Update xampp from maria db 10.1 to 10.2

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 : 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
14 : Run xampp/mysql/bin/mysql_upgrade.exe.
15 : 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 please remove or commented this statement in my.ini file in this path xampp/mysql/bin/my.ini file.

Help from this link.

I tried the same solution did not work for me check the error log and based on this i commented out this option because it has been deprecated.

Line number 145 in my.ini file
#innodb_additional_mem_pool_size = 2M

2018-02-17 23:08:47 bf0 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.

It worked for me.