# HG changeset patch
# User jbe
# Date 1619607793 -7200
# Node ID 62901393deb010d9ea9edca26e07b045337b28eb
# Parent  15dfa1e9b629b5c6835c000f2de8c224bac1970c
Updated reference regarding dual IPv6/IPv4 sockets

diff -r 15dfa1e9b629 -r 62901393deb0 reference.txt
--- a/reference.txt	Wed Apr 28 12:59:27 2021 +0200
+++ b/reference.txt	Wed Apr 28 13:03:13 2021 +0200
@@ -456,7 +456,7 @@
 Attempts to open a TCP port for listening. To listen on the loopback interface,
 use "::1" as hostname if IPv6 shall be used, or use "127.0.0.1" as hostname if
 IPv4 shall be used. To listen on all available interfaces, use "::" (IPv6) or
-"0.0.0.0" (IPv4) respectively.
+"0.0.0.0" (IPv4) respectively. When specifying nil as hostname, then both IPv6 and IPv4 are used on the same socket.
 
 In case of an I/O error, nil (as first return value) plus an error message (as
 second return value) may be returned. On success, a listener object is returned