Download MariaDB 10.5.1

MariaDB originated as a fork of MySQL, after it was acquired by Oracle in 2009-2010. For an overview of the differences between MariaDB and MySQL you can visit: this one and this one pages right. MariaDB is a powerful open source database server, which is especially popular as a website and forum database. The developers have released version 10.5.1 as beta. The abbreviated announcement of this release is as follows:

MariaDB 10.5.1 Release Notes

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 10.5.1 is a Beta release. Thanks, and enjoy MariaDB!

Notable Changes

InnoDB

• Remove dummy tablespace for the redo log (MDEV-18115)
• Optimize access to InnoDB page header fields (MDEV-21133)
• Remove multiple InnoDB buffer pool instances (MDEV-15058)
  • Deprecate and ignore innodb_buffer_pool_instances and innodb_page_cleaners
  • Columns that indicated the buffer pool instance from the Information Schema innodb_buffer_page, innodb_buffer_page_lru, innodb_buffer_pool_stats, innodb_cmpmem and innodb_cmpmem_reset tables now return a dummy value of 0.
• Deprecate and ignore innodb_log_optimize_ddl (MDEV-19747)
• Prefer MDL to dict_sys.latch for innodb background tasks (MDEV-16678)
• Use fdatasync() for redo log where appropriate (MDEV-21382)
• Replace recv_sys.heap with list of buf_block_t (MDEV-21351)
• Several fixes to server hangs (MDEV-16264)

Optimizer

• Allow packed values ​​of non-sorted fields in the sort buffer (MDEV-21263)

Replication and Gallery

• slave_parallel_mode now defaults to optimistic (MDEV-18648).
• Make REPLICA a synonym for SLAVE in SQL statements (MDEV-20601)
• Galera GTID support (commit)
• Add new mode to wsrep_OSU_method in which Galera checks storage engine of the effected table (MDEV-20051)
• Galera: Replicate MariaDB GTID to other nodes in the cluster (MDEV-20720)

PCRE

• Migrate to PCRE2 (MDEV-14024)

Compatibility

• Port show_old_temporals from MySQL 5.6 (MDEV-19906)

Variables

• Numerous deprecated variables removed (MDEV-18650)
  • multi_range_count
  • thread_concurrency
  • timed_mutexes