Upgrading from MariaDB 10.5 to MariaDB 10.6

How to Upgrade

For Windows, see Upgrading MariaDB on Windows.

Before you upgrade, it would be best to take a backup of your database. This is always a good idea to do before an upgrade. We would recommend Mariabackup.

The suggested upgrade procedure is:

  1. Modify the repository configuration, so the system's package manager installs MariaDB 10.6. For example,
  2. Stop MariaDB.
  3. Uninstall the old version of MariaDB.
    • On Debian, Ubuntu, and other similar Linux distributions, execute the following:
      sudo apt-get remove mariadb-server
    • On RHEL, CentOS, Fedora, and other similar Linux distributions, execute the following:
      sudo yum remove MariaDB-server
    • On SLES, OpenSUSE, and other similar Linux distributions, execute the following:
      sudo zypper remove MariaDB-server
  4. Install the new version of MariaDB.
  5. Make any desired changes to configuration options in option files, such as my.cnf. This includes removing any options that are no longer supported.
  6. Start MariaDB.
  7. Run mariadb-upgrade.
    • mariadb-upgrade does two things:
      1. Ensures that the system tables in the mysql database are fully compatible with the new version.
      2. Does a very quick check of all tables and marks them as compatible with the new version of MariaDB .

Incompatible Changes Between 10.5 and 10.6

On most servers upgrading from 10.5 should be painless. However, there are some things that have changed which could affect an upgrade:

Reserved Word

InnoDB COMPRESSED Row Format

From MariaDB 10.6.0, tables that are of the COMPRESSED row format are read-only by default. This is the first step towards removing write support and deprecating the feature.

Set the innodb_read_only_compressed variable to OFF to make the tables writable.

Options That Have Changed Default Values

Option Old default value New default value
innodb_flush_method fsync O_DIRECT

Options That Have Been Removed or Renamed

The following options should be removed or renamed if you use them in your option files:

Option Reason
innodb_adaptive_max_sleep_delay
innodb_background_scrub_data_check_interval
innodb_background_scrub_data_compressed
innodb_background_scrub_data_interval
innodb_background_scrub_data_uncompressed
innodb_buffer_pool_instances
innodb_checksum_algorithm The variable is still present, but the *innodb and *none options have been removed as the crc32 algorithm only is supported from MariaDB 10.6.
innodb_commit_concurrency
innodb_concurrency_tickets
innodb_file_format
innodb_large_prefix
innodb_lock_schedule_algorithm
innodb_log_checksums
innodb_log_compressed_pages
innodb_log_files_in_group
innodb_log_optimize_ddl
innodb_page_cleaners
innodb_replication_delay
innodb_scrub_log
innodb_scrub_log_speed
innodb_sync_array_size
innodb_thread_concurrency
innodb_thread_sleep_delay
innodb_undo_logs

Deprecated Options

The following options have been deprecated. They have not yet been removed, but will be in a future version, and should ideally no longer be used.

Option Reason
wsrep_replicate_myisam Use wsrep_mode instead.
wsrep_strict_ddl Use wsrep_mode instead.

Major New Features To Consider

See Also

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https://mariadb.com/kb/en/upgrading-from-mariadb-105-to-mariadb-106/