curl/docs/cmdline-opts/tls-max.md

c	SPDX-License-Identifier	Long	Arg	Tags	Protocols	Added	Requires	Help	Category	Multi	See-also	Example
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.	curl	tls-max	<VERSION>	Versions	TLS	7.54.0	TLS	Maximum allowed TLS version	tls	single	tlsv1.0 tlsv1.1 tlsv1.2 tlsv1.3	--tls-max 1.2 $URL --tls-max 1.3 --tlsv1.2 $URL

--tls-max

Set the maximum allowed TLS version. The minimum acceptable version is set by tlsv1.0, tlsv1.1, tlsv1.2 or tlsv1.3.

If the connection is done without TLS, this option has no effect. This includes QUIC-using (HTTP/3) transfers.

default

Use up to recommended TLS version.

1.0

Use up to TLSv1.0.

1.1

Use up to TLSv1.1.

1.2

Use up to TLSv1.2.

1.3

Use up to TLSv1.3.