Authorize.net Discontinued TLS 1.0/1.1

Is the Authorize.net payment gateway build into Eshop using TLS 1.2, because if not it will cease to function on September 18th. I got the following from authorize.net regarding changes.

Dear Authorize.net Customer

As you may be aware, new PCI DSS requirements state that all payment systems must disable early TLS by 2018. 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.

In addition, we plan to retire the 3DES cipher (a data encryption standard) in production soon. However, the date has not yet been finalized. We will notify you once it has.

Please refer your developer or solution provider to our API Best Practices for cipher recommendations, details about TLS 1.2 platform support, and other integration suggestions.

Note: If you are not using the current version of your web browser, please take a few moments to upgrade it now. Browsers released prior to 2014 may not support TLS 1.2. You can check your browser's TLS support by visiting www.howsmyssl.com/ .

Thank you for your attention to this matter and for being an Authorize.Net merchant.

Sincerely,
Authorize.Net

Authorize.net just pushed the requirement until 2018 but that doesn't solve the problem. Just tried in the sandbox and appears that TLS 1.2 is not supported for authorize.net - can someone please confirm? Using Joom Donation with authorize plugin. Thank you.

Hi Robert

At the moment, our extensions don't support TLS 1.2 for Authorize.net yet. Something we can work on and make it ready next week
I just implemented the change, tested and it worked well (I can only test it in test mode as I don't have a live authorize.net account)
Could you please get this updated library, go to Extensions -> Manager, install it, then test it again and update us with the result?

Regards,

Tuan