Originally developed by KMRG ITB (http://kmrg.itb.ac.id) (archive)

• This version of GDL compatible with PHP 7+ and MySQL 5.7+.
• Hash function for user password now use SHA2 512 bit replacing OLD_PASSWORD function.
• OAI-PMH support has been updated to the lib from OpenSearch

• Backup old files.
• Replace everything except config and bin folder.
• Increase length of the password hash field to 128 using the following SQL. (Replace gdl_user with actual table name.)

ALTER TABLE `gdl_user` MODIFY COLUMN `password` varchar(128) NOT NULL DEFAULT '' AFTER `user_id`;