PolarSSL is now part of ARM Official announcement and rebranded as mbed TLS.

Any plans for TLS 1.3 support?

Jun 15, 2016 11:26


I want to know if there are any plans for TLS 1.3 support in the near future?

Thank you in advance, Miao

Jun 16, 2016 14:34
Paul Bakker

We do have plans to support TLS 1.3.

We don't have dates or a schedule we can share at this point.

Dec 30, 2016 13:44
Joris Aerts

Is there more information available at this time?


Mar 9, 2017 16:15


Do you have an update regarding support of TLS 1.3?


Mar 17, 2017 18:31
Simon Butcher

To build on what Paul has already said, we don't publicly publish roadmaps for mbed TLS, so making a statement about when we would ship with TLS 1.3 support is not something we'd do.

What I can say though is the TLS 1.3 standard is still in development by the IETF, and still has some way to go before it is published, and as Paul has already said, we do plan on supporting it.

Mar 9, 2018 21:27

I know you don't release roadmap items and I understand the IETF has yet to finalize the draft but...

There are multiple releases out for TLSv1.3 from draft 18 - 23, google chrome and cloud flare are actively supporting draft 22 and/or 23 at the moment. Why is mbed TLS so far behind? Several of these companies are on the bleeding edge of supporting TLS 1.3, why not mbedtls?

https://en.wikipedia.org/wiki/Comparison_of_TLS_implementations see "Protocol support"

Mar 15, 2018 17:42
Simon Butcher

Just because we haven't made anything available yet, doesn't mean we're not working on it!

We have a team working on TLS1.3 and I'm afraid that's all I can say. We're not yet in a position to say when that will be available, but just because nothing is public, please don't assume nothing is happening!