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 The following requirements are recommended, and if met will provide a better experience and more full use of available features. 

1. PHP version 7.2 through 7.44 or 8.1
2. PDO, pdo_mysql, curl (version 7.10.5 or later), openssl (version 1.1.1a or later), gmp, imap, json, ldap, libxml, mailparse, iconv, mbstring, simplexml, soap, gd, and zlib PHP extensions
3. MySQL version 5.7.7, or MariaDB version 10.2.2 or later with max_allowed_packet = 128M or higher, and wait_timeout = 3600
4. Apache, IIS, or LiteSpeed Web Server
5. ionCube PHP loader
6. memory_limit set to 256 MB or greater
7. max_input_vars set to 10000 or greater (Config options with many options/prices can exceed the default 1000)