diff --git a/event.go b/event.go
index 1524f32..3a03f46 100644
--- a/event.go
+++ b/event.go
@@ -224,7 +224,7 @@ func (s *Session) onInterface(i interface{}) {
 	case *VoiceStateUpdate:
 		go s.onVoiceStateUpdate(t)
 	}
-	err := s.State.onInterface(s, i)
+	err := s.State.OnInterface(s, i)
 	if err != nil {
 		s.log(LogDebug, "error dispatching internal event, %s", err)
 	}
diff --git a/restapi.go b/restapi.go
index 0bcd2ba..ee563b9 100644
--- a/restapi.go
+++ b/restapi.go
@@ -1867,14 +1867,9 @@ func (s *Session) WebhookEditWithToken(webhookID, token, name, avatar string) (s
 
 // WebhookDelete deletes a webhook for a given ID
 // webhookID: The ID of a webhook.
-func (s *Session) WebhookDelete(webhookID string) (st *Webhook, err error) {
+func (s *Session) WebhookDelete(webhookID string) (err error) {
 
-	body, err := s.RequestWithBucketID("DELETE", EndpointWebhook(webhookID), nil, EndpointWebhooks)
-	if err != nil {
-		return
-	}
-
-	err = unmarshal(body, &st)
+	_, err = s.RequestWithBucketID("DELETE", EndpointWebhook(webhookID), nil, EndpointWebhooks)
 
 	return
 }
diff --git a/state.go b/state.go
index b545c53..7627796 100644
--- a/state.go
+++ b/state.go
@@ -783,7 +783,7 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 }
 
 // onInterface handles all events related to states.
-func (s *State) onInterface(se *Session, i interface{}) (err error) {
+func (s *State) OnInterface(se *Session, i interface{}) (err error) {
 	if s == nil {
 		return ErrNilState
 	}
diff --git a/structs.go b/structs.go
index e811e9e..5dde7aa 100644
--- a/structs.go
+++ b/structs.go
@@ -316,7 +316,7 @@ type Presence struct {
 type Game struct {
 	Name string `json:"name"`
 	Type int    `json:"type"`
-	URL  string `json:"url"`
+	URL  string `json:"url,omitempty"`
 }
 
 // UnmarshalJSON unmarshals json to Game struct
diff --git a/voice.go b/voice.go
index cd0f168..218753a 100644
--- a/voice.go
+++ b/voice.go
@@ -15,7 +15,6 @@ import (
 	"fmt"
 	"log"
 	"net"
-	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -660,8 +659,6 @@ func (v *VoiceConnection) opusSender(udpConn *net.UDPConn, close <-chan struct{}
 		return
 	}
 
-	runtime.LockOSThread()
-
 	// VoiceConnection is now ready to receive audio packets
 	// TODO: this needs reviewed as I think there must be a better way.
 	v.Lock()
@@ -800,7 +797,7 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		}
 
 		// For now, skip anything except audio.
-		if rlen < 12 || recvbuf[0] != 0x80 {
+		if rlen < 12 || (recvbuf[0] != 0x80 && recvbuf[0] != 0x90) {
 			continue
 		}
 
@@ -814,6 +811,11 @@ func (v *VoiceConnection) opusReceiver(udpConn *net.UDPConn, close <-chan struct
 		copy(nonce[:], recvbuf[0:12])
 		p.Opus, _ = secretbox.Open(nil, recvbuf[12:rlen], &nonce, &v.op4.SecretKey)
 
+		if len(p.Opus) > 8 && recvbuf[0] == 0x90 {
+			// Extension bit is set, first 8 bytes is the extended header
+			p.Opus = p.Opus[8:]
+		}
+
 		if c != nil {
 			select {
 			case c <- &p:
diff --git a/wsapi.go b/wsapi.go
index baec234..ab37b5a 100644
--- a/wsapi.go
+++ b/wsapi.go
@@ -250,8 +250,10 @@ func (s *Session) heartbeat(wsConn *websocket.Conn, listening <-chan interface{}
 }
 
 type updateStatusData struct {
-	IdleSince *int  `json:"idle_since"`
-	Game      *Game `json:"game"`
+	IdleSince *int   `json:"since"`
+	Game      *Game  `json:"game"`
+	AFK       bool   `json:"afk"`
+	Status    string `json:"status"`
 }
 
 type updateStatusOp struct {
@@ -274,7 +276,10 @@ func (s *Session) UpdateStreamingStatus(idle int, game string, url string) (err
 		return ErrWSNotFound
 	}
 
-	var usd updateStatusData
+	usd := updateStatusData{
+		Status: "online",
+	}
+
 	if idle > 0 {
 		usd.IdleSince = &idle
 	}