync Feature
  Delta Sync allows you to perform automatic synchronization with an AWS AppSync GraphQL server. The client will perform reconnection, exponential backoff, and retries when network errors take place for simplified data replication to devices. For more details, please refer documentation.

Bug Fixes

• Fixed issue where if a timeout error occurred due to lack of network availability, the callback would not be given back to the developer. See issue #91

Misc. Updates

• Officially convert project to Swift 4.2. Previously, the project used some Swift 4.2 idioms even though the SWIFT_VERSION was officially set to 3. This change makes the support explicit in the project files and README.
• Updated SwiftReachability dependency to 4.3.0. (See PR #84)[https://github.com//pull/84] Thanks @larryonoff! 🎉
• Replaced generic struct based AWSAppSyncClientError by a typed enum. (See PR #35)[https://github.com//pull/35] Thanks @MarioBajr! 🎉