1.7.0

• Update google-services.json due to FCM key expiration.
• Update SDK version to 1.7.0

1.4.0

• Updated SDK to 1.4.0.

1.3.0

• Updated SDK to 1.3.0.
• Applied sound effects and deep linking.
• Improved stability.

1.2.0

• Updated SDK to 1.2.0.
• Improved stability.

1.1.3

• Updated SDK to 1.1.3.
• Added call history and heads-up notification.