c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Long: tlsv1.0 Help: Use TLSv1.0 or greater Protocols: TLS Added: 7.34.0 Category: tls Multi: mutex See-also:

  • tlsv1.3 Example:
  • --tlsv1.0 $URL

--tlsv1.0

Forces curl to use TLS version 1.0 or later when connecting to a remote TLS server.

In old versions of curl this option was documented to allow only TLS 1.0. That behavior was inconsistent depending on the TLS library. Use --tls-max if you want to set a maximum TLS version.