Версия curl в CentOS 7

# curl -V
curl 7.29.0 (x86_64-redhat-linux-gnu) libcurl/7.29.0 NSS/3.34 zlib/1.2.7 libidn/1.28 libssh2/1.4.3
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smtp smtps telnet tftp 
Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM NTLM_WB SSL libz unix-sockets 

Новые версии curl'а есть в репозитории city-fan.org

Установка репозитория

# rpm -Uvh http://www.city-fan.org/ftp/contrib/yum-repo/city-fan.org-release-2-1.rhel7.noarch.rpm

Обновление curl

# yum --enablerepo=city-fan.org update curl

Версия 7.60

# curl -V             
curl 7.60.0 (x86_64-redhat-linux-gnu) libcurl/7.60.0 NSS/3.34 zlib/1.2.7 libpsl/0.7.0 (+libicu/50.1.2) libssh2/1.8.0 nghttp2/1.31.1
Release-Date: 2018-05-16
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp 
Features: AsynchDNS IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz HTTP2 UnixSockets HTTPS-proxy PSL Metalink