V5.0.6

Added: Pagination for browsing variables on study detail page
Added: Catalog search now supports searching for country by using ISO2, ISO3 or country name
Fixed: Database installation script for Microsoft SQL Server (SQLSRV)
Updated: Licensed requests admin page optimized to handle large number of requests
Updated: Licensed requests 'export to CSV', exports all fields to CSV
Updated: Updated version of JQuery to v3.5.1
Updated: Updated mpdf and phpmailer to newer versions

DB changes:

• Renamed field 'key' to 'api_key' for table 'api_keys'. To update the database, run the following SQL:

ALTER TABLE `api_keys` DROP INDEX `key_UNIQUE`;
ALTER TABLE `api_keys` CHANGE `key` `api_key` VARCHAR(255) NOT NULL;
ALTER TABLE `api_keys` ADD UNIQUE KEY `idx_api_key_unq` (`api_key`);