Once installed, here are a few "cheat sheet" commands to get you started: openssl version -a

It is important to note that OpenSSL 1.0.2 and 1.1.1 have reached . This means they no longer receive public security patches.

The OpenSSL Project released OpenSSL 3.0 as a major leap forward, effectively replacing the 1.1.1 series. However, many legacy systems and specific development environments still require OpenSSL 2.x (often referred to via the 1.0.2 or 1.1.x branches depending on the specific API compatibility needed).