Release version 6.7.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
diff --git a/NEWS b/NEWS
index 50029d6..7b47e5e 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+Version 6.7 - January 29, 2024
+	* Feature: support for setting TCP data split
+	* Fix: fix new gcc14 warning
+	* Fix: fix SFF-8472 transceiver module identification (-m)
+	* Misc: code cleanup
+
 Version 6.6 - November 23, 2023
 	* Feature: support for more CMIS transceiver modules (-m)
 	* Fix: fix build on systems with old kernel uapi headers
diff --git a/configure.ac b/configure.ac
index a8f141c..c871558 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(ethtool, 6.6, netdev@vger.kernel.org)
+AC_INIT(ethtool, 6.7, netdev@vger.kernel.org)
 AC_PREREQ(2.52)
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([ethtool.c])
diff --git a/ethtool.8.in b/ethtool.8.in
index dc7d4df..7a3080f 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in
@@ -117,7 +117,7 @@
 .  hy \\n(HY
 ..
 .
-.TH ETHTOOL 8 "November 2023" "Ethtool version @VERSION@"
+.TH ETHTOOL 8 "January 2024" "Ethtool version @VERSION@"
 .SH NAME
 ethtool \- query or control network driver and hardware settings
 .