Magento has released the Magento 2.3 on November 28, 2018 with impressive features. Its offers new tools to enhance both merchants and developer experiences.

Operating System	Linux x86-64
Composer	Composer is required for developers to contribute to the Magento 2 codebase or to develop Magento extensions.
Web Server	Apache 2.2 or 2.4 nginx 1.x
Database	MySQL 5.6, 5.7
PHP	7.1.3+ 7.2+
Required PHP extensions	bc-math (Magento Commerce only) ctype curl dom gd intl mbstring hash openssl PDO/MySQL SimpleXML soap spl libxml xsl zip json iconv
PHP OPcache	We strongly recommend you verify that PHP OPcache is enabled for performance reasons.
SSL	A valid security certificate is required for HTTPS.
Mail server	Mail Transfer Agent (MTA) or an SMTP server
Optional but recommended	php_xdebug 2.5.x or later mcrypt PHPUnit (as a command-line tool) 6.2.0