We have some customers that are still using CentOS 5 but require PCI compliance. PCI-DSS 3.1 that was released in April says that TLSv1 is no longer good enough and to be fully compliant folks have to be able to use TLSv1.1 and/or TLSv1.2
CentOS 5's built in OpenSSL can only use up to TLSv1 so...
