| Features |
| * Add support for DTLS Connection ID as defined by RFC 9146, controlled by |
| MBEDTLS_SSL_DTLS_CONNECTION_ID (enabled by default) and configured with |
| mbedtls_ssl_set_cid(). |
| |
| Default behavior changes |
| * Previously the macro MBEDTLS_SSL_DTLS_CONNECTION_ID implemented version 05 |
| of the IETF draft, and was marked experimental and disabled by default. |
| It is now no longer experimental, and implements the final version from |
| RFC 9146, which is not interoperable with the draft-05 version. |
| If you need to communicate with peers that use earlier versions of |
| Mbed TLS, then you need to define MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT |
| to 1, but then you won't be able to communicate with peers that use the |
| standard (non-draft) version. |
| If you need to interoperate with both classes of peers with the |
| same build of Mbed TLS, please let us know about your situation on the |
| mailing list or GitHub. |
