there's currently no post on openssl.org but i expect them to publish one soon. Also, now with all the OpenSSL sh*tstorm this year, I really wonder if LibreSSL is vulnerable to this security problem...
I wish it was still possible to override these per profile. Last time I tried, the knobs were gone and had no effect whatsoever to enable safer defaults. I used to be able to force a minimum TLS version and enable only select few ciphers.
security.tls.version.min security.tls.version.max
security.ssl3.<cipher_suite>