The CompTIA A+ 900 series exams have been here since December 2015, however they are now the law of the land when it comes to A+ certification. CompTIA retired the A+ 800 series exams on June 30, 2016 with combinations of the two series not allowed. Students must study for, take and pass the two 900 series exams (220-901 and 220-902) to achieve certification.
About the CompTIA A+ 900 Series Exams

About CompTIA A+ Certification
IT success stories start with CompTIA A+ certification. It validates understanding of the most common hardware and software technologies in business and certifies the skills necessary to support complex IT infrastructures. CompTIA A+ is a powerful credential that helps IT professionals worldwide ignite their IT career.
Held by over 1 million IT professionals worldwide, CompTIA A+ is the most essential IT certification for establishing an IT career. If you’re new to the IT industry, this will help you put your best foot forward. And if you’re already an IT professional, the CompTIA A+ certification validates your skills and can boost your career.