Support OpenSSL 3.0 · Issue #1030 · yhirose/cpp-httplib
https://github.com/openssl/openssl/blob/master/include/openssl/sha.h#L123 yhiroseadded information on Aug 30, 2021 yhirosechanged the title OpenSSL Hash Routines Depricated Support OpenSSL 3.0 when it's release