The Payment Card Industry Security Standards Council (PCI SSC) is extending the migration completion date to 30 June 2018 for transitioning from Secure Sockets Layer (SSL) and Transport Layer Security (TLS) v1.0 to a secure version of TLS (currently v1.1 or higher).
These dates provided by PCI SSC as of December 2015 supersede the original dates issued in both PCI Data Security Standard v3.1 (PCI DSS 3.1) and in the Migrating from SSL and early TLS Information Supplement in April 2015.