*William McCormack*
-### Changes between 3.6 and 4.0 [xx XXX xxxx]
-
- * Added support for RFC 8701 GREASE (Generate Random Extensions And Sustain
- Extensibility). When `SSL_OP_GREASE` is set, the TLS client injects
- reserved GREASE values into cipher suites, supported versions, supported
- groups, signature algorithms, key share, and extensions in the ClientHello
- to prevent ecosystem ossification. The `openssl s_client` command gains a
- `-grease` option to enable this.
-
- *William McCormack*
-
### Changes between 3.6 and 4.0 [xx XXX xxxx]
* Added `-expected-rpks` option to the `openssl s_client`