Version 2.9.1

1. Fixed bugs.

Version 2.9.0

1. Supported MySQL 5.7.
2. Supported various encodings including UTF-8.
3. Supported distinction between NULL and empty string.
4. Supported the BLOB field.

Version 2.8.2

1. Optimized SDK memory usage.
2. Supported the VPC authentication, allowing you to use the SDK via both private and public networks.

Version 2.8.0

1. Optimized the internal authentication logic.
2. Reduced the number of user parameters that need to be configured.

Version 2.7.2

1. Filled the db value in the DDL statement result.

Version 2.7.0

1. Supported seconds-level HA switch at the data subscription channel backend.
2. Added the SDK monitoring metric report feature.

Version 2.6.0

1. Supported subscribing to multiple channels via a single SDK.
2. Supported subscribing to "stop", "start" and other operations on Client.
3. Supported the serialization of DataMessage.Record.
4. Optimized the SDK performance and reduced the resource consumption.

Version 2.5.0

1. Fixed bugs occurred with small probability in high-concurrency scenarios.
2. Supported the globally unique auto-increment ID recorded in transactions.

Version 2.4.0

1. Optimized the subscription logic by working with the backend to accurately display SDK's current consumption time point.
2. Fixed the problem occurred while encoding a few special characters at the backend.
3. Fixed multiple compatibility issues. We recommend that users who use earlier versions upgrade the SDK to this version as soon as possible.