Update | Description | Release Date | Documentation |
Release AI Optimizer | TDSQL-C for MySQL released the AI optimizer feature, which automatically explores better execution plans through self-learning to help achieve automatic database tuning. | 2026-06-05 | |
New instance-level monitoring metrics | TDSQL-C for MySQL has added monitoring metrics for resource monitoring, engine monitoring, and deployment monitoring at the instance level. | 2026-06-02 | |
New monitoring metrics for database proxy | TDSQL-C for MySQL database proxy has added response latency-related monitoring metrics: SQL full-link average time consumption, DB execution average time consumption, and Proxy internal average time consumption. | 2026-06-02 | |
Database proxy version update | TDSQL-C for MySQL released database proxy version 1.3.22. | 2026-06-02 |
Update | Description | Release Date | Documentation |
Database proxy version update | TDSQL-C for MySQL releases database proxy version 1.4.7. | 2026-05-21 | |
Support for Automatic Storage Scale-up and Storage Overuse | TDSQL-C for MySQL supports automatic storage scale-up and storage overuse features, effectively preventing issues caused by insufficient storage space, achieving smooth expansion of storage resources, and ensuring stable business operations. | 2026-05-12 |
Update | Description | Release Date | Documentation |
Database proxy version update | TDSQL-C for MySQL released database proxy version 1.3.21. | 2026-04-30 | |
Cross-AZ deployment support added for Serverless | Cross-AZ deployment for TDSQL-C for MySQL Serverless clusters now supports deployment from Nanjing Zone 1 to Nanjing Zone 2 and from Bangkok Zone 2 to Bangkok Zone 1. | 2026-04-16 |
Update | Description | Release Date | Documentation |
Supports account CAM authentication | TDSQL-C for MySQL supports enabling the CAM verification (password-free login for accounts) feature for accounts, helping you simplify the complexity of account permission management and enhance database security and account management efficiency. | 2026-03-31 | |
Supports sparse backup | TDSQL-C for MySQL supports the sparse backup feature. By flexibly setting the backup schedule and retention policy, it enables configuring backup schedules at fixed frequencies on a "weekly/monthly/yearly" basis, helping you achieve fine-grained control over data preservation. | 2026-03-20 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.16.006 to improve database performance and stability. | 2026-03-13 |
Update | Description | Release Date | Documentation |
Support for rule-based elasticity | Support for rule-based elasticity was added in the serverless clusters of TDSQL-C for MySQL. By configuring rule-based elastic policies for different periods, you can meet business performance requirements across various time periods. | 2026-02-27 | |
Backup feature update | The backup feature of TDSQL-C for MySQL was updated to continuously enhance backup management and data protection capabilities. The updates are as follows: Added the redolog backup list in the console. Added cross-region backup support for automatic snapshot backups and log backups (binlog and redolog). Added backup frequency settings for automatic snapshot backups (weekly and high-frequency backup). | 2026-02-06 | |
Support for custom kernel minor versions | Custom kernel minor versions can be selected during cluster creation and kernel minor version upgrade in TDSQL-C for MySQL. You can select the version based on your business stage and needs: a stable version after long-term validation, or a new version with new features. | 2026-02-06 | |
Support for backup vaults | The backup vault feature was released for TDSQL-C for MySQL. It supports independent backup vault creation, backup file encryption within vaults, and a vault lock mechanism. This helps build an enterprise-level line of defense for backup data security, ensuring the security and compliance of database backups. | 2026-02-02 | |
Database Audit optimization | TDSQL-C for MySQL optimized Database Audit as follows. Added support for retaining the time filter when switching audit instances in the console's audit log query interface. Added support for batch pasting client IP addresses in the console's audit log filter. Introduced a new "Client Port" field to audit logs. Extended the allowed characters for custom COS paths used for audit log shipping to include the underscore ("_"). Included the "Error Code" parameter in rule templates. | 2026-02-02 |
Update | Description | Release Date | Documentation |
Analytic cluster feature update | The analytic cluster of TDSQL-C for MySQL added support for automatic mapping and account creation. | 2026-01-27 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 5.7 was updated to 2.1.14.001 to improve database performance and stability. | 2025-12-26 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.17.002 to improve database performance and stability. | 2025-12-26 | |
LibraDB kernel version update | A new kernel version 4.2509.1.0 was released for the analysis engine of TDSQL-C for MySQL. This release introduces multiple new engine features and also includes system fixes and optimizations. | 2025-12-24 | |
Database proxy version update | TDSQL-C for MySQL released database proxy version 1.3.20. | 2025-12-16 | |
Optimization for the cross-AZ deployment feature | TDSQL-C for MySQL optimized the cross-AZ deployment feature starting from December 16, 2025: In scenarios where a cluster failed, if the local switch of a cluster for which the cross-AZ deployment feature was enabled failed and the cluster became unavailable for 90 seconds, the cluster automatically performed a cross-AZ switch. Monitor the cluster operation status promptly. | 2025-12-16 | |
Release of a performance white paper for the compilation-optimized high-performance version | TDSQL-C for MySQL released a performance white paper for the compilation-optimized high-performance version, showcasing performance test data across different specifications in fully cached and large data set scenarios, which helped you understand the performance of the compilation-optimized high-performance version. | 2025-12-11 | |
Release of a new version of the performance white paper | TDSQL-C for MySQL released a new version of the performance white paper, which refreshed the performance test data across different specifications in fully cached and large data set scenarios for MySQL 8.0, providing a more reliable database choice for enterprise-level scenarios with strict performance requirements. | 2025-12-09 | |
Support for rolling configuration adjustment by the database proxy | The TDSQL-C for MySQL database proxy supports the option of rolling upgrade when the switch time for the configuration adjustment is set, and allows setting the switch waiting time. You can set the waiting time according to the actual business situation to achieve a smoother configuration adjustment. | 2025-12-03 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | The new kernel versions 4.2506.2.0 and 2.2410.14.0 were released for the analysis engine of TDSQL-C for MySQL, which supported many new kernel features, fixed system issues, and made optimizations. | 2025-11-27 | |
Supported Serverless clusters in a new region | TDSQL-C for MySQL clusters with Serverless instance mode now support Sao Paulo and Bangkok regions. | 2025-11-27 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | TDSQL-C for MySQL 8.0 kernel version was updated to 3.1.17.001 to improve database performance and stability. | 2025-10-25 | |
LibraDB kernel version update | The new kernel versions 3.2503.7.0 and 2.2410.13.0 were released for the analysis engine of TDSQL-C for MySQL, which support many new kernel features, fixed system issues, and made optimizations. | 2025-10-24 | |
Supported Serverless clusters in a new region | TDSQL-C for MySQL clusters with the instance mode of Serverless are supported in the Frankfurt region. | 2025-10-24 | |
New regions supported by the analysis engine | The regions Hong Kong (China) and Nanjing are supported for the analysis engine of TDSQL-C for MySQL. | 2025-10-22 | |
LibraDB kernel version update | The new kernel version 4.2506.1.0 was released for the analysis engine of TDSQL-C for MySQL, which supported many new kernel features and fixed system issues. | 2025-10-21 | |
LibraDB kernel version update | The new kernel version 3.2503.6.0 was released for the analysis engine of TDSQL-C for MySQL, which supported many new kernel features, fixed system issues, and made optimizations. | 2025-10-10 | |
Automatic row-based storage and column-based storage node forwarding policy supported by the database proxy | The database proxy version 1.4.5 supported configuring request forwarding to read-only or read-write instances when the read-only analysis engine failed. It also supported forwarding SQL requests to the read-only analysis engine based on the read weight. | 2025-10-10 | |
Viewing slow SQL details supported by the analysis engine | Slow SQL details and SQL analysis reports for read-only analysis engine instances could be viewed in the console. | 2025-10-10 | |
Supported cross-region data sources for analysis clusters | For business scenarios of cross-region instance deployment, aggregating data from instances in different regions into a TDSQL-C for MySQL analysis cluster is supported. | 2025-10-10 |
Update | Description | Release Date | Documentation |
Supported accessing analysis clusters through DMC | TDSQL-C for MySQL analysis clusters can be accessed through Database Management Center (DMC). | 2025-09-28 | |
Supported Serverless clusters in a new region | TDSQL-C for MySQL clusters with Serverless instance mode now support the Jakarta region. | 2025-09-28 | |
New regions supported by the analysis engine | The analysis engine of TDSQL-C for MySQL is supported in the Frankfurt region. | 2025-09-22 | |
LibraDB kernel version update | The new kernel versions 3.2503.5.0 and 2.2410.12.0 were released for the analysis engine of TDSQL-C for MySQL, which support many new kernel features and have made system issue fixes and optimizations. | 2025-09-15 | |
Support for custom private network domain names | TDSQL-C for MySQL supports enabling private network domain names for instances and database proxies, allowing for the use of custom private network domain names. Accessing the database through the private network domain name enhances the ability to distinguish the instances connected by applications while also meeting enterprise compliance requirements. | 2025-09-10 | |
TXSQL kernel feature update | TDSQL-C for MySQL 8.0 kernel version was updated to 3.1.16.003 to improve database performance and stability. | 2025-09-08 | |
Database Proxy Version Release Notes | TDSQL-C for MySQL released database proxy version 1.4.5. | 2025-09-08 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | The new kernel version 2.2410.11.1 was released for the analysis engine of TDSQL-C for MySQL, which supported many new kernel features and fixed and optimized system issues. | 2025-08-28 | |
Support for shipping database audit logs to COS | Database audit of TDSQL-C for MySQL supports shipping logs to Cloud Object Storage (COS). COS provides stable, durable, and low-cost storage services. Storing audit logs in COS can meet the need for long-term data storage. | 2025-08-12 | |
New regions supported by the analysis engine | The regions Virginia and São Paulo are supported for the analysis engine of TDSQL-C for MySQL. | 2025-08-05 | |
LibraDB kernel version update | New kernel versions 3.2503.4.0 and 2.2410.10.1 are released for the analysis engine of TDSQL-C for MySQL, which support many new kernel features and have made system issue fixes and optimizations. | 2025-08-05 |
Update | Description | Release Date | Documentation |
Database proxy version update | TDSQL-C for MySQL released database proxy version 1.3.19. | 2025-07-18 | |
TXSQL kernel feature update | TDSQL-C for MySQL 8.0 kernel version was updated to 3.1.16.002 to improve database performance and stability. | 2025-07-09 | |
LibraDB kernel version update | New kernel version 3.2503.1.0 was released for the read-only analysis engine of TDSQL-C for MySQL, which supported many new kernel features. | 2025-07-07 | |
Support for analysis clusters by TDSQL-C for MySQL | TDSQL-C for MySQL supports the creation of analysis clusters. Analysis clusters can provide users with more efficient data analysis, query, and aggregation capabilities. Analysis clusters can synchronize database and table data from multiple data sources to a read-only analysis engine instance in real time. Analysis clusters can merge databases and tables from different data sources to achieve data aggregation and querying. Analysis clusters use the LibraDB kernel to provide high-performance complex analysis and query capabilities. | 2025-07-07 |
Update | Description | Release Date | Documentation |
New regions supported by the read-only analysis engine | The regions Singapore and Chengdu (China) were supported for the read-only analysis engine of TDSQL-C for MySQL. | 2025-06-30 | |
Support for rolling upgrade by the database proxy | TDSQL-C for MySQL database proxy supports the selection of rolling upgrade during version upgrade. The rolling upgrade will start new database proxy version nodes. You can set the switch waiting time. When the switch time is reached, old database proxy version nodes will be reclaimed, and existing old connections on old nodes will be disconnected. | 2025-06-27 | |
LibraDB kernel version update | New issue-fixed version 2.2410.8.0 was released for the read-only analysis engine of TDSQL-C for MySQL. | 2025-06-25 | |
LibraDB kernel version update | New kernel version 2.2410.7.0 was released for the read-only analysis engine of TDSQL-C for MySQL, which supported many new kernel features. | 2025-06-20 | |
Database Audit optimization | TDSQL-C for MySQL optimized Database Audit as follows. Optimized the interface display after log shipping to CKafka is configured successfully. Added PREPARE to the feature string of the parameter field "SQL Type" in the rule content when a rule template is created or modified. Optimized the display logic for instance ID search. Fixed the issue where the alarm cannot be triggered after the audit configuration of an UPDATE high-risk event alarm. | 2025-06-09 |
Update | Description | Release Date | Documentation |
Support for setting backup download rules | TDSQL-C for MySQL now supports limiting download conditions for backup files. You can set backup download rules based on your actual needs to enhance security and management efficiency. | 2025-05-30 | |
Support for GDN | TDSQL-C for MySQL released the Global Database Network (GDN) feature to help enterprises build a GDN architecture with high availability, low latency, and strong consistency. | 2025-05-29 | |
TXSQL kernel feature update | TDSQL-C for MySQL 8.0 kernel version was updated to 3.1.16.001 to improve database performance and stability. | 2025-05-23 | |
Database proxy version update | TDSQL-C for MySQL released database proxy version 1.3.17. | 2025-05-13 | |
LibraDB kernel version update | New kernel versions 1.2404.24.0 and 2.2410.6.0 were released for the read-only analysis engine of TDSQL-C for MySQL. | 2025-05-06 |
Update | Description | Release Date | Documentation |
Support for configuration adjustment on the read-only analysis engine | TDSQL-C for MySQL read-only analysis engine instance now supports instance configuration changes. | 2025-04-27 | |
Support for multi-node high availability on the read-only analysis engine | TDSQL-C for MySQL read-only analysis engine instance now supports multi-node high availability capabilities. | 2025-04-27 | |
Support for alarm configuration on the read-only analysis engine | TDSQL-C for MySQL read-only analysis engine instance now supports alarm configuration capabilities. | 2025-04-27 | |
LibraDB kernel version update | New kernel versions 1.2404.23.0 and 2.2410.5.0 were released for the read-only analysis engine of TDSQL-C for MySQL. | 2025-04-22 | |
Database Audit optimization | TDSQL-C for MySQL optimized Database Audit as follows. Added generation progress display in the audit log file list. Added the options of "All fields" and "Interaction with custom list fields (including field order and content)" when an audit log file was created. Added PREPARE as an SQL type. Optimized source IP display for SaaS operations (DTS, DBbrain, and DMC). Optimized the display of error codes, transaction IDs, and table names. Added version support descriptions for audit log fields. Optimized the timeout logic for the fuzzy query and wildcard query scenarios. | 2025-04-09 | |
Support for AZ migration | TDSQL-C for MySQL released the AZ migration feature. When the business area of a cluster needs to be migrated, the migration can be quickly achieved through AZ migration. | 2025-04-03 | |
Support for shipping database audit logs to TDMQ for CKafka | TDSQL-C for MySQL database audit supports log shipping to the TDMQ for CKafka. The database audit logs of instances can be collected and shipped to the TDMQ for CKafka console for real-time stream computing. | 2025-04-01 | |
Support for shipping database audit logs to CLS | TDSQL-C for MySQL database audit supports log shipping to CLS. The database audit logs of instances can be collected and shipped to the CLS for aggregation management and analysis. | 2025-04-01 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | New issue-fixed versions 1.2404.22.1 and 2.2410.4.1 are released for the read-only analysis engine of TDSQL-C for MySQL. | 2025-03-25 | |
TXSQL kernel feature update | TDSQL-C for MySQL 8.0 kernel version is updated to 3.1.15.006 to improve database performance and stability. | 2025-03-21 | |
LibraDB kernel version update | New issue-fixed versions 1.2404.22.0 and 2.2410.4.0 are released for the read-only analysis engine of TDSQL-C for MySQL. | 2025-03-15 | |
Database proxy version update | TDSQL-C for MySQL releases database proxy version 1.4.4. | 2025-03-14 | |
Database proxy version update | TDSQL-C for MySQL releases database proxy version 1.3.16. | 2025-03-06 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | TDSQL-C for MySQL 5.7 kernel version has been updated to 2.1.13.002 to improve database performance and stability: The secondary cache feature is supported. | 2025-02-26 | |
TXSQL kernel feature update | TDSQL-C for MySQL 8.0 kernel version has been updated to 3.1.15.005 to improve database performance and stability: Two binlog subscription modes are supported on read-only instances: Based on file_name and pos; Based on timestamp. | 2025-02-26 | |
New regions supported by general nodes | The regions Hong Kong (China) and Virginia are supported for general compute nodes of TDSQL-C for MySQL. | 2025-02-20 | |
LibraDB kernel version update | A new bug-fixed version 1.2404.21.0 is released for the "read-only analysis engine" of TDSQL-C for MySQL. All new user instances will be shipped with this version by default. | 2025-02-12 | |
LibraDB kernel version update | A new bug-fixed version 2.2410.1.0 is released for the "read-only analysis engine" of TDSQL-C for MySQL, which supports many new kernel features. This version is currently under Beta test. To apply for a trial, submit a ticket. | 2025-02-05 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | A new bug-fixed version 1.2404.20.0 is released for the "read-only analysis engine" of TDSQL-C for MySQL. All new user instances will be shipped with this version by default. | 2025-01-17 | |
Support for the read-only analysis engine by the database proxy | The "read-only analysis engine" is supported for the database proxy. The supported database proxy version is 1.3.15. | 2025-01-09 | |
Support for monitoring the read-only analysis engine | Viewing the monitoring information on the "read-only analysis engine" in the console is supported. | 2025-01-09 | |
Support for modifying read-only analysis engine parameters | Adjusting parameters of the "read-only analysis engine" in the console is supported. | 2025-01-09 | |
Support for searching and filtering of loaded objects | Objects can be filtered by database name and loading status in the console. Objects loaded to the "read-only analysis engine" can be searched. The two capabilities improve the user experience in scenarios with many databases and tables. | 2025-01-09 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | TDSQL-C for MySQL "read-only analysis engine" released a new bug-fixed version 1.2404.19.1. All new user instances will be shipped with this version by default. | 2024-12-28 | |
Database proxy version update | TDSQL-C for MySQL released database proxy version 1.3.15. | 2024-12-19 | |
LibraDB kernel version update | TDSQL-C for MySQL "read-only analysis engine" released version 1.2404.19.0. This version fixed multiple kernel issues and adapted to peripheral ecosystem components. Supports adaptation to "database proxy", and the "read-only analysis engine" can be accessed via database proxy. Supports adaptation to "DMC". The read-only analysis engine can be accessed via the new version of DMC (Database Management), which allows for query and use of data in the read-only analysis engine. For other fixes and system optimizations, refer to the relevant documentation. | 2024-12-19 | |
Provisioned resource clusters support attaching Serverless read-only instances. | TDSQL-C for MySQL clusters in provisioned resource instance mode support attaching Serverless read-only instances, enabling hybrid deployment under a single cluster (where both provisioned resource read-only instances and Serverless read-only instances coexist). They also support transforming provisioned resource read-only instances within the cluster into Serverless read-only instances. | 2024-12-10 | - |
LibraDB kernel version update | TDSQL-C for MySQL "read-only analysis engine" released version 1.2404.17.0. This version supports new functions and includes system optimizations, such as: Added support for the FROM_UNIXTIME and UNIX_TIMESTAMP functions. Optimized the permissions required to query system tables when database client tools, such as DBearer, access the read-only analysis engine. | 2024-12-03 |
Update | Description | Release Date | Documentation |
Supports Serverless cost estimator | TDSQL-C for MySQL supports the Serverless cost estimator, helping you better understand the cost of using Serverless services. | 2024-11-28 | |
Supports TDE | TDSQL-C for MySQL supports the Transparent Data Encryption (TDE) feature. Transparent encryption refers to cryptographic operations being transparent to users, enabling real-time I/O encryption and decryption of data files. Data is encrypted before being written to disk and decrypted when it is read from disk into memory, meeting compliance requirements for static data encryption. | 2024-11-26 | |
Supports Serverless fixed specifications | The upper and lower limits of computing power configuration for Serverless clusters can be set to the same computing power. | 2024-11-25 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.15.004 to improve database performance and stability: Added the query cache feature. | 2024-11-25 | |
LibraDB kernel version update | TDSQL-C for MySQL has released issue-fixed version 1.2404.15.2 for its "read-only analysis engine". | 2024-11-13 | |
Four-digit minor version number released | TDSQL-C for MySQL now supports four-digit minor version numbers for its database kernel, preventing passive upgrades and ensuring stable instance operation during version updates. | 2024-11-08 | |
Database proxy version update | TDSQL-C for MySQL has released database proxy version 1.3.14. | 2024-11-08 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | TDSQL-C for MySQL has updated the kernel version of its "read-only analysis engine" to 1.2404.15.1, primarily including system optimizations and bug fixes. Optimized the default parameter value for database log retention size. The lazy materialization feature is enabled by default for the read-only analysis engine. lazy materialization Added support for loading tables whose names begin with an underscore (_) into the read-only analysis engine. Improved the restart efficiency of the read-only analysis engine. | 2024-10-30 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.15.003 to improve database performance and stability: Reduced the wake-up time of Serverless instances. | 2024-10-29 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.15.002 to improve database performance and stability: Supports TDE. The secondary cache feature is supported. | 2024-10-26 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 5.7 was updated to 2.1.13.001 to improve database performance and stability: Support the recycle bin feature. The flashback query feature is supported. Supports the returning feature. Supports the Nonblocking DDL feature. Supports the parallel Copy DDL feature. | 2024-10-12 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.15.001 to improve database performance and stability. | 2024-10-10 |
Update | Description | Release Date | Documentation |
LibraDB kernel version update | The kernel version of TDSQL-C for MySQL "read-only analysis engine" was updated to 1.2404.10.0, which primarily optimizes the user experience and stability of the product. Supports the date_sub function. Supports manual execution of table statistics collection by users. See Collecting Statistics. Added support for synchronous loading of enum data in special scenarios. Optimized system default parameters, backend behavior, and other user experience features. | 2024-9-28 |
Update | Description | Release Date | Documentation |
Support for SSL encryption | TDSQL-C for MySQL supports SSL encryption, establishing a secure encrypted transmission channel between clients and the cloud database server. This ensures encrypted data transmission, preventing interception, tampering, and other security threats during transit, thereby guaranteeing the security of transmitted information. | 2024-08-01 | |
The read-only analysis engine instance has entered beta testing. | TDSQL-C for MySQL supports adding read-only analysis engine instances, which have entered beta testing. It delivers orders of magnitude performance improvements for complex SQL queries, big data computations, multi-table JOINs, and other scenarios. It is widely applicable to typical scenarios such as slow queries, batch data processing, and reconciliation queries in business operations. | 2024-08-01 |
Update | Description | Release Date | Documentation |
This feature supports rapid rollback at the database/table level. | TDSQL-C for MySQL supports rolling back databases/tables to a new cluster, significantly improving the rollback speed for large-data-volume instances. | 2024-06-28 | |
Database proxy version update | TDSQL-C for MySQL has released database proxy version 1.3.12. | 2024-06-14 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.14 to improve database performance and stability: Supports the columnar storage indexes feature (region-based limited release). Enhanced parallel query capabilities include: parallel subqueries, parallel rollup, parallel NLJ inner tables, and parallel in-mem hash join. | 2024-05-20 | |
Database Audit optimization | TDSQL-C for MySQL optimized its Database Audit with the following updates. Optimized the query time box on the Audit Log page and added quick query time options. Added the "Transaction ID" field to audit logs. The audit console interface was optimized. | 2024-05-16 | |
Serverless clusters support binding multiple resource packs. | TDSQL-C for MySQL clusters in Serverless instance mode support binding multiple resource packs. This allows automatic resource consumption from the second bound resource pack when the first one is depleted, and also supports adjusting the consumption priority order. | 2024-05-10 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.13 to improve database performance and stability: The issue of slow data access caused by inefficient looping in full table scans has been optimized. The issue of degraded scan performance for large queries in concurrent scenarios has been optimized. | 2024-04-12 | |
Multi-AZ deployment supports selecting the binlog replication mode. | TDSQL-C for MySQL supports selecting the binlog replication mode for primary/secondary nodes when multi-AZ deployment is configured. The default is asynchronous replication, which can be customized to asynchronous, semi-synchronous, or fully synchronous replication. | 2024-04-11 | |
Optimized upgrade of kernel minor versions | TDSQL-C for MySQL has optimized the kernel minor version upgrade process, allowing users to set a version upgrade timeframe. During this period, operations that trigger cluster migration will not automatically upgrade your cluster to the latest kernel minor version. Manual upgrades are also supported if early upgrade is required within the timeframe. | 2024-04-10 | |
Optimizing and adjusting configurations | TDSQL-C for MySQL has optimized the configuration adjustment page. If a cluster with provisioned resources has database proxy enabled, you can choose whether to adjust the database proxy configurations on this page. This allows you to evaluate whether the database proxy node configurations meet your business load requirements when modifying the cluster's compute settings. | 2024-04-09 |
Update | Description | Release Date | Documentation |
Serverless clusters support Multi-AZ deployment. | TDSQL-C for MySQL clusters in Serverless instance mode support Multi-AZ deployment, which offers higher disaster recovery capabilities and enhanced database protection compared to single-AZ deployment mode. | 2024-03-21 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 8.0 was updated to 3.1.12 to improve database performance and stability: Support viewing storage layer network I/O traffic, time taken and frequency, as well as transaction commit latency in slow logs. Database audit supports adding transaction ID fields and table names. Supports the black hole engine. Supports the default algorithms (inplace/instant) for DDL execution. Optimize committing binlog for large transactions. Optimizes binlog writes. Optimize purge binlog performance. Optimizes the parallel DDL feature. | 2024-01-26 | |
TXSQL kernel feature update | TDSQL-C for MySQL 5.7 kernel version was updated to 2.1.12 to improve database performance and stability: Read-only instances support binlog subscription via position. Optimize purge binlog performance. | 2024-01-26 | |
TXSQL kernel feature update | The kernel version of TDSQL-C for MySQL 5.7 was updated to 2.1.11 to improve database performance and stability: Supports multi-threaded logical backup. Database proxy supports transaction split. | 2024-01-26 | |
TXSQL supports compilation-optimized high-performance version. | TDSQL-C for MySQL kernel versions 5.7 2.1.11 and 8.0 3.1.12 support the compilation-optimized high-performance version. Without modifying the database kernel business logic code, this version leverages compiler optimization techniques to improve kernel performance by 100% while reducing functional loss. This version is currently under grayscale release. To experience it in advance, please submit a ticket for upgrade. | 2024-01-02 |
Update | Description | Release Date | Documentation |
Distributed shared storage architecture upgrade | TDSQL-C for MySQL's distributed shared storage architecture was optimized and upgraded as follows. Optimized key paths such as log transmission, persistence, data page replay, and redundant pages cleaned up, improved the efficiency of redo replay/merge, reduced additional performance degradation and resource contention, significantly enhanced storage layer stability, decreased access latency by over 30%, and reduced network jitter spikes by over 100%. The backup and rollback module was optimized, resolving the issue of unstable rates in abnormal scenarios of Snapshot Backup and logical backup, and further improved the efficiency of parallel rollback. | 2023-12-29 | - |
Update | Description | Release Date | Documentation |
Supports CLS. | TDSQL-C for MySQL supports collecting slow log data of instances and shipping to CLS (Cloud Log Service, CLS) for analysis, providing comprehensive log services from log collection, log storage to log search, to quickly monitor and locate business issues. | 2023-11-20 |
Update | Description | Release Date | Documentation |
Supports columnar storage indexes CSI. | TDSQL-C for MySQL supports the CSI (Columnar Storage Index) feature, which utilizes columnar data format for storing, searching, and managing data, delivering enhanced query performance and higher data compression rates. | 2023-10-30 |
Update | Description | Release Date | Documentation |
Database Audit optimization | TDSQL-C for MySQL optimized Database Audit as follows. Supported binding multiple rule templates to instances. Changed the relationship between rule templates and instances from initialization to strong binding. That is, the modification of the content in a rule template would cause a change to the audit rules used for instances bound to the template. Supported viewing the rule templates bound to each instance, the audit rules hit by each audit log, and the instances associated with each rule template. Integrated with EventBridge and Tencent Cloud Observability Platform (TCOP), supporting high, medium, and low-risk event alarms. Rule auditing, setting risk levels and alarm policies, and post-event alarms require submitting a ticket for application. | 2023-09-25 | |
Support for cross-region backup | TDSQL-C for MySQL supports the cross-region backup feature, achieving high availability for database recovery and meeting requirements such as data availability and security, remote backup and recovery, remote disaster recovery, long-term data archiving, and compliance. | 2023-09-21 |
Update | Description | Release Date | Documentation |
TXSQL kernel feature update | TXSQL kernel feature update, enhancing database performance and stability: TDSQL-C for MySQL 5.7 kernel version updated to 2.1.10, with read-only instances supporting binlog subscription, blackhole engine, and buffer pool resizing. | 2023-08-25 | |
TXSQL kernel feature update | TXSQL kernel feature update, enhancing database performance and stability: TDSQL-C for MySQL 8.0 kernel version updated to 3.1.10, and 5.7 kernel version updated to 2.1.9, both support automatic kill of idle transactions, dynamic thread pool, NOWAIT syntax, invisible index. Version 3.1.10 additionally supports new features: Flashback Query, Optimization of Point Queries in Plan Cache, statement outline, while read-only instances support binlog subscription, blackhole engine, and updates to the parallel query feature. Version 2.1.9 additionally supports new features: returning, auto-increment column persistence, compute pushdown, bufferpool initialization, hot update protection. | 2023-08-22 | |
Serverless clusters support mounting read-only instances. | Serverless clusters support mounting read-only instances, allow separate configuration of compute ranges for read-only instances, and enable automatic start/stop of read-only instances, enhancing read performance and levels of concurrency while reducing the load pressure on the primary instance. | 2023-08-18 | |
Database Audit optimization | TDSQL-C for MySQL optimizes the database audit logs page, supporting multi-mode search for SQL command details, with matching options including "contains, does not contain", "or, and", "word segmentation, wildcard". | 2023-08-09 |
Update | Description | Release Date | Documentation |
Database Audit optimization | TDSQL-C for MySQL optimizes the database audit logs page, adding support for multiple search modes such as fuzzy/exact/forward/reverse/simple/complex. The units for the audit log fields "Execution Time" and "CPU Time" have been standardized to microseconds in both the console and downloaded audit log files. | 2023-07-12 |
Update | Description | Release Date | Documentation |
Serverless resource packs go live | TDSQL-C for MySQL introduces the prepaid resource type Serverless resource pack, allowing you to reserve resources in advance. Compared to the pay-as-you-go billing mode, resource packs can help you save more costs, and the larger the purchased capacity, the more cost-effective it becomes. | 2023-05-31 | |
The new version of the database proxy goes live. | TDSQL-C for MySQL releases a new version of the database proxy, providing robust features such as automatic read/write splitting, transaction split, and connection pooling. It also supports enabling multiple database proxy endpoints (custom routing) to meet diverse business scenario requirements. | 2023-05-10 |
Update | Description | Release Date | Documentation |
Supports instance-level dedicated IP addresses | TDSQL-C for MySQL supports configuring dedicated network IP addresses for read-write instances or any read-only instance under a cluster, enabling connection and access to specified instances via the corresponding address. Meanwhile, newly purchased clusters and existing clusters with only read-write instances no longer support the read-only group connection address feature. | 2023-03-13 |
Update | Description | Release Date | Documentation |
The console supports tab views. | The TDSQL-C for MySQL console supports both tab view and list view. You can freely switch between views in the cluster list to enable clearer querying and browsing of cluster information. | 2023-01-05 |
Update | Description | Release Date | Documentation |
Supports global and non-global parameter settings | TDSQL-C for MySQL has introduced a distinction between global and non-global parameters. Parameter values set for global parameters take effect on all instances within the cluster. For non-global parameters, the set values only take effect on the current instance but can be synchronized to other instances. | 2022-12-16 | |
Supports formula-based parameter setting and optimizes parameter templates | TDSQL-C for MySQL offers more comprehensive parameter settings, supporting default or custom formula-based parameter value configurations to better suit your database. Parameters can be saved as templates and imported/exported, facilitating batch management of database clusters. | 2022-12-16 | |
TDSQL-C for MySQL releases a new version of the audit service. | TDSQL-C for MySQL releases a new version of the audit service, supporting full auditing and rule-based auditing. It features complete and reliable data collection, tamper resistance, ensuring data transmission integrity, and maintaining data storage integrity. | 2022-12-15 |
Update | Description | Release Date | Documentation |
TDSQL-C for MySQL supports parallel query capability. | TDSQL-C for MySQL supports parallel query capability, leveraging multi-core compute resources to significantly reduce response times for large queries. | 2022-10-24 |
Update | Description | Release Date | Documentation |
TDSQL-C for MySQL audit supports low-frequency storage. | Tencent Cloud provides low-frequency storage for TDSQL-C for MySQL database audit. Users can choose appropriate billing based on the actual storage frequency of their database audit, helping to reduce audit costs. | 2022-09-30 |
Update | Description | Release Date | Documentation |
Supports customizable password strength. | TDSQL-C for MySQL supports customizable password strength, ensuring database security and compliance with enterprise security standards. | 2022-08-22 | |
Monitoring and Alarm Feature Optimization | TDSQL-C for MySQL has added new monitoring metrics, optimized Chinese and English names of monitoring items, units, collection methods, calculation methods, and data aggregation methods. It has also improved the monitoring portal, enhanced monitoring pages, integrated EventBridge alarms, increased system stability, improved Ops efficiency, reduced Ops costs, and helps you gain full visibility into database resource usage and operational status. | 2022-08-05 |
Update | Description | Release Date | Documentation |
Support for the database proxy | TDSQL-C for MySQL supports database proxy, a network proxy service located between cloud database services and application services. It handles all requests when application services access the database, accesses primary/secondary nodes through proxy clusters, handles read-write separation, and reduces the load on primary databases. | 2022-07-11 |
Update | Description | Release Date | Documentation |
Supports querying and downloading slow logs. | TDSQL-C for MySQL supports querying and downloading slow log details, supports downloading files in two formats: csv and native format (recognizable by open-source analysis tools), and can improve efficiency and optimize performance by identifying and optimizing inefficient SQL statements. | 2022-05-31 | |
Backup management feature optimization | TDSQL-C for MySQL optimized the backup management feature, supporting logical backup and snapshot backup, downloading and deleting manual backups, setting and modifying backup retention periods, thereby enhancing the completeness of data backup and rollback functionality. | 2022-05-30 |
Update | Description | Release Date | Documentation |
TDSQL-C for MySQL releases performance test report | TDSQL-C for MySQL releases a performance test report, comparing its performance with Tencent Cloud MySQL in write-only, read-only, and mixed read/write scenarios. The test results demonstrate the superior performance of TDSQL-C for MySQL. | 2022-03-28 |
Update | Description | Release Date | Documentation |
TDSQL-C for MySQL 5.7 kernel minor version update | 2.0.15: Supports expanding table spaces, and adds the JSON functions JSON_MERGE_PRESERVE, JSON_MERGE_PATCH, JSON_PRETTY, JSON_STORAGE_SIZE, JSON_ARRAYAGG, and JSON_OBJECTAGG. 2.0.16: Optimized undo space truncate to improve its speed on large-scale instances, and optimized the performance of large-scale range queries on read-only instances. | 2022-02 |
Update | Description | Release Date | Documentation |
TDSQL-C MySQL 8.0 supports read-only instance scaling | TDSQL-C MySQL 8.0 kernel version upgrade to 3.1.2 supports read-only instance scaling, significantly enhancing the scaling capabilities for read performance in database clusters. | 2022-01 |
Update | Description | Release Date | Documentation |
Support for Multi-AZ deployment | TDSQL-C for MySQL engine supports the creation of multi-AZ clusters. Compared to single AZ clusters, multi-AZ clusters offer higher disaster recovery capabilities to protect databases against instance failures or AZ outages, and can withstand data center-level failures. | 2021-11 |
Update | Description | Release Date | Documentation |
Support for data subscription | Data Transmission Service (DTS) supports the migration of various relational databases such as TDSQL-C for MySQL and NoSQL databases. It can meet the needs of scenarios such as business data mining and asynchronous business decoupling through data subscription. | 2021-10 | |
Support for Automatic Reclamation of Fragmented Space | TDSQL-C for MySQL supports automatic reclamation of fragmented space. After data deletion, fragmented space is automatically reclaimed to reduce storage costs. | 2021-10 | - |
Update | Description | Release Date | Documentation |
Support for TencentDB for MySQL 8.0 | The TDSQL-C for MySQL engine kernel supports MySQL 8.0. Integrated with comprehensive management services and self-developed kernel features, it delivers faster and more stable cloud-native database services, enriches industry scenarios, and assists customers in industrial upgrading. (Adding read-only instances is currently not supported in this version). | 2021-09 | - |
Supports Instant DDL | TDSQL-C for MySQL supports the Instant DDL feature. Using the instant algorithm, it avoids data copying to enable rapid column modification for large tables—without copying data, occupying disk space, or consuming disk I/O. Changes can be completed within seconds even during peak business hours. | 2021-09 |
Update | Description | Release Date | Documentation |
TDSQL-C for MySQL audit bills support displaying project group information. | Project group information corresponding to database instances was displayed in the exported bills. This facilitated classified statistics on bills by project group. | 2021-08 | |
TDSQL-C for MySQL audit supports displaying instance names. | The Instance ID column in the instance list was changed to the Instance ID/Name column, with instance names displayed to facilitate quick instance location. | 2021-08 | - |
TDSQL-C for MySQL audit logs support a retention period of 7 days. | When the new audit feature is enabled, the log retention period can be set to 7 days. This meets scenarios where users need to observe operational overviews and analyze issues over a short term when troubleshooting database problems. Meanwhile, instances with existing audit capabilities also support modifying the log retention period to 7 days. | 2021-08 | |
TDSQL-C for MySQL Audit Search Optimization | Fuzzy search was supported. Multiple SQL types were allowed to be set as filter conditions at the same time. The 24-hour limit was removed from search time ranges. | 2021-08 |
Update | Description | Release Date | Documentation |
Storage billing supports yearly/monthly subscription. | The storage billing mode supports the yearly/monthly subscription (prepaid) mode. Under the provisioned resources mode, when compute nodes select the yearly/monthly subscription, the storage billing mode also supports choosing the yearly/monthly subscription. | 2021-06 | |
Serverless computing power specifications have been enhanced. | The Serverless billing mode supports an elastic upper limit of up to 16core for computing power configuration. | 2021-06 |
Update | Description | Release Date | Documentation |
TDSQL-C for MySQL supports database audit. | TDSQL-C for MySQL supports database audit, which records fine-grained auditing of database operations and compliance management. It captures all SQL operations performed on the database, provides detailed traceability of database activities, and thus facilitates accountability tracing for database security incidents. | 2021-05 |
Update | Description | Release Date | Documentation |
supports database and table level rollback | TDSQL-C supports database/table level rollback to the source cluster and full cluster level rollback (clone) to a new cluster, allowing users to choose different rollback methods based on business needs. | 2021-03 |
Update | Description | Release Date | Documentation |
supports conversion from pay-as-you-go to Serverless | TDSQL-C supports converting pay-as-you-go clusters to Serverless. This is achieved by converting cluster types in the background. After conversion, billing items and details will change, but the billing mode remains postpaid. | 2020-12 | |
supports conversion from pay-as-you-go to yearly/monthly subscription | TDSQL-C supports conversion from pay-as-you-go to yearly/monthly subscription. TDSQL-C achieves this by generating renewal orders. Please pay the renewal order promptly to ensure a successful conversion. | 2020-12 | |
Cloud Database CynosDB has been renamed to | Since December 24, 2020, Tencent Cloud's "Cloud Database CynosDB" has been renamed to "Cloud Native Database TDSQL-C". | 2020-12 | |
Serverless service has been launched. | Serverless is the serverless architecture version of Tencent's self-developed cloud native database CynosDB, representing a fully serverless cloud native database. The Serverless service charges based on actual computing and storage resource usage, with no fees incurred when idle. This makes Tencent Cloud's cloud native technology accessible to all users. | 2020-12 |
Update | Description | Release Date | Documentation |
The read-only instance feature has been added. | Cloud Database CynosDB allows users to create one or more read-only instances for a cluster to support read/write separation and one-write-multiple-read application scenarios. Adding read-only instances can significantly enhance the read load capacity of the database cluster. | 2020-07 | |
Supports data migration via DTS. | Cloud Database CynosDB supports migrating MySQL 5.7 databases to Cloud Database CynosDB (CynosDB for MySQL) via DTS. | 2020-07 |
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