Release Notes for MariaDB Enterprise Server 10.4.14-8

This eighth release of MariaDB Enterprise Server 10.4 is a maintenance release, including a variety of fixes.

MariaDB Enterprise Server 10.4.14-8 was released on 2020-09-08.

Fixed Security Vulnerabilities

Notable Changes

• Limit innodb_encryption_threads to 255 ()

• Minimum value of raised to 8 (previously 4) so fixed size data types like and are not truncated for lower values of . ()

• Backport from MariaDB Server 10.5.4 of improvements to for InnoDB. (MENT-636)

privilege for system user mariadb.sys removed for system table ()

Issues Fixed

Can result in data loss

• doublewrite recovery can corrupt data pages. ()

• table can disappear when trying to change primary key after disabling Foreign Key checks and violating a Foreign Key constraint. (MENT-804)

• corruption in delete buffering. ()

• Rollback of fails when column reorder occurs. ()

Can result in a hang or crash

• deadlock in ()

• data file extension is not crash-safe. ()

• is not crash safe. ()

• Deadlock involving parallel workers, , and ()

Can result in unexpected behavior

• Service shutdown fails if OS datetime has been updated backwards. ()

• ALTER TABLE .. ANALYZE PARTITION can run for hours for huge tables if engine-independent persistent statistics are enabled, due to reading and locking of all rows in the table instead of for the partition. ()

• can fail with privilege error when privilege exists at database level but privilege exists at table level. ()

Related to install and upgrade

• and can't run if the library file doesn't exist. ()

Changes in Storage Engines

• This release includes

Interface Changes

• --help command-line option added

• command-line option added

• system variable minimum value changed from 4 to 8

Platforms

In alignment to the , MariaDB Enterprise Server 10.4.14-8 is provided for:

• Red Hat Enterprise Linux 8

• Red Hat Enterprise Linux 7

• Red Hat Enterprise Linux 6

• CentOS 8

Some components of MariaDB Enterprise Server might not support all platforms. For additional information, see

Note

CentOS 6, Debian 8, and Red Hat Enterprise Linux 6 are no longer supported as per the . Older releases are available from the . Instructions for installation are included as a README file within the download.

Installation Instructions

Upgrade Instructions

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