MariaDB 11.8.6 Release Notes

MariaDB 11.8.6 is a Stable (GA) release of MariaDB Community Server 11.8, released on 2026-02-04

Download Release Notes Changelog Overview of 11.8

^{Alternate download from mariadb.org}

Release date: 4 Feb 2026

MariaDB 11.8.6 is a Stable (GA) release. It is an evolution of MariaDB 11.7 with several entirely new features.

MariaDB 11.8 is a long-term release.

For an overview of MariaDB 11.8 see the MariaDB 11.8 Changes and Improvements page.

Thanks, and enjoy MariaDB!

Notable Items

Storage Engines

InnoDB

• innodb_undo_log_truncate=ON leads to out-of-bounds write (MDEV-37042)

• Bogus [ERROR] InnoDB: Compressed page checksum mismatch could be reported for ROW_FORMAT=COMPRESSED tables. (MDEV-37306)

• When innodb_buffer_pool_size is not large enough to buffer all log records during crash recovery, InnoDB may fail to recover a page from the doublewrite buffer. (MDEV-37558)

• InnoDB could crash during a workload that is frequently rebuilding or dropping tables by executing statements such as TRUNCATE TABLE, OPTIMIZE TABLE, or DROP TABLE. (MDEV-37755)

• If the server was killed during an operation that creates a .ibd file, such as TRUNCATE TABLE, it could fail to recover. (MDEV-38026)

• MariaBackup fails during rollback of inplace FTS alter table (MDEV-38041)

• In multi-threaded write-heavy workloads, buf_pool.flush_list_mutex could become a point of contention. (MDEV-38069)

• Secondary indexes could be corrupted for InnoDB tables that contain indexed virtual columns. (MDEV-38140)

• Server hang during concurrent set innodb_encryption_threads (MDEV-38271)

• Under some circumstances, some read operations could unnecessarily wait for an InnoDB log write. (MDEV-38589)

Aria

• Fixed crash in Aria when doing a sub transaction like reading an entry from the proc table. (MDEV-23132)

RocksDB

• Server shutdown prevented by RocksDB setting rocksdb_pause_background_work (MDEV-38110)

Spider

• Spider could crash when loop detection variables were artificially manipulated. (MDEV-38368)

Authentication and Privilege System

• Only users with the TRIGGER privilege could see rows in the INFORMATION_SCHEMA.TRIGGERS table. The standard defines that only the columns ACTION_CONDITION, ACTION_STATEMENT and DEFINER columns are shown as NULL unless the user is the owner of the schema or has TRIGGER privilege, the other columns only require any edit privilege (MDEV-37474)

• INSERT ... RETURNING exposes columns for which the user lacks SELECT privilege (MDEV-37950)

• CHECK TABLE command can be executed by users with the table-level CREATE but not with global CREATE (MDEV-37971)

• REFERENCES permission on particular schema is sometimes ignored (MDEV-38209)

• SHA2 auth plugin crash on large packets (MDEV-38365)

Backup

• InnoDB: Failing assertion: tail.trx_no <= last_trx_no (MDEV-36845)

• On Unix-like systems, mariadb-dump --dir can fail due to access permission issue, when server and mariadb-dump run as different OS users. This can happen even if the OS users are in the same group, or mariadb-dump is executed as "root" OS user. (MDEV-38226)

Character Sets

• ASCII strings will be sent to client connections slightly faster. (MDEV-21816)

• On IA-32 and AMD64 depending on the build options, the server could crash due to an unaligned access when sending data to a client connection. (MDEV-37148)

Compiling

• Parsec client plugin is now compiled and packaged on Windows (MDEV-38360)

Data Definition - Alter Table

• OPTIMIZE table not replicating (MDEV-26618)

• Atomic DDL: Assertion !param->got_error failed upon unsuccessful multi-RENAME TABLE (MDEV-27027)

• Cannot remove default value of NOT NULL column (MDEV-37275)

Data Definition - Create Table

• Error message "No savepoint with that name upon ROLLBACK TO SAVEPOINT" shown on ROLLBACK TO SAVEPOINT (MDEV-36787)

• If the server was killed during an operation that creates a .ibd file, such as TRUNCATE TABLE, it could fail to recover. (MDEV-37994)

• (Column) CHECK constraints can cause CREATE TABLE (SELECT) queries to fail (MDEV-37998)

Data Manipulation - Delete

• ER_GET_ERRNO or server crash upon EXPLAIN DELETE with fulltext search subquery (MDEV-31255)

• Allow execution of multi-update/multi-delete queries within the storage engines. (MDEV-37484)

• Server crashes in setup_returning_fields upon 2nd execution of multi-table-styled DELETE from a view (MDEV-38620)

Data Manipulation - Insert

• Empty value inserted if BEFORE trigger and ENUM NOT NULL field (MDEV-37481)

• Server crashes after INSERT.. ON duplicate KEY UPDATE i = DEFAULT; (MDEV-38096)

Data Manipulation - Subquery

• An unresolvable outer reference can cause a server to crash. (MDEV-31632)

Data types

• Unexpected type changing after changing AVG to MAX (MDEV-37888)

• Unexpected Data too long error on subselect as a multiplication argument (MDEV-38626)

Events

• Event scheduler spams the error log (MDEV-38124)

Full-text Search

• Server crash upon moving InnoDB table with fulltext index between databases (MDEV-31892)

• Memory leak in innodb.import_hidden_fts_debug (MDEV-38391)

Galera

• Galera updated to 26.4.25

  • NOTE: Includes increasing the GCS protocol version, which prevents downgrades of individual nodes in the cluster as soon as all nodes have been updated

• wsrep_store_key_val_for_row() may invoke memcpy() on nullptr (MDEV-30732)

• Wrong variable name in the configuration leads Galera to think SST/IST failed, at next restart will request a full SST (MDEV-31517)

• Sequence Fails with Galera Version 26.4.16 and later (MariaDB Server 10.6.17) in the Presence of Enabled Streaming Replication (MDEV-34124)

• Applier thread performing IST is left with REPEATABLE_READ isolation level (MDEV-37229)

• Galera cluster crashes when granting permission to non existing user after setting max_error_count and wsrep_ignore_apply_errors to zero (MDEV-37991)

• Galera nodes should operate when transaction-read-only=ON (MDEV-38073)

• Restore of dumped databases fails since ver 11.8.4 with ERROR 1100 if constraints are in place (MDEV-38216)

• Long blob prefix keys could cause a crash in galera. (MDEV-38374)

• Galera test failure on MDEV-38073 (MDEV-38383)

GIS

• ST_OVERLAPS returns true despite dim(originalInput1) ≠ dim(originalInput2) (MDEV-35765)

• Malformed spatial data could've caused a crash inside InnoDB (MDEV-38372)

JSON

• Unexpected success and result set upon erroneous JSON_VALUE call (MDEV-25148)

• JSON_SCHEMA_VALID() crashes with a long enum (MDEV-38356)

Optimizer

• EXPLAIN FOR CONNECTION (subquery) causes crash (MDEV-36353)

• Server crashes in Item_field::used_tables upon queries from a view (MDEV-36686)

• Assertion in create_ref_for_key() fails with disabled derived_merge (MDEV-37266)

• Incorrect results for INTERSECT ALL in ORACLE mode (MDEV-37325)

• Intermittent Replication Failure on a multi-table DELETE (MDEV-38003)

• Poor cost calculations for index access cause bad query plans for big VARCHARs in 11.x (MDEV-38164)

• Selectivity sampling for LIKE %foo% not done when the table has no sargable conditions (MDEV-38240)

• Wrong result with index_merge_sort_intersection and rowid_filter=on (MDEV-38327)

• Clustered PK not used for Loose Index Scan optimization (MDEV-38426)

• Potentially incorrect result with having reference to group by item. (MDEV-38473)

• We are trying to push aggregate into WHERE (MDEV-38487)

• Crash with low @@optimizer_max_sel_arg_weight and optimizer_trace=on. (MDEV-37510)

Optimizer - CTE

• Segfault when preparing unreferenced select in recursive CTE (MDEV-32299)

Optimizer - Window functions

• ref_ptrs exhaust on multiple ORDER by func from winfunc (MDEV-32317)

OTHER

• Prohibited semijoin with rownum, correctly process in HAVING rownum. (MDEV-37157)

Packaging

• ed25519 client authentication plugin would fail to load for anything but mariadb client utility. This has been fixed now. (MDEV-37527)

• Package mariadb-common conflicts with mysql-common (MDEV-38133)

• Incorrect BuildRequires entry in RHEL10 srpm (MDEV-38237)

• mariadb.socket as a systemd unit was corrected to include WantedBy=sockets.target that enables it to start correctly on boot. (MDEV-38313)

• Debian packages are missing many server include headers, such as handler.h (MDEV-38532)

Parser

• Lots of joins can crash the server (MDEV-38168)

• Fix MASTER_SSL_VERIFY_SERVER_CERT not usable as an unquoted identifier, unlike other CHANGE MASTER keys (MDEV-38194)

Partitioning

• ALTER puts row into different partition for system_time interval partitioning (MDEV-29114)

• INTERVAL partitioning by system time does not work close to the end of timestamp range (MDEV-33289)

• On partitioned tables algorithm is not supported throw "no such file or directory" error (MDEV-35562)

Performance Schema

• sys.ps_setup_save does not restore SQL_LOG_BIN after error, causes replication discrepancy (MDEV-37979)

Plugin - Hashicorp Key Management

• Hashicorp plugin lets keys timeout and doesn't use cached keys on vault errors (MDEV-38203)

Plugin - userstat

• Userstat Plugin CPU_TIME much higher than BUSY_TIME (MDEV-38028)

Protocol

• Auth Switch with Long Password Corrupts Database Name (MDEV-38431)

Replication

• An issue is fixed which could result in server hangs when a replica internally scans its mysql.gtid_slave_pos table contents. (MDEV-20586)

• Race of rolling back and committing transaction to binlog (MDEV-37541)

• For large transactions (i.e. those whose data exceeds the binlog_cache_size limit and spills into tmp files), provides a general performance improvement and fixes a bug that would lead to binlog corruption where the large transaction would have its GTID written into the binary log, without any additional transaction data, if the server's --tmp-dir was full. (MDEV-37662)

• Presence of Spider disables "external" XA commit (MDEV-37972)

• MDEV-37686 fixes are reverted which should restore parallel slave functionality back to normal (MDEV-38212)

• An issue is fixed where GRANT EXECUTE ON PROCEDURE would fail on the master, but would still be replicated and executed successfully on the slave. (MDEV-38506)

Scripts & Clients

• There was a short gap when mariadb-secure-installation temporary files were potentially openable/readable by an unprivileged user. These files may contain database root password. (MDEV-28823)

• mariadb-dump --dir doesn't convert db names (MDEV-38498)

• Missing Null terminator in the definition of mysqldump's --system typelib (MDEV-38642)

Sequences

• Server crashes after select from view (MDEV-28650)

Server

• SIGSEGV in store_server_fields on CREATE SERVER (MDEV-36230)

• Inconsistent results for make_set of cast (MDEV-38233)

• Inconsistent results for NULLIF function (MDEV-38283)

Stored routines

• SHOW FUNCTION CODE package_func crashes on the second execution (MDEV-38451)

Temporal Types

• Inconsistent behaviors when casting into time (MDEV-38006)

Views

• Crash when reading a corrupted view frm file (MDEV-38001)

Virtual Columns

• rr_from_cache does not update generated columns (MDEV-34984)

Changelog

For a complete list of changes made in MariaDB 11.8.6, with links to detailed information on each push, see the changelog.

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