MariaDB 10.5.0 Release Notes

Download Release Notes Changelog Overview of 10.5

Release date: 3 Dec 2019

MariaDB 10.5 is the current development series of MariaDB. It is an evolution of MariaDB 10.4 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.

MariaDB 10.5.0 is an Alpha release.

For an overview of MariaDB 10.5 see theWhat is MariaDB 10.5? page.

Thanks, and enjoy MariaDB!

Notable Changes

This is the first alpha release in the series.

Notable changes of this release include:

INET 6 Data Type

• New data type for storing IPv6 addresses ().

Syntax

• ()

• ()

• and ()

• Database comments in and statements ()

JSON

• Add information about packed addon fields in ()

S3 Storage Engine

• , a read-only storage engine that stores its data in Amazon S3 ()

Thread Pool

• Information Schema tables (, and ) for internals of generic threadpool ()

InnoDB

• now defaults to OFF ()

• now defaults to full_crc32 ()

• has been removed ()

InnoDB Refactoring

• Remove buf_page_t::newest_modification ()

• Replace recv_sys_t::addr_hash with a std::map ()

• Obsolete internal parser for FK in InnoDB ()

• InnoDB thread pool for background tasks ()

Binary Log

• Extended metadata ()

Query Optimizer

• is improved, now it also shows the time spent checking the WHERE clause and doing other auxiliary operations ()

• ()

Galera

• Galera 4 Inconsistency voting ()

General

• The has a new column showing from which config file a variable derives its value ()

• Switch Perl DBI scripts from DBD::mysql to DBD::MariaDB driver ()

• The max key length is now 2000 bytes, compared to 1000 bytes in .

Do not use alpha releases in production!

Changelog

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

Contributors

For a full list of contributors to , see the .