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-rw-r--r--lib/ssl/doc/src/ssl.xml5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml
index 2940ccb1e7..ca2dcbb761 100644
--- a/lib/ssl/doc/src/ssl.xml
+++ b/lib/ssl/doc/src/ssl.xml
@@ -189,6 +189,11 @@
<taglist>
+ <tag><c>{protocol, tls | dtls}</c></tag>
+ <item><p>Choose TLS or DTLS protocol for the transport layer security.
+ Defaults to <c>tls</c> Introduced in OTP 20, DTLS support is considered
+ experimental in this release. DTLS over other transports than UDP are not yet supported.</p></item>
+
<tag><c>{cert, public_key:der_encoded()}</c></tag>
<item><p>The DER-encoded users certificate. If this option
is supplied, it overrides option <c>certfile</c>.</p></item>