MariaDB 10.9.1 Release Notes

The most recent release of MariaDB 10.9 is:MariaDB 10.9.8 Stable (GA) Download Now

Download 10.9.1Release NotesChangelogOverview of 10.9

Release date: 20 May 2022

Do not use non-stable (non-GA) releases in production!

MariaDB 10.9 is a current development series of MariaDB. It is an evolution of MariaDB 10.8 with several entirely new features.

MariaDB 10.9.1 is a Release Candidate (RC) release.

For an overview of MariaDB 10.9 see theWhat is MariaDB 10.9? page.

Thanks, and enjoy MariaDB!

Notable Items

InnoDB

• innodb_disallow_writes removed (MDEV-25975)

• InnoDB gap locking fixes (MDEV-20605, MDEV-28422)

• InnoDB performance improvements (MDEV-27557, MDEV-28185, MDEV-27767, MDEV-28313, MDEV-28137, MDEV-28465, MDEV-26789)

• Backup regression fixes (MDEV-27919)

• InnoDB portability: FreeBSD futexes (MDEV-26476), POWER and s390x transactional memory (MDEV-27956)

• ALTER TABLE: Fixed bogus duplicate key errors (MDEV-15250)

• DDL and crash recovery fixes (MDEV-27274, MDEV-27234, MDEV-27817)

• Requests to recalculate persistent statistics were sometimes lost (MDEV-27805)

• Deprecate the parameter innodb_change_buffering (MDEV-27735)

• Allow SET GLOBAL innodb_log_file_size (MDEV-27812)

Replication

• New options for mysqlbinlog --do-domain-ids, --ignore-domain-ids, and --ignore-server-ids are implemented (MDEV-20119)

• Semisync-slave server recovery is refined to correctly rollback prepared transaction (MDEV-28461)

• Circular semisync setup endless event circulation is handled (MDEV-27760)

• Semisync-slave server recovery is extended to work on new server_id server (MDEV-27342)

• Server initialization time gtid_slave_pos purge related reason of crashing in binlog background thread is removed (MDEV-26473)

• Shutdown of the semisync master can't produce inconsistent state anymore (MDEV-11853)

• Binlogs disappear after rsync IST (MDEV-28583)

• master crash is eliminated in compressed semisync replication protocol with packet counting amendment (MDEV-25580)

• OPTIMIZE on a sequence does not cause counterfactual ER_BINLOG_UNSAFE_STATEMENT anymore (MDEV-24617)

• Automatically generated Gtid_log_list_event is made to recognize within replication event group as a formal member (MDEV-28550)

• Replication unsafe INSERT .. ON DUPLICATE KEY UPDATE using two or more unique key values at a time with MIXED format binlogging is corrected (MDEV-28310)

• Replication unsafe INSERT .. ON DUPLICATE KEY UPDATE stops issuing unnecessary "Unsafe statement" with MIXED binlog format (MDEV-21810)

• Incomplete replication event groups are detected to error out by the slave IO thread (MDEV-27697)

• mysqlbinlog --stop-never --raw now flushes the result file to disk after each processed event so the file can be listed with the actual bytes (MDEV-14608)

Backup

• Incorrect binlogs after Galera SST using rsync and MariaDB Backup (MDEV-27524)

• MariaDB Backup does not detect multi-source replication slave (MDEV-21037)

• Useless warning "InnoDB: Allocated tablespace ID for , old maximum was 0" during backup stage (MDEV-27343)

• MariaDB Backup prepare fails for incrementals if a new schema is created after full backup is taken (MDEV-28446)

Optimizer

• Query performance degradation in newer MariaDB versions when using many tables (MDEV-28073)

• A SEGV in Item_field::used_tables/update_depend_map_for_order... (MDEV-26402)

• ANALYZE FORMAT=JSON fields are incorrect for UNION ALL queries (MDEV-27699)

• Subquery in an UPDATE query uses full scan instead of range (MDEV-22377)

• Assertion `item1->type() == Item::FIELD_ITEM ... (MDEV-19398)

• Server crashes in Expression_cache_tracker::fetch_current_stats (MDEV-28268)

• MariaDB server crash at Item_subselect::init_expr_cache_tracker (MDEV-26164, MDEV-26047)

• Crash with union of my_decimal type in ORDER BY clause (MDEV-25994)

• SIGSEGV in st_join_table::cleanup (MDEV-24560)

• Assertion `!eliminated' failed in Item_subselect::exec (MDEV-28437)

Spider

• spider_crd_type and spider_crd_weight have been deprecated (MDEV-28010)

General

• Auto-create history partitions for system-versioned tables (MDEV-17554)

• mariadb-dump --order-by-size option (MDEV-28074)

• Server error messages are now available in Chinese (MDEV-28227)

• For RHEL/CentOS 7, non x86_64 architectures are no longer supported upstream and so our support will also be dropped with this release

• Packages for Ubuntu 22.04 LTS "Jammy" and Fedora 36 are now available in this release

• As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.5 for Debian 9 "Stretch", Ubuntu 21.10 "Impish", and Fedora 34

Security

• Fixes for the following security vulnerabilities:

  • CVE-`-```

Changelog

For a complete list of changes made in MariaDB 10.9.1, with links to detailed information on each push, see the changelog.

Contributors

For a full list of contributors to MariaDB 10.9.1, see the MariaDB Foundation release announcement.

Do not use non-stable (non-GA) releases in production!

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