TLS protocol version?

Howdy!

If you are asking about one of the Woo-developed Authorize.net plugins here or here, then no. These plugins already supports TLS 1.2

However, you’ll want to double-check that your server and cURL installation utilizes TLS 1.2

You can use this (free) plugin to check if your server is compatible: https://www.ads-software.com/plugins/tls-1-2-compatibility-test/

If not, then you’ll need to contact your host.

Cheers!