Can Openssl still use a null cipher?

I used to use the *openssl* program to demonstrate a client/server 
connection with no certificates (*openssl s_server -nocert*), using

   *$ openssl s_client -cipher AECDH-NULL-SHA ...*

on the client side.

After a software upgrade, *-trace* indicates that the cipher suites the 
client actually proposes are *TLS_AES_256_GCM_SHA384*,
* TLS_CHACHA20_POLY1305_SHA256*,* TLS_AES_128_GCM_SHA256*, and 
*TLS_EMPTY_RENEGOTIATION_INFO_SCSV* and the handshake fails with no shared 
cipher.

Why does Openssl ignore my cipher request, and is there any other way to do 
a certificate-free connection?

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