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Security / SSLProtocol / SSLProtocol.tlsProtocol1Only

SSLProtocol.tlsProtocol1Only

Specifies that only the TLS 1.0 protocol may be negotiated. Deprecated in iOS.

Declaration

case tlsProtocol1Only

Open on developer.apple.com

SecurityCase

iOS 5.0+iPadOS 5.0+Mac Catalyst 13.1+macOS 10.2+tvOS 9.0+visionOS 1.0+watchOS 2.0+

Built on 2026-05-07