"MySQL Community Edition binary distributions are compiled using yaSSL" Source: https://dev.mysql.com/doc/refman/5.7/en/openssl-versus-yassl.html
As far as I know the reason the community edition is compiled against YaSSL is this incompatibility. Enterprise Edition is compiled against OpenSSL, that is possible because enterprise edition is not GPL.
"MySQL Community Edition binary distributions are compiled using yaSSL" /dev.mysql. com/doc/ refman/ 5.7/en/ openssl- versus- yassl.html
Source: https:/
As far as I know the reason the community edition is compiled against YaSSL is this incompatibility. Enterprise Edition is compiled against OpenSSL, that is possible because enterprise edition is not GPL.