Proxy Instance Kernel Version Release History

2025-10-30

2.25.09.000

New features:

• Read/Write splitting is available for SQL statements starting with WITH.
• When you execute SET SESSION using the Prepare protocol, the statement can be synchronized to read replicas.

2025-07-30

2.25.06.000

• New feature: PAD_CHAR_TO_FULL_LENGTH SQL mode
• Fixed issues:
  • Optimized the retry logic for global consistency errors.
  • Optimized the Prepare Close processing logic.

2025-04-30

2.25.03.000

New features:

• Optimized global consistency performance
• Automatic request distribution among row store and column store nodes for an HTAP instance
• Read-only transactions for proxy instances in Read-only (TP) mode

2025-01-21

2.24.12.000

• New feature: HTAP Standard Edition
• Fixed issues:
  • Optimized the slow query log processing logic.
  • Optimized binlog pull for proxy instances.
  • Optimized .NET client adaptation.

2024-11-30

2.24.09.020

• New features:
  • IPv6 for proxy instances
  • Multi-tenancy for TaurusDB instances
• Fixed issues:
  • Fixed the issue that proxy resource reclamation is slow after SSL is enabled.
  • Fixed the issue that read requests cannot be split after transaction splitting is enabled, set autocommit=0 is used to start a transaction, and commit is used to commit the transaction.
  • Optimized the batch package processing logic.
  • Optimized the resetConnection processing logic.

2024-07-30

2.24.06.000

• Added binlog pulling through the proxy instance kernel.
• Fixed the issue that after transaction splitting is enabled, read requests after SELECT FOR UPDATE are sent to the primary node.

2024-05-07

2.24.03.000

Added the feature for assigning requests to row and column store nodes.

2024-01-15

2.23.12.000

• Added the feature for collecting statistics on slow query logs of proxy instances.
• Fixed the issue that there is a delay when a proxy instance synchronizes authentication information from the database kernel.

2024-01-04

2.23.09.002

Fixed the logic for proxy instances to retry service SQL statements after the database is faulty.

2023-11-13

2.23.09.001

Fixed the issue that an error is occasionally reported during execution of the prepared SELECT FOR UPDATE statement.

2023-10-20

2.23.09.000

• New features:
  • Change User protocol
  • Parsing of multiple hints
  • SHOW PROCESSLIST and KILL commands
• Fixed the issue that the set autocommit setting is synchronized to read replicas after transaction splitting is enabled.

2023-07-31

2.23.06.001

Resolved the increased backend database connections caused by enabling session connection pool.

2023-07-06

2.23.06.000

• Added binlog pulling through the proxy instance kernel.

• Optimized the performance of the PREPARE STMT protocol again.

2023-06-11

2.23.02.007

Fixed issues:

• Optimized the performance of the PREPARE STMT protocol.

• Resolved unexpected traffic allocation of the /* FORCE_SLAVE*/ Hint statement.

2023-04-27

2.23.02.000

Optimized the proxy instance performance.

2022-12-05

2.22.11.000

• Added multi-statement processing modes.
• Optimized the error messages reported during SQL statement execution in some scenarios.

2022-09-06

2.22.07.000

• New features:
  • Session-level connection pooling
  • Dynamic load balancing
• Optimized the logic for setting session-level transaction isolation levels of proxy instances. By default, the transaction isolation levels are synchronized with those of the database.

2022-06-15

2.7.5.0

Added Application Lossless and Transparent (ALT).

2022-05-06

2.7.4.0

• New features:
  • A query for more than 16 MB of data
  • Session consistency
• Optimized the way how metrics of read-only proxy instances are collected by Cloud Eye.

2022-04-01

2.3.9.8

Added batch execution of prepared statements.

2022-02-09

2.3.9.7

• New features:
  • Transaction splitting
  • Read-only mode
• Optimized the execution logic of prepared statements to improve performance.

2021-04-23

2.3.9.0

• Added proxy instance performance metrics Front-End Connections Created per Second, Transaction Queries per Second, and Multi-Statement Queries per Second.
• Fixed issues:
  • Optimized the database proxy performance.
  • Fixed traffic congestion occurring when your applications connect to a proxy instance over short connections.

2021-01-14

2.3.8.0

• Added the feature for obtaining client IP addresses through proxy instances.
• Fixed issues:
  • Fixed the issue that monitoring data of database proxy is inaccurate.
  • Shortened the downtime of proxy instances during a primary/standby switchover.

2020-10-14

2.3.6.0

Fixed issues:

• Fixed the issue of connection failures caused by database overload.
• Improved proxies' compatibility with MySQL protocols.

2020-08-14

2.3.1.0

New features:

• Maintaining connectivity between clients and database proxies.
• Monitoring performance metrics of proxy instances.