MariaDB 10.1.46 Release Notes

The most recent release of MariaDB 10.1 is:
MariaDB 10.1.48 Stable (GA) Download Now

Download Release Notes Changelog Overview of 10.1

Release date: 10 Aug 2020

MariaDB 10.1 is a previous stable series of MariaDB. It is an evolution of MariaDB 10.0 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL 5.6 and 5.7.

MariaDB 10.1.46 is a Stable (GA) release.

For an overview of MariaDB 10.1 see the What is MariaDB 10.1? page.

Thanks, and enjoy MariaDB!

Notable Changes



  • Innodb updated to 5.6.49
  • Fixed corruption in delete buffering (MDEV-22497)
  • Fixed a deadlock in FLUSH TABLES…FOR EXPORT (MDEV-22890)
  • InnoDB data file extension is not crash-safe (MDEV-23190)
  • Minor fixes related to encryption and FULLTEXT INDEX
  • Crash recovery fix (MDEV-23190)


  • Make the binlog dump thread to log into errorlog a requested GTID position (MDEV-20428)
  • Fix stop of the optimistic parallel slave at requested START-SLAVE-UNTIL position (MDEV-15152)
  • Properly handle RESET MASTER TO value, when the value exceeds the max allowed 2147483647 (MDEV-22451)
  • Correct '' updating by concurrent parallel workers (MDEV-22806)
  • Eliminate deadlock involving parallel workers, STOP SLAVE and FLUSH TABLES WITH READ LOCK (MDEV-23089)


  • ALTER TABLE ... ANALYZE PARTITION ... with EITS reads and locks all rows ... (MDEV-21472)
  • Print ranges in the optimizer trace created for non-indexed columns when optimizer_use_condition_selectivity >2 Now the optimizer trace shows the ranges constructed while getting estimates from EITS (MDEV-22665)
  • LATERAL DERIVED is not clearly visible in EXPLAIN FORMAT=JSON, make LATERAL DERIVED tables visible in EXPLAIN FORMAT=JSON output (MDEV-17568)


  • div_precision_increment is now taken into account for all intermediate calculations. Previously results could be unpredictable. Note that this means results will have a lower precision in some cases - see div_precision_increment (MDEV-19232)
  • XtraDB updated to 5.6.49-89.0
  • TokuDB updated to 5.6.49-89.0
  • MariaDB could crash after changing the query_cache size (MDEV-5924)
  • Errors and SIGSEGV on CREATE TABLE w/ various charsets (MDEV-22111)
  • Crash in CREATE TABLE AS SELECT when the precision of returning type = 0 (MDEV-22502)
  • XA: Reject DDL operations between PREPARE and COMMIT (MDEV-22420)


For a complete list of changes made in MariaDB 10.1.46 with links to detailed information on each push, see the changelog.


For a full list of contributors to MariaDB 10.1.46, see the MariaDB Foundation release announcement.

A file format compatibility bug that was introduced in MariaDB 10.1.0 was fixed in MariaDB 10.1.21.

Using page_compression or non-default innodb_page_size created files that were incompatible with MariaDB 10.0 or MySQL 5.6. MariaDB 10.1.21 and higher will convert affected files from earlier MariaDB 10.1 releases to a compatible format.

This prevents a downgrade to earlier MariaDB 10.1 versions.

See the commit for details.

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