Update pdns/dnsdistdist/docs/reference/config.rst

Co-authored-by: Remi Gacogne <github@coredump.fr>

diff --git a/pdns/dnsdistdist/docs/reference/config.rst b/pdns/dnsdistdist/docs/reference/config.rst
index 262b6d0b33f15daaf11994ea0aa713ec3b26902a..33987be6b3c9263b28347432130e9057d831519e 100644 (file)
--- a/pdns/dnsdistdist/docs/reference/config.rst
+++ b/pdns/dnsdistdist/docs/reference/config.rst
@@ -1653,9 +1653,9 @@ Other functions
 
 .. function:: setTCPFastOpenKey(key)
 
-  .. versionadded:: 1.7.1
+  .. versionadded:: 1.8.0
 
-  Set a specified same ``TCP Fast Open`` key for all frontends.
+  Set the supplied ``TCP Fast Open`` key on all frontends. This can for example be used to allow all dnsdist instances in an anycast cluster to use the same ``TCP Fast Open`` key, reducing round-trips.
 
   :param string key: The format of the key can be found in ``/proc/sys/net/ipv4/tcp_fastopen_key``