what are the changes I need to make to make sure authorize.net works perfectly after authorize.net has sent this message as given below
Your Payment Gateway ID: Dear Authorize.Net Merchant: As you may be aware, new PCI DSS requirements state that all payment systems must disable early TLS by 2018.
TLS FAQs Merchant Interface Transport Layer Security (TLS), is a technology used to encrypt sensitive information sent via the Internet. TLS is the replacement for Secure Sockets Layer (SSL). In preparation for this requirement, Authorize.Net plans to disable TLS 1.0 and TLS 1.1 on the following dates:
Sandbox: COMPLETE Production: September 18, 2017
We have disabled the sandbox in advance of production to allow you and your developer time to test your website or payment solution and ensure you are no longer using TLS 1.0 or 1.1 prior to September 18th.
Please contact your web developer or payment solution provider, as well as your web hosting company, to confirm that they can support TLS 1.2 for your API connections.