diff --git a/config.go b/config.go
index 3487bc2..afeb4b8 100644
--- a/config.go
+++ b/config.go
@@ -21,17 +21,15 @@ type Config struct {
 	Address []*net.IPNet
 
 	// list of IP (v4 or v6) addresses to be set as the interface’s DNS servers. May be specified multiple times. Upon bringing the interface up, this runs ‘resolvconf -a tun.INTERFACE -m 0 -x‘ and upon bringing it down, this runs ‘resolvconf -d tun.INTERFACE‘. If these particular invocations of resolvconf(8) are undesirable, the PostUp and PostDown keys below may be used instead.
-	// Currently unsupported
 	DNS []net.IP
-	// —if not specified, the MTU is automatically determined from the endpoint addresses or the system default route, which is usually a sane choice. However, to manually specify an MTU to override this automatic discovery, this value may be specified explicitly.
+
+	// MTU is automatically determined from the endpoint addresses or the system default route, which is usually a sane choice. However, to manually specify an MTU to override this automatic discovery, this value may be specified explicitly.
 	MTU int
 
 	// Table — Controls the routing table to which routes are added.
 	Table int
 
 	// PreUp, PostUp, PreDown, PostDown — script snippets which will be executed by bash(1) before/after setting up/tearing down the interface, most commonly used to configure custom DNS options or firewall rules. The special string ‘%i’ is expanded to INTERFACE. Each one may be specified multiple times, in which case the commands are executed in order.
-
-	// Currently unsupported
 	PreUp    string
 	PostUp   string
 	PreDown  string