update copyrights for 2018

[public-inbox.git] / lib / PublicInbox / WwwText.pm

diff --git a/lib/PublicInbox/WwwText.pm b/lib/PublicInbox/WwwText.pm
index 2e58eeb4175265dc98f2e8d478a706072f9cac31..e6d00ea9f00c48e27052f657a812a0e5bc3d3049 100644 (file)
--- a/lib/PublicInbox/WwwText.pm
+++ b/lib/PublicInbox/WwwText.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2016 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2018 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 package PublicInbox::WwwText;
@@ -181,6 +181,10 @@ message threading
        $WIKI_URL/Atom_(standard)
        https://tools.ietf.org/html/rfc4287
 
+      Atom Threading Extensions (RFC4685) is supported:
+
+       https://tools.ietf.org/html/rfc4685
+
     Finally, the gzipped mbox for a thread is available for
     downloading and importing into your favorite mail client: