MariaDB 10.4.20 Release Notes
Release date: 23 Jun 2021
MariaDB 10.4 is a previous stable series of MariaDB. It is an evolution of MariaDB 10.3 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL.
Thanks, and enjoy MariaDB!
This version of MariaDB is being released now to fix the following two regressions:
- Table alias from previous statement interferes later commands (MDEV-25672)
- Join using derived with aggregation returns incorrect results (MDEV-25714)
In addition to the above, this release also contains the following fixes:
- Change buffer entries are lost on InnoDB restart (MDEV-25869)
- InnoDB spatial indexes miss large geometry fields after MDEV-25459 (MDEV-25758)
- Double free of transaction during truncate operation (MDEV-25663)
- Double free of table when inplace alter FTS add index fails (MDEV-25721)
- Potential hang in purge for virtual columns (MDEV-25664)
- Change buffer entries for secondary indexes are lost on InnoDB restart (MDEV-25869)
- Do not replicate killed multi-table OPTIMIZE TABLE when the signal arrives before any table has been processed (MDEV-22530)
- Fix optistic parallel applier to not deadlock on admin commands OPTIMIZE, REPAIR, and ANALYZE (MDEV-17515)
- Backport MDEV-20821 parallel slave server shutdown hang (MDEV-22370)
MongoDB protocol support files for the CONNECT engine are missing in this release.
If you want to use CONNECT engine with MongoDB, you need to download
Mongo2.jar or Mongo3.jar and put a path to this file into the
connect_class_path in the
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