I have a web server on which Apache 2.4.9 and OpenSSL 1.0.1g are installed and I have a certificate installed on the server. I would like to upgrade Apache and the OpenSSL version for Apache 2.4.16 and OpenSSL to 1.0.2d. My concern is that the certificate will stop working if I upgrade and try to install the certificate later.
Can I perform this update? Is there a file (other than the certificates, private keys and httpd.conf) that I need to copy before the update?