diff --git a/src/SharedConstants.h b/src/SharedConstants.h
index dcae293..f97ea36 100755
--- a/src/SharedConstants.h
+++ b/src/SharedConstants.h
@@ -16,9 +16,8 @@ namespace SharedConstants
 {
 	// 0.5.0 uses NPv8
 	// 0.6.0 uses NPv9
-	// TODO: Better proto check
-    const int NetworkProtocolVersion = 10;
-	const int NetworkProtocolLowestSupportedVersion = 10;
+    const int NetworkProtocolVersion = 9;
+	const int NetworkProtocolLowestSupportedVersion = 9;
 	const int GameProtocolVersion = 1;
 	const int GameProtocolLowestSupportedVersion = 1;
 
diff --git a/src/client/Minecraft.h b/src/client/Minecraft.h
index 1a90b12..a7f5abc 100755
--- a/src/client/Minecraft.h
+++ b/src/client/Minecraft.h
@@ -120,6 +120,8 @@ public:
 	void optionUpdated(OptionId option, bool value);
 	void optionUpdated(OptionId option, float value);
 	void optionUpdated(OptionId option, int value);
+
+	int getTicks() { return ticks; }
 #ifdef __APPLE__
     bool _isSuperFast;
     bool isSuperFast() { return _isSuperFast; }
@@ -197,7 +199,8 @@ public:
 	std::string externalCacheStoragePath;
 protected:
 	Timer timer;
-    // @note @attn @warn: this is dangerous as fuck!
+
+	// @note @attn @warn: this is dangerous as fuck!
 	volatile bool isGeneratingLevel;
 	bool _hasSignaledGeneratingLevelFinished;
 
diff --git a/src/client/renderer/entity/PlayerRenderer.cpp b/src/client/renderer/entity/PlayerRenderer.cpp
index 96ee2eb..092b9dc 100755
--- a/src/client/renderer/entity/PlayerRenderer.cpp
+++ b/src/client/renderer/entity/PlayerRenderer.cpp
@@ -77,10 +77,10 @@ void PlayerRenderer::render(Entity* mob_, float x, float y, float z, float rot,
 		model = desired;
 		humanoidModel = desired;
 	}
-	LOGI("[PlayerRenderer] %s: skin=%s, modelTex=%dx%d, desired=%s\n", 
+	/* LOGI("[PlayerRenderer] %s: skin=%s, modelTex=%dx%d, desired=%s\n", 
 		((Player*)mob)->name.c_str(), mob->getTexture().c_str(), 
 		humanoidModel->texWidth, humanoidModel->texHeight,
-		(desired == playerModel64 ? "64" : "32"));
+		(desired == playerModel64 ? "64" : "32")); */
 	HumanoidMobRenderer::render(mob_, x, y, z, rot, a);
 }
 
diff --git a/src/network/ClientSideNetworkHandler.cpp b/src/network/ClientSideNetworkHandler.cpp
index aa15ed3..c2eb5a7 100755
--- a/src/network/ClientSideNetworkHandler.cpp
+++ b/src/network/ClientSideNetworkHandler.cpp
@@ -87,7 +87,7 @@ void ClientSideNetworkHandler::onConnect(const RakNet::RakNetGUID& hostGuid)
 	serverGuid = hostGuid;
 
 	clearChunksLoaded();
-	LoginPacket packet(minecraft->options.getStringValue(OPTIONS_USERNAME).c_str(), SharedConstants::NetworkProtocolVersion);
+	LoginPacket packet(minecraft->options.getStringValue(OPTIONS_USERNAME).c_str(), SharedConstants::NetworkProtocolVersion, true);
 	raknetInstance->send(packet);
 }
 
diff --git a/src/network/ServerSideNetworkHandler.cpp b/src/network/ServerSideNetworkHandler.cpp
index 6032c0e..0a2fe13 100755
--- a/src/network/ServerSideNetworkHandler.cpp
+++ b/src/network/ServerSideNetworkHandler.cpp
@@ -21,6 +21,7 @@
 #include "../raknet/RakPeerInterface.h"
 #include "../raknet/PacketPriority.h"
 #include "platform/log.h"
+#include "util/Mth.h"
 #include "world/item/ItemInstance.h"
 #include "world/level/storage/LevelStorage.h"
 #include "world/phys/Vec3.h"
@@ -196,7 +197,6 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, LoginPac
 
 	LOGI("LoginPacket\n");
 	
-	printf("%d", packet->clientNetworkVersion);
 	int loginStatus = LoginStatus::Success;
 	//
 	// Bad/incompatible client version
@@ -216,8 +216,9 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, LoginPac
 	//
 	// Valid client version
 	//
-	Player* newPlayer = new ServerPlayer(minecraft, level);
-
+	
+	Player* newPlayer = new ServerPlayer(minecraft, level, packet->newProto);
+	
 	minecraft->gameMode->initAbilities(newPlayer->abilities);
 	newPlayer->owner = source;
 	newPlayer->name = packet->clientName.C_String();
@@ -251,6 +252,11 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, LoginPac
         ).write(&bitStream);
 
         rakPeer->Send(&bitStream, HIGH_PRIORITY, RELIABLE_ORDERED, 0, source, false);
+		
+		if (!packet->newProto) {
+			MessagePacket packet("You're using outdated client. Some features disabled.");
+			raknetInstance->send(packet);
+		}
 	}
 }
 
@@ -393,12 +399,22 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, MovePlay
 	//LOGI("MovePlayerPacket\n");
 	if (Entity* entity = level->getEntity(packet->entityId))
 	{
-		
-		entity->xd = entity->yd = entity->zd = 0;
-		entity->lerpTo(packet->x, packet->y, packet->z, packet->yRot, packet->xRot, 3);
+		ServerPlayer* player = (ServerPlayer*) getPlayer(source);
 
-		// broadcast this packet to other clients
-		redistributePacket(packet, source);
+		float vectorDist = sqrt( (packet->x - entity->x) * (packet->x - entity->x)  + 
+									(packet->y - entity->y) * (packet->y - entity->y) +
+									(packet->z - entity->z) * (packet->z - entity->z));
+		float speed = vectorDist / (minecraft->getTicks() - player->getLastMoveTicks());
+
+		if (speed < 2.5f) {
+			entity->xd = entity->yd = entity->zd = 0;
+			entity->lerpTo(packet->x, packet->y, packet->z, packet->yRot, packet->xRot, 3);
+		
+			// broadcast this packet to other clients
+			redistributePacket(packet, source);
+		}
+	
+		player->setLastMoveTicks(minecraft->getTicks());
 	}
 }
 
@@ -534,7 +550,7 @@ void ServerSideNetworkHandler::handle(const RakNet::RakNetGUID& source, PlayerAr
     if (!player) return;
     if (rakPeer->GetMyGUID() == player->owner) return;
 
-	LOGI("Equip armor: %i %i %i %i\n", packet->head, packet->torso, packet->legs, packet->feet);
+	// LOGI("Equip armor: %i %i %i %i\n", packet->head, packet->torso, packet->legs, packet->feet);
 
     packet->fillIn(player);
     redistributePacket(packet, source);
diff --git a/src/network/packet/LoginPacket.h b/src/network/packet/LoginPacket.h
index b44a44a..50caee3 100755
--- a/src/network/packet/LoginPacket.h
+++ b/src/network/packet/LoginPacket.h
@@ -9,17 +9,20 @@ public:
 	RakNet::RakString clientName;
 	int clientNetworkVersion;
 	int clientNetworkLowestSupportedVersion;
+	bool newProto;
 
 	LoginPacket()
 	:	clientNetworkVersion(-1),
-		clientNetworkLowestSupportedVersion(-1)
+		clientNetworkLowestSupportedVersion(-1),
+		newProto(false)
 	{
 	}
 
-	LoginPacket(const RakNet::RakString& clientName, int clientVersion)
+	LoginPacket(const RakNet::RakString& clientName, int clientVersion, bool newProto)
 	:	clientName(clientName),
 		clientNetworkVersion(clientVersion),
-		clientNetworkLowestSupportedVersion(clientVersion)
+		clientNetworkLowestSupportedVersion(clientVersion),
+		newProto(newProto)
 	{
 	}
 
@@ -29,6 +32,7 @@ public:
 		bitStream->Write(clientName);
 		bitStream->Write(clientNetworkVersion);
 		bitStream->Write(clientNetworkLowestSupportedVersion);
+		bitStream->Write(newProto);
 	}
 
 	void read(RakNet::BitStream* bitStream)
@@ -39,6 +43,11 @@ public:
 		if (bitStream->GetNumberOfUnreadBits() > 0) {
 			bitStream->Read(clientNetworkVersion);
 			bitStream->Read(clientNetworkLowestSupportedVersion);
+			
+			// Checking for new proto
+			if (bitStream->GetNumberOfUnreadBits() > 0) {
+				bitStream->Read(newProto);
+			}
 		}
 	}
 
diff --git a/src/server/ServerLevel.cpp b/src/server/ServerLevel.cpp
index e57d6b8..d65ee86 100755
--- a/src/server/ServerLevel.cpp
+++ b/src/server/ServerLevel.cpp
@@ -12,16 +12,19 @@ ServerLevel::ServerLevel(LevelStorage* levelStorage, const std::string& levelNam
 void ServerLevel::updateSleepingPlayerList() {
 	bool allPlayersWasSleeping = allPlayersAreSleeping;
 	allPlayersAreSleeping = !players.empty();
-	for(PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
+	
+	for (PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
 		Player* player = *it;
-		if(!player->isSleeping()) {
+		
+		if (!player->isSleeping()) {
 			allPlayersAreSleeping = false;
 			break;
 		}
 	}
-	if(!allPlayersWasSleeping && allPlayersAreSleeping) {
+	if (!allPlayersWasSleeping && allPlayersAreSleeping) {
 		levelEvent(NULL, LevelEvent::ALL_PLAYERS_SLEEPING, 0, 0, 0, 0);
-		for(PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
+		
+		for (PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
 			(*it)->setAllPlayersSleeping();
 		}
 	}
@@ -29,23 +32,26 @@ void ServerLevel::updateSleepingPlayerList() {
 
 void ServerLevel::awakenAllPlayers() {
 	allPlayersAreSleeping = false;
-	for(PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
+	
+	for (PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
 		Player* player = *it;
-		if(player->isSleeping()) {
+		
+		if (player->isSleeping()) {
 			player->stopSleepInBed(false, false, true);
 			player->health = Player::MAX_HEALTH;
 			player->lastHealth = Player::MAX_HEALTH; 
 		}
 	}
+	
 	SetHealthPacket packet(Player::MAX_HEALTH);
 	raknetInstance->send(packet);
 }
 
 bool ServerLevel::allPlayersSleeping() {
-	if(allPlayersAreSleeping && !isClientSide) {
+	if (allPlayersAreSleeping && !isClientSide) {
 		// all players are sleeping, but have they slept long enough?
-		for(PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
-			if(!(*it)->isSleepingLongEnough()) {
+		for (PlayerList::iterator it = players.begin(); it != players.end(); ++it) {
+			if (!(*it)->isSleepingLongEnough()) {
 				return false;
 			}
 		}
@@ -55,13 +61,17 @@ bool ServerLevel::allPlayersSleeping() {
 	return false;
 }
 
-void ServerLevel::tick(){
+void ServerLevel::tick() {
 	super::tick();
-	if(allPlayersSleeping()) {
+
+	if (allPlayersSleeping()) {
 		long newTime = levelData.getTime() + TICKS_PER_DAY;
+		
 		levelData.setTime(newTime - (newTime % TICKS_PER_DAY));
+		
 		SetTimePacket packet(levelData.getTime());
 		raknetInstance->send(packet);
+		
 		awakenAllPlayers();
 	}
 }
diff --git a/src/server/ServerPlayer.cpp b/src/server/ServerPlayer.cpp
index c27ae38..3f89033 100755
--- a/src/server/ServerPlayer.cpp
+++ b/src/server/ServerPlayer.cpp
@@ -22,11 +22,12 @@
 #include "network/packet/SendInventoryPacket.h"
 #include "world/entity/player/Inventory.h"
 
-ServerPlayer::ServerPlayer( Minecraft* minecraft, Level* level )
+ServerPlayer::ServerPlayer( Minecraft* minecraft, Level* level, bool proto)
 :   super(level, minecraft->isCreativeMode()),
 	_mc(minecraft),
 	_prevHealth(-999),
-	_containerCounter(0)
+	_containerCounter(0),
+	isNewProto(proto)
 {
 	// hasFakeInventory = true;
 	footSize = 0;
diff --git a/src/server/ServerPlayer.h b/src/server/ServerPlayer.h
index de20661..77579d9 100755
--- a/src/server/ServerPlayer.h
+++ b/src/server/ServerPlayer.h
@@ -15,7 +15,7 @@ class ServerPlayer: public Player,
 {
     typedef Player super;
 public:
-    ServerPlayer(Minecraft* minecraft, Level* level);
+    ServerPlayer(Minecraft* minecraft, Level* level, bool proto);
 
 	~ServerPlayer();
 
@@ -43,6 +43,15 @@ public:
 	virtual void stopSleepInBed(bool forcefulWakeUp, bool updateLevelList, bool saveRespawnPoint);
 
 	void completeUsingItem();
+	
+	void setLastMoveTicks(int lastMoveTicks) { this->lastMoveTicks = lastMoveTicks; }
+	int getLastMoveTicks() { return lastMoveTicks; }
+
+	void setTicksInAir(int ticksInAir) { this->ticksInAir = ticksInAir; }
+	int getTicksInAir() { return ticksInAir; }
+
+	void setNewProto(bool proto) { isNewProto = proto; }
+	bool getProto() { return isNewProto; }
 private:
 	void nextContainerCounter();
 	void setContainerMenu( BaseContainerMenu* menu );
@@ -50,6 +59,11 @@ private:
 	Minecraft* _mc;
     int _prevHealth;
 	int _containerCounter;
+
+	int lastMoveTicks = 0;
+	int ticksInAir = 0;
+
+	bool isNewProto = false;
 };
 
 #endif /*ServerPlayer_H__*/