KakaoTalk for Windows

What's new in this version:

General server
- Both (WHERE 0.1) and (WHERE NOT 0.1) return empty set
- Unsafe to log updates on tables referenced by foreign keys with triggers in statement format
- Server crashes in Field::set_warning_truncated_wrong_value
- Crashes server with segfault during role grants
- Unexpected connection abort after certain operations from within stored procedure
- WITH clause does not work with information_schema as default database
- Server crashes in Item_null_result::field_type upon SELECT with CHARSET(date) and ROLLUP
- Server crashes in String::length on queries with functions and ROLLUP
- Prepared statements with st_convexhull hang and eat 100% cpu.
- Assertion item1->type() == Item::FIELD_ITEM && item2->type() == Item::FIELD_ITEM
- GROUP_CONCAT with ORDER BY inside takes a lot of memory while it's executed
- BULK with replace doesn't take the first parameter in account
- RENAMING AND REPLACING MYSQL.USER TABLE CAN LEAD TO A SERVER CRASH
- Server crashes in delete_tree_element / ... / Item_func_group_concat::repack_tree
- Server Crash When Using a Trigger With A Number of Virtual Columns on INSERT/UPDATE
- Server crash in alloc_histograms_for_table_share upon query from information schema

InnoDB
- Merge InnoDB changes from MySQL 5.6.44 and 5.7.26
- InnoDB persistent corruption fixes: MDEV-19426, MDEV-19022, MDEV-19241, MDEV-13942
- InnoDB recovery fixes and speedup: MDEV-18733, MDEV-12699, MDEV-19356, MDEV-19426

Encryption
- innodb_encrypt_tables will work even with innodb_encryption_rotate_key_age=0

Protocol
- BULK with replace doesn't take the first parameter in account

Replication
- Slave crashes in show_status_array upon running a trigger with select from I_S

Mariabackup
- mariabackup continues, despite failing to open a tablespace

Packaging & Misc
- mysql_upgrade_service now allows MySQL 5.7 to MariaDB 10.2 upgrade
- Starting with this release, we are now providing src.rpm packages for some platforms (MDEV-7066)
- As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.2 for Fedora 28

Security
- Add option to PAM authentication plugin to allow case insensitive username matching
- bugfix: multi-update checked privileges on views incorrectly (commit 5057d4637525eadad438d25ee6a4870a4e6b384c)
- during connect, write error log warning for ER_DBACCESS_DENIED_ERROR, if log_warnings > 1
- Malicious SUPER user can possibly change audit log configuration without leaving traces.
- Fixes for the following security vulnerabilities: CVE-2019-2614, CVE-2019-2627 and CVE-2019-2628