MariaDB 10.2.4 RC 发布，已添加 OpenSUSE 42 库

MariaDB 10.2.4 RC 发布了，这个是 MariaDB 10.2 系列的首个候选版。

有以下值得关注的更新：

Default binary log format changed to mixed (MDEV-7635).
Default value of replicate_annotate_row_events changed to ON (MDEV-7635)..
Default value of slave_net_timeout reduced to 60 seconds (MDEV-7635).
DML_only flashback can rollback instances/databases/tables to an old snapshot (MDEV-10570).
Implement ST_AsGeoJSON and ST_GeomFromGeoJSON functions so the spatial features can be imported/exported using GeoJSON format (MDEV-11042).
Zipped File Tables for the CONNECT storage engine (MDEV-11295).
Persistent AUTO_INCREMENT for InnoDB (MDEV-6076).
Default values of the aria_recover and myisam_recover_options system variables changed to BACKUP,QUICK.
Support COM_RESET_CONNECTION MDEV-10340).
innodb_log_files_in_group can now be set to 1 (MDEV-12061).
OpenSUSE 42 repositories have been added in this release
As per the MariaDB Deprecation Policy, this will be the last release of MariaDB 10.2 for Fedora 23