MariaDB 11.3.0 Release Notes
The most recent release of MariaDB 11.3 is:
MariaDB 11.3.2 Stable (GA) Download Now
Alternate download from mariadb.org
Download Release Notes Changelog Overview of 11.3
Release date: 20 September 2023
Do not use alpha releases in production!
MariaDB 11.3 is a current development series of MariaDB. It is an evolution of MariaDB 11.2 with several entirely new features.
MariaDB 11.3.0 is a single preview release. Features are to be considered preview, and none are guaranteed to make it into MariaDB 11.3.
The preview is available as a container quay.io/mariadb-foundation/mariadb-devel:11.3-preview.
For an overview of MariaDB 11.3 see the What is MariaDB 11.3? page.
Thanks, and enjoy MariaDB!
Connection Redirection
- Added a redirect mechanism using the redirect_url system variable (MDEV-15935)
- At the moment client-side support is missing
InnoDB
- Shrink temporary tablespaces without restart by setting the innodb_truncate_temporary_tablespace_now system variable. (MDEV-28699)
Replication
- Add keywords "SQL_BEFORE_GTIDS" and "SQL_AFTER_GTIDS" for START SLAVE UNTIL (MDEV-27247). SQL_BEFORE_GTIDS stops the replica when it sees gtids of the option's argument list, without executing them.
SSL/TLS
- Note that this feature did not make it into MariaDB 11.3, but is in MariaDB 11.4.
- SSL is now enabled in the server by default. No configuration necessary, if no server certificate was provided a self-signed certificate will be automatically generated by the server. See Mission Impossible: Zero-Configuration SSL on mariadb.org (MDEV-31856).
- Clients now can validate self-signed server certificates if the mysql_native_password or ed25519 authentication is used and account password is not empty (MDEV-31855).
- Clients now require SSL and have --ssl-verify-server-cert enabled by default (MDEV-31857).
- Replication clients do that too, MASTER_SSL_VERIFY_SERVER_CERT is enabled by default.
- Use
--disable-ssl
or--disable-ssl-verify-server-cert
to revert to the old behavior. - Clients can use new command line options --tls-fp and --tls-fplist to verify the server certificate by its fingerprint
Data Types
- INET4 data types can now be cast into INET6 types (MDEV-31626)
- This means, INET4 values can be compared with INET6 values and can be inserted into INET6 columns, the server can automatically convert INET4 value into INET6 as needed.
Functions
- Key derivation function KDF for generating good encryption keys for AES_ENCRYPT (MDEV-31474)
Date and Time
- DATE_FORMAT function can now print the current time zone abbreviation and current time zone offset from UTC with
%Z
and%z
format specifiers. (MDEV-31684)
Optimizer
- Queries like UCASE(varchar_col)=... can now use an index on
varchar_col
if its collation is case insensitive. An optimizer_switch option, sargable_casefold=ON, has been added to enable this optimization. (MDEV-31496)
Privileges
- Add a new database-level privilege,
SHOW CREATE ROUTINE
that allows to see the routine definition even if the user isn't the routine owner (MDEV-29167)
Processlist
- Added a
SENT_ROWS
column to the Information Schema PROCESSLIST table, as well as extended the display size for the columns in processlist to ensure that most results will fit in display (MDEV-3953)
Application-Time Periods
- Note that this feature did not make it into MariaDB 11.3, but is in MariaDB 11.4.
- Add views for periods in information_schema (MDEV-22597), in particular
- New view INFORMATION_SCHEMA.PERIODS
- New view INFORMATION_SCHEMA.KEY_PERIOD_USAGE
- New columns
IS_SYSTEM_TIME_PERIOD_START
andIS_SYSTEM_TIME_PERIOD_END
in the INFORMATION_SCHEMA.COLUMNS view
OLD_MODE
- Setting a non-default old_mode value will now always issue a deprecation warning (MDEV-31811)
Mariabackup
- mariabackup --innobackupex mode has been deprecated (MDEV-31505)
Spider
- The Spider storage engine now supports table options instead of having to encode them in COMMENT/CONNECTION strings. When any table option is specified, Spider will ignore COMMENT/CONNECTION strings at the same table/partition/subpartition. A new variable spider_ignore_comments is introduced to ignore them globally at all levels (table/partition/subpartition). Another variable, spider_suppress_comment_ignored_warning, is introduced to suppress warnings when Spider ignores COMMENT/CONNECTION strings. (MDEV-28856)
Removed
The following deprecated features and system variables have been removed (MDEV-32104):
- debug (deprecated since MariaDB 5.5.37)
- sr_YU locale (deprecated since MariaDB 10.0.11)
- "engine_condition_pushdown" in optimizer_switch (deprecated since MariaDB 10.1.1)
- date_format, datetime_format, time_format, max_tmp_tables (deprecated since MariaDB 10.1.2)
- wsrep_causal_reads (deprecated since MariaDB 10.1.3)
- "parser" in mroonga table comment (deprecated since MariaDB 10.2.11)
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