Update xampp from maria db 10.1 to 10.2.txt

1 : Shutdown or Quit your XAMPP server from Xampp control panel.
2 : Download the ZIP version of MariaDB
3 : Rename the xampp/mysql folder to mysql_old.
4 : Unzip or Extract the contents of the MariaDB ZIP file into your XAMPP folder.
5 : Rename the MariaDB folder, called something like mariadb-5.5.37-win32, to mysql.
6 : Rename xampp/mysql/data to data_old.
7 : Copy the xampp/mysql_old/data folder to xampp/mysql/.
8 : Copy the xampp/mysql_old/backup folder to xampp/mysql/.
9 : Copy the xampp/mysql_old/scripts folder to xampp/mysql/.
10: Copy mysql_uninstallservice.bat and mysql_installservice.bat from xampp/mysql_old/ into xampp/mysql/.
11 : Copy xampp/mysql_old/bin/my.ini into xampp/mysql/bin.
12 : Edit xampp/mysql/bin/my.ini using a text editor like Notepad. Find skip-federated and add a # in front (to the left) of it to comment out the line if it exists. Save and exit the editor.
13: comment innodb_additional_mem_pool_size = 2M on my.ini
14 : Start-up XAMPP.
Note If you can't get mysql to start from Xampp control panel. Add this 'skip-grant-tables' statement anywhere in xampp/mysql/bin/my.ini file
15 : Run xampp/mysql/bin/mysql_upgrade.exe.
16 : Shutdown and restart MariaDB (MySQL).
If still mysql is not started then follow below Note steps(!Important)

Note :mysql error log file: c:\xampp\mysql\bin\mysqld.exe: unknown variable 'innodb_additional_mem_pool_size=2M' like