diff --git a/README.md b/README.md
index 1841758..5fd5e88 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Go-MC
-![](https://img.shields.io/badge/Minecraft-1.14.3-blue.svg)
-![](https://img.shields.io/badge/Protocol-490-blue.svg)
+![](https://img.shields.io/badge/Minecraft-1.14.4-blue.svg)
+![](https://img.shields.io/badge/Protocol-497-blue.svg)
 [![GoDoc](https://godoc.org/github.com/Tnze/go-mc?status.svg)](https://godoc.org/github.com/Tnze/go-mc)
 [![Go Report Card](https://goreportcard.com/badge/github.com/Tnze/go-mc)](https://goreportcard.com/report/github.com/Tnze/go-mc)
 [![Build Status](https://travis-ci.org/Tnze/go-mc.svg?branch=master)](https://travis-ci.org/Tnze/go-mc)
@@ -11,7 +11,7 @@ There's some library in Go support you to create your Minecraft client or server
 - [x] Parse NBT
 - [x] Simple MC robot lib
 - [x] Mojang authenticate
-- [x] Minecraft network protocal
+- [x] Minecraft network protocol
 - [ ] World container / encoding
 
 bot:  
@@ -40,4 +40,4 @@ After you install golang tools:
 - Run `go run cmd/ping/ping.go localhost` to ping and list the Miaoscraft mc-server.  
 - Run `go run cmd/daze/daze.go` to join local server at *localhost:25565* as Steve on offline mode.
 
-See `/bot` folder to get more infomation about how to create your own robot.
\ No newline at end of file
+See `/bot` folder to get more information about how to create your own robot.
\ No newline at end of file
diff --git a/bot/ingame.go b/bot/ingame.go
index 6606698..11ae4df 100644
--- a/bot/ingame.go
+++ b/bot/ingame.go
@@ -67,7 +67,7 @@ func (c *Client) handlePacket(p pk.Packet) (disconnect bool, err error) {
 		err = handleSpawnPositionPacket(c, p)
 	case data.PlayerAbilitiesClientbound:
 		err = handlePlayerAbilitiesPacket(c, p)
-		c.conn.WritePacket(
+		_ = c.conn.WritePacket(
 			//ClientSettings packet (serverbound)
 			pk.Marshal(
 				data.ClientSettings,
@@ -138,7 +138,7 @@ func handleSoundEffect(c *Client, p pk.Packet) error {
 	}
 
 	if c.Events.SoundPlay != nil {
-		c.Events.SoundPlay(
+		err = c.Events.SoundPlay(
 			data.SoundNames[SoundID], int(SoundCategory),
 			float64(x)/8, float64(y)/8, float64(z)/8,
 			float32(Volume), float32(Pitch))
@@ -160,7 +160,7 @@ func handleNamedSoundEffect(c *Client, p pk.Packet) error {
 	}
 
 	if c.Events.SoundPlay != nil {
-		c.Events.SoundPlay(
+		err = c.Events.SoundPlay(
 			string(SoundName), int(SoundCategory),
 			float64(x)/8, float64(y)/8, float64(z)/8,
 			float32(Volume), float32(Pitch))
diff --git a/bot/mcbot.go b/bot/mcbot.go
index 22b3913..4a01789 100644
--- a/bot/mcbot.go
+++ b/bot/mcbot.go
@@ -13,7 +13,7 @@ import (
 )
 
 // ProtocolVersion , the protocol version number of minecraft net protocol
-const ProtocolVersion = 490
+const ProtocolVersion = 497
 
 // PingAndList check server status and list online player.
 // Returns a JSON data with server status, and the delay.
diff --git a/data/blocks.go b/data/blocks.go
index cc984f2..364700e 100644
--- a/data/blocks.go
+++ b/data/blocks.go
@@ -35,6 +35,7 @@ func init() {
 
 const blockStatesLen = 11270 + 1
 
+// TODO: check updates of block status
 var blockStatesJSON = `
 {
   "minecraft:air": {
diff --git a/data/en_us.go b/data/en_us.go
index 89251f6..21a8d0a 100644
--- a/data/en_us.go
+++ b/data/en_us.go
@@ -1,5 +1,7 @@
 package data
 
+//TODO: check updates en_us translation
+
 // EnUs , the default language translate data
 // When update this data, replace "%[0-9]\$s" with "%[0-9]s"
 var EnUs = map[string]string{
diff --git a/data/items.go b/data/items.go
index 6110b26..6dd6219 100644
--- a/data/items.go
+++ b/data/items.go
@@ -17,6 +17,7 @@ func init() {
 	}
 }
 
+//TODO: check updates itemIDS
 var itemIDsJSON = ` {
 	"minecraft:air": {
 		"protocol_id": 0
diff --git a/data/packetIDs.go b/data/packetIDs.go
index 7ea34b3..f003c20 100644
--- a/data/packetIDs.go
+++ b/data/packetIDs.go
@@ -1,6 +1,6 @@
 package data
 
-//Clientbound packet IDs
+// Clientbound packet IDs
 const (
 	SpawnObject byte = iota //0x00
 	SpawnExperienceOrb
@@ -98,10 +98,11 @@ const (
 	EntityProperties
 	EntityEffect
 	DeclareRecipes
-	Tags //0x5B
+	Tags
+	AcknowledgePlayerDigging //0x5C
 )
 
-//Serverbound packet IDs
+// Serverbound packet IDs
 const (
 	TeleportConfirm byte = iota //0x00
 	QueryBlockNBT
diff --git a/data/soundIDs.go b/data/soundIDs.go
index cf5f667..1e4288d 100644
--- a/data/soundIDs.go
+++ b/data/soundIDs.go
@@ -1,5 +1,7 @@
 package data
 
+//TODO: check updates sound names
+
 //SoundNames match the sound IDs' name
 var SoundNames = []string{
 	"ambient.cave",