Major changes between OpenSSL 1.1.1 and OpenSSL 3.0.0 [under development]
+ o Added 'openssl mac' that uses the EVP_MAC API.
+ o Added 'openssl kdf' that uses the EVP_KDF API.
+ o Add OPENSSL_info() and 'openssl info' to get built-in data.
o Add support for enabling instrumentation through trace and debug
output.
o Changed our version number scheme and set the next major release to
o Added EVP_MAC, an EVP layer MAC API, and a generic EVP_PKEY to EVP_MAC
bridge.
o Removed the heartbeat message in DTLS feature.
+ o Added EVP_KDF, an EVP layer KDF API, and a generic EVP_PKEY to EVP_KDF
+ bridge.
Major changes between OpenSSL 1.1.1 and OpenSSL 1.1.1a [20 Nov 2018]