The Ultimate Guide to High Availability with MariaDB
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MariaDB 10.4.13 Release Notes

The most recent release of MariaDB 10.4 is:
MariaDB 10.4.34 Stable (GA) Download Now

Download Release Notes Changelog Overview of 10.4

Release date: 12 May 2020

MariaDB 10.4 is the current stable series of MariaDB. It is an evolution of MariaDB 10.3 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.

MariaDB 10.4.13 is a Stable (GA) release.

For an overview of MariaDB 10.4 see the What is MariaDB 10.4? page.

Thanks, and enjoy MariaDB!

Notable Changes

Events

  • Fixed issue that, from MariaDB 10.3.19, disabled all events created by a server with a different server_id. Note that the fix does not re-enable affected events. (MDEV-21758)

Privileges

  • SHOW PRIVILEGES now correctly lists the Delete history privilege, rather than displaying it as Delete versioning rows. (MDEV-20382)

Performance

  • Optimizer flag rowid_filter leads to long query (MDEV-21794)
  • WSREP_ON is unnecessarily expensive to evaluate (MDEV-22203
  • Misc wsrep performance optimization (MDEV-7962)

Security

  • Added system user for user view which allows to remove root (MDEV-19650)
  • WolfSSL updated
  • ALTER USER doesn't remove excess authentication plugins from mysql.global_priv (MDEV-21928)
  • mysql_upgrade creating empty global_priv table (MDEV-21244)

Aria

  • Updated aria_pack to support transactional tables and added options: --datadir, --ignore-control-file, --require-control-file, more details here

ALTER TABLE

  • Error on online ADD PRIMARY KEY after instant DROP/reorder (MDEV-21658)
  • Assertion failure in file data0type.cc (MDEV-20726)
  • Server aborts upon attempt to create foreign key on spatial field (MDEV-21792)
  • DROP COLUMN, DROP INDEX is wrongly claimed to be ALGORITHM=INSTANT (MDEV-22465)
  • Introduce a file format constraint to ALTER TABLE. See innodb_instant_alter_column_allowed (MDEV-20590)
  • FORCE all partition to rebuild if any one of the partition does rebuild (MDEV-21832)
  • InnoDB aborts while adding instant column for discarded tablespace (MDEV-22446)

FULLTEXT INDEX

  • Assertion `!table->fts->in_queue' failed in fts_optimize_remove_table (MDEV-21550)
  • FTS thread aborts during shutdown (MDEV-21563)

Optimizer

  • Optimizer, Wrong query results with optimizer_switch="split_materialized=on" (MDEV-21614)
  • SHOW GRANTS does not quote role names properly (MDEV-20076)
  • Paritioning INSERT chooses wrong partition for RANGE partitioning by DECIMAL column (MDEV-21195)

Mariabackup

  • Mariabackup does not honor ignore_db_dirs from server config (MDEV-19347)
  • Mariabackup --ftwrl-wait-timeout never times out on explicit lock (MDEV-20230)

Crash Recovery

  • Running out of file descriptors and eventual crash (MDEV-18027)

Galera

Other

  • HeidiSQL updated to 11.0 (MDEV-22032)
  • Wrong estimate of affected BLOB columns in update of PRIMARY KEY (MDEV-22384)
  • Duplicate key value is silently truncated to 64 characters in print_keydup_error (MDEV-20604)
  • Session tracking returns incorrectly long tracking data (MDEV-22504)
  • Add pam_user_map.so file to binary tarball package (MDEV-21913)
  • mysql_upgrade is made aware of the upstream slave tables to issue warnings when that takes place (MDEV-10047)
  • Corruption for SET GLOBAL innodb_ string variables (MDEV-22393)
  • mysqldump parameter, --ignore-table-data, added (MDEV-22037)
  • Server can fail while replicating conditional comments (Bug#28388217)
  • Added the xml-report option to mysql-test-run (MDEV-22176)
  • Packages and repositories for Ubuntu 20.04 "focal" added
  • As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.4 for Debian 8 "Jessie"

Changelog

For a complete list of changes made in MariaDB 10.4.13, with links to detailed information on each push, see the changelog.

Contributors

For a full list of contributors to MariaDB 10.4.13, see the MariaDB Foundation release announcement. Thanks, and enjoy MariaDB!

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