Hi Richard,
I revieved a mail to the above effect a month or so back and just wondering what we need to do here to retain functionality? is this something you are aware of and working on?
Extract from the mail I recieved
Summary
Starting June 26, 2019, our REST API will only support connections that use TLS v1.2 and strong cipher suites. Support for TLS v1.0, v1.1 and weak cipher suites will be removed at that time. Customers running older operating systems or legacy network software may need to upgrade their systems to be compatible with these changes.
Note: This was originally announced May 2018 and postponed from June 2018 to June 2019.
Impact
You are receiving this notice because our logs show your account is connecting to our REST API using one of the protocols or cipher suites that will be deprecated in June, 2019. Therefore, action is required on your part to ensure your Twilio service is not interrupted.
More Info here.