Yes, SY0-401 will still be available until July 2018 at which time it will be retired. During this grace period, both SY0-401 and SY0-501 exams will be available at the testing centers. Please kindly note that whichever exam you choose to take your Security+ certification will be valid for three years from your exam date.

1. CompTIA Security+ is the certification globally trusted to validate foundational, vendor-neutral IT security knowledge and skills. As a benchmark for best practices in IT security, this certification covers the essential principles for network security and risk management – making it an important stepping stone of an IT security career.

2. The CompTIA Security+ exam will certify the successful candidate has the knowledge and skills required to install and configure systems to secure applications, networks, and devices; perform threat analysis and respond with appropriate mitigation techniques; participate in risk mitigation activities and operate with an awareness of applicable policies, laws, and regulations. The successful candidate will perform these tasks to support the principles of confidentiality, integrity, and availability.

So you can choose the suitable one between the sy0-401 and sy0-501 exams. You can compare with your own situation. Don't forget to select the correct version exam prep for your exam test. We can offer SY0-401 and SY0-501 both exam material as you like. Our version of these two exams are valid in the currently market.