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- c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
- SPDX-License-Identifier: curl
- Long: tls-max
- Arg: <VERSION>
- Tags: Versions
- Protocols: SSL
- Added: 7.54.0
- Requires: TLS
- See-also: tlsv1.0 tlsv1.1 tlsv1.2 tlsv1.3
- Help: Set maximum allowed TLS version
- Category: tls
- Example: --tls-max 1.2 $URL
- Example: --tls-max 1.3 --tlsv1.2 $URL
- Multi: single
- ---
- VERSION defines maximum supported 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.
- .RS
- .IP "default"
- Use up to recommended TLS version.
- .IP "1.0"
- Use up to TLSv1.0.
- .IP "1.1"
- Use up to TLSv1.1.
- .IP "1.2"
- Use up to TLSv1.2.
- .IP "1.3"
- Use up to TLSv1.3.
- .RE
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