Hi, I have a requirement to support the TLS status_request_v2 extension for TLS 1.2 (rfc6961) using OpenSSL 3.x... Looking at the API I've successfully used SSL_CTX_add_custom_ext() to add the extension to the client hello, my server code is also picking this and generating the extension in the server hello, however I can't find an option to create the certificate status message(after the certificate message and before server key exchange). SSL_set_tlsext_status_ocsp_resp() seems to do this but isn't used for status_request_v2. Is this the right starting point or is there another API/functions I should be using? Are there hooks for being able to influence the messages between server hello and server hello done? or is there a patch... that already adds this? Many thanks James