Available in Classic and VPC
Keep track of changes to the Cloud DB for MySQL user guide. The release notes include:
- New
- Update
- Added: New features
- Changed: Feature enhancements
- Fixed: Bug fixes
- Deprecated: Feature deprecations or service shutdown
- Miscellaneous: Documentation changes
Read on for detailed descriptions of each release.
VPC
The following table describes updates to the VPC environment:
April 23, 2026
| Type |
Change |
Go to page |
| Update - Added |
- Launched config template feature
- New version of MySQL 8.0.45 added
- DB Server setting feature added
- jemalloc added to malloc-lib settings
- Semi-sync added (MySQL 8.4 or higher)
- User DB Config added
- innodb_max_undo_log_size
- sql_safe_updates
- rpl_semi_sync_source_timeout
|
|
| Update - Changed |
- Changed minimum digits for DB User ID
- Improved config template event_history view
|
|
January 22, 2026
| Type |
Change |
Go to page |
| Update - Added |
- MySQL 8.4 major version released (MySQL 8.4.6)
- MySQL 8.0 -> 8.4 major version upgraded feature released
- [DB Dashboard] New charts added
- Connection Percent(%)
- Failover Status
|
|
| Update - Changed |
- Improved query speed for Slow Log analysis.
- [Database Migration Service] Restricted point-in-time recovery for Cloud DB for MySQL to times prior to completion or abnormal termination when deleting Database Migration Service tasks.
|
|
November 20, 2025
| Type |
Change |
Go to page |
| Update - Added |
- User DB Config added
- binlog_transaction_dependency_tracking
- performance_schema_digests_size
- Addition of optimizer_switch option items: skip_scan = off
|
DB Server |
| Update - Changed |
- User DB config default value changed
- slave_parallel_type Default setting changed (DATABASE -> LOGICAL_CLOCK)
- max_prepared_stmt_count Default setting changed (1048576 -> 16382)
- Changed/added service limits for user DB config
- Changed the replica_preserve_commit_order configuration policy
- Can only be set to
replica_preserve_commit_order = ON
|
|
when replica_parallel_type = LOGICAL_CLOCKWhen autocommit = OFF, slave_parallel_workers(replica_parallel_workers) can be configured to 0 onlyAdded support for using DB names in reserved word format within sys.ncp_create_db() procedures |
DB Server |
|
September 18, 2025
| Type |
Change |
Go to page |
| Update - Added |
- Added rolling specification change feature (G3)
- Enabled automatic registration of time zone data when creating a new cluster
|
DB Server |
| Update - Miscellaneous |
Added an integration guide for external monitoring tools |
External monitoring tool integration |
July 17, 2025
| Type |
Change |
Go to page |
| Update - Added |
- G3 generation released (KR, JP)
|
DB Server |
| Update - Changed |
- Some target DB features are restricted on the day you use Database Migration service
- Add Slave
- OS upgrade
- Point-in-time recovery
- Change Multi Zone configuration
|
DB Server |
June 19, 2025
| Type |
Change |
Go to page |
| Update - Added |
- Added support for entering DB user IPs in CIDR format
- New version of MySQL 8.0.42 added
- When replication errors or delays occur, the Standby Master status changes to Unknown, and failover is not available
|
DB Server |
May 8, 2025
| Type |
Change |
Go to page |
| Update - Added |
- User DB Config added
- innodb_adaptive_flushing_lwm
- innodb_flush_log_at_timeout
- innodb_flush_method
- innodb_io_capacity_max
- innodb_lru_scan_depth
- innodb_max_dirty_pages_pct_lwm
- sync_binlog
- table_definition_cache
- innodb_doublewrite_pages
- temptable_max_mmap
- temptable_max_ram
|
DB Server |
| Update - Changed |
- Changed the input range for user DB config.
|
DB Server |
April 17, 2025
| Type |
Change |
Go to page |
| Update - Added |
- Added support for creating a new DB server using backups stored in Object Storage
- Added support for creating a new service through point-in-time recovery and changing specifications during creation
- User DB Config added
- Added sql_require_primary_key
- Changed the default value of sql_require_primary_key from OFF to ON for versions 8.0.40 and later
|
|
March 20, 2025
| Type |
Change |
Go to page |
| Update - Added |
- Provided operating system management features
- Provided an option to select server specifications when creating a new service from a backup file
- User DB Config added
- explicit_defaults_for_timestamp
- thread_stack
- table_open_cache_instances
- innodb_max_dirty_pages_pct
- innodb_doublewrite
- innodb_page_cleaners
- innodb_purge_threads
|
|
| Update - Changed |
- Query Timeline page processing
- disabled_storage_engine ="MEMORY"
|
Monitoring |
January 16, 2025
| Type |
Change |
Go to page |
| Update - Added |
- New version of MySQL 8.0.40 added
|
- |
| Update - Changed |
- Reduced the default value of innodb_buffer_pool_size for new servers
- Applied tcmalloc as the default allocator when creating new clusters
|
- |
November 21, 2024
| Type |
Change |
Go to page |
| Update - Deprecated |
- Blocked new service creation for MySQL 5.7
|
- |
October 17, 2024
| Type |
Change |
Go to page |
| Update - Added |
- Replaced Base OS (Rocky 8.10)
- Improved DB Config management
- Improved backup retention period settings
- Integrated DB user change history with CAT
|
DB Server |
| Update - Deprecated |
- Disabled data storage encryption feature.
|
- |
July 23, 2024
June 20, 2024
| Type |
Change |
Go to page |
| Update - Added |
- Enabled expanding the Standby Master details interface
- Permission can be selected for system tables when managing DB users
- New version of MySQL 8.0.36 added
- Added a Slow Log analysis feature
- Added a feature to view query execution history for a specific session
- Added a return protection setting
- User DB Config added
- innodb_open_files
- innodb_thread_concurrency
- innodb_io_capacity
- optimizer_switch
- Added values for collation_connection
- utf8mb4_unicode_ci
- euckr_korean_ci
- utf8_general_ci
- Added User Stored Procedures
- ncp_grant_role()
- ncp_revoke_role()
|
DB Server |
| Update - Changed |
- Monitoring graph added
- InnoDB Buffer Pool graph added
|
Monitoring |
| Update - Miscellaneous |
Reorganized user guides composition and content |
Cloud DB for MySQL overview |
April 25, 2024
| Type |
Change |
Go to page |
| Update - Added |
- User DB Config added
- log_error_suppression_list
|
DB Server |
March 21, 2024
| Type |
Change |
Go to page |
| Update - Added |
User DB Config added- password_reuse_interval
- password_history
|
DB Server |
January 25, 2024
| Type |
Change |
Go to page |
| Update - Added |
- New version of MySQL 8.0.34 added
- User DB Config added
- default_collation_for_utf8mb4
- collation_connection
- innodb_stats_auto_recalc
- innodb_stats_include_delete_marked
|
DB Server |
November 23, 2023
| Type |
Change |
Go to page |
| Update - Added |
- Major version upgrade feature
- DB Server setting feature added
- Malloc-lib change feature added
- User DB Config added
- innodb_buffer_pool_instances
- innodb_buffer_pool_chunk_size
- max_heap_table_size
|
DB Server |
May 25, 2023
| Type |
Change |
Go to page |
| Update - Added |
- New version of MySQL 8.0.32 added
- User DB Config added
- internal_tmp_mem_storage_engine
|
DB Server |
April 20, 2023
| Type |
Change |
Go to page |
| Update - Added |
- Creates a new DB service when restoring from a backup file
- User DB Config added
- innodb_buffer_pool_dump_at_shutdown
- innodb_buffer_pool_load_at_startup
- innodb_buffer_pool_dump_pct
- innodb_log_file_size
- innodb_log_files_in_group
- innodb_log_buffer_size
- innodb_print_all_deadlocks
- innodb_online_alter_log_max_size
|
|
February 23, 2023
| Type |
Change |
Go to page |
| Update - Added |
- New version of MySQL 5.7.40 added
- Provided password plugin
- Added password policy configuration feature for DB accounts
- Provided Audit plugin
- Added features to store and view DB access history
|
DB Server |
| Update - Changed |
- Monitoring graph added
- Replication Status graph added (Replication Stop status monitoring)
|
Monitoring |
November 22, 2022
| Type |
Change |
Go to page |
| Update - Added |
- Sends a user notification when Standby Master reconstruction is complete
- User DB Config added
- performance_schema_max_sql_text_length
- performance_schema_consumer_events_waits_current
- performance_schema_consumer_events_statements_history_long
- User stored procedure call history and event history records added
- ncp_create_db()
- ncp_kill_query()
- ncp_kill_session()
|
DB Server |
July 21, 2022
| Type |
Change |
Go to page |
| Update - Added |
- Kill process feature through stored procedure
|
DB Server |
| Update - Changed |
- Collect monitoring graphs and add items to be exposed
- innodb_buffer_pool_total
- innodb_buffer_pool_used
- innodb_buffer_pool_modified
|
Monitoring |
December 21, 2021
| Type |
Change |
Go to page |
| Update - Added |
- Multi zone specifications added
- DB Config added
- innodb_ft_result_cache_limit
- slave_parallel_type
- slave_parallel_workers
|
DB Server |
| Update - Miscellaneous |
Reorganized user guides composition and content |
Cloud DB for MySQL overview |
Classic
The following table describes updates to the Classic environment:
October 17, 2024
| Type |
Change |
Go to page |
| Deprecated |
Germany Region service deprecated |
- |
July 23, 2024
June 20, 2024
| Type |
Change |
Go to page |
| Update - Miscellaneous |
Reorganized user guides composition and content- Separated menus by VPC and Classic platform environments
|
Cloud DB for MySQL overview |
March 21, 2024
| Type |
Change |
Go to page |
| Update - Added |
- Added FLUSH_TABLES authority to user accounts available from MySQL version 8.0.23.
|
- |
December 15, 2022
| Type |
Change |
Go to page |
| Update - Added |
- Sends a user notification when Standby Master reconstruction is complete
- User DB Config added
- performance_schema_max_sql_text_length
- performance_schema_consumer_events_waits_current
- performance_schema_consumer_events_statements_history_long
- User stored procedure call history and event history records added
- ncp_create_db()
- ncp_kill_query()
- ncp_kill_session()
|
DB ServerEvent |
August 18, 2022
| Type |
Change |
Go to page |
| Update - Added |
- Kill process feature through stored procedure
|
- |
May 26, 2022
| Type |
Change |
Go to page |
| Update - Added |
- Feature for changing DB server name
- New version of MySQL 5.7.37 added
- Reinstall Standby Master and Replication Skip features added
- User DB Config added
- collation_server
- connect_timeout
- (for Stand Alone) expire_logs_days / binlog_expire_logs_seconds
- (for Stand Alone) log-bin
|
DB Server |
| Update - Changed |
- Feature when downloading query timeline Excel file (Download CSV) improved
- DB error message code applied and multilingual support
- Monitoring graph improved
- Interval settings for each search period changed
- Aggregation min and max values indicators added
- Added monitoring graph (DB dashboard - connection aborted added).
|
Monitoring |
February 17, 2022
| Type |
Change |
Go to page |
| Update - Added |
Object Storage upload APIs provided. |
DB Server |
December 21, 2021
| Type |
Change |
Go to page |
| Update - Added |
- DB Config added
- innodb_ft_result_cache_limit
- slave_parallel_type
- slave_parallel_workers
|
DB Server |
| Update - Miscellaneous |
Reorganized user guides composition and content |
Cloud DB for MySQL overview |