In order to improve security of RTMPS (RTMP over TLS) connections, we have deprecated TLS versions 1.0 and 1.1 (which are considered insecure) for our live ingest endpoints.
At this time, only TLS versions 1.2 and 1.3 are supported, however the older versions are not immediately being disabled. We strongly recommend that any clients connecting using these obsolete TLS versions be upgraded promptly. Unencrypted RTMP remains available.