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Updated on 2023-08-21 GMT+08:00
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Kernel Version Description

This section describes the kernel version updates of RDS for MySQL.

RDS for MySQL 8.0

Table 1 RDS for MySQL 8.0 version description

Date

Description

2022-09-09

The updates in RDS for MySQL 8.0.25 are as follows:

  • New features and performance optimized
    • Connection per thread was supported for killing sessions.
    • Constraints on memory were added for the Performance Schema.
    • The performance of SQL Explorer was optimized based on specific scenarios.
    • Database performance was optimized in specific scenarios when the value of internal_tmp_mem_storage_engine was set to MEMORY.
    • The compiler was upgraded to GCC 10.3.
  • Issues resolved
    • Errors caused by writes to a temporary file were resolved.
    • Unexpected responses to Common Table Expression (CTE) queries were resolved.
  • Security hardening
    • The following security vulnerabilities were fixed: CVE-2021-2417, CVE-2021-2339, CVE-2021-2425, CVE-2021-2426, CVE-2021-2427, CVE-2021-2424, CVE-2021-2383, CVE-2021-2384, and CVE-2021-2410.

RDS for MySQL 5.7

Table 2 RDS for MySQL 5.7 version description

Date

Description

2023-06-28
  • New features and performance optimized
    • The kernel version was upgraded to 5.7.41.
    • Compiler security options were added.
  • Issues resolved
    • The replication exception that may occur when an index is added to a reference table and a foreign key is added to another table concurrently was rectified.
    • The replication exception that may occur when a child table is deleted after a foreign key table is deleted was rectified.
  • Security hardening
    • The following security vulnerabilities were fixed: CVE-2023-21963, CVE-2022-32221, CVE-2023-21840, CVE-2022-2097, CVE-2022-21617, CVE-2022-21608, CVE-2022-21592, CVE-2022-21589, CVE-2022-1292, CVE-2022-27778, CVE-2018-25032, and CVE-2022-21515.

2022-09-09
  • New features and performance optimized
    • The kernel version was upgraded to 5.7.38.
    • The compiler was upgraded to GCC 10.3.
    • Connection per thread was supported for killing sessions.
    • The threshold for slow query logs can be set based on the lock wait duration.
    • ALT security was hardened.
  • Issues resolved
    • Recovery security of crashed XA transactions on the primary instance was enhanced.
    • Abnormal instance reboot when Database Proxy is enabled was resolved.
    • Abnormal reboot caused by failed memory request for plugins was resolved.
  • Security hardening
    • The following security vulnerabilities were fixed: CVE-2022-21454, CVE-2022-21417, CVE-2022-21427, CVE-2022-21451, CVE-2022-21444, and CVE-2022-21460.