diff --git a/src/content_cao.cpp b/src/content_cao.cpp
index c34b47d51..b3b6fa5f2 100644
--- a/src/content_cao.cpp
+++ b/src/content_cao.cpp
@@ -300,8 +300,6 @@ void GenericCAO::initialize(const std::string &data)
 			m_is_visible = false;
 			player->setCAO(this);
 		}
-		if (m_client->getProtoVersion() < 33)
-			m_env->addPlayerName(m_name);
 	}
 }
 
@@ -337,9 +335,6 @@ void GenericCAO::processInitData(const std::string &data)
 
 GenericCAO::~GenericCAO()
 {
-	if (m_is_player && m_client->getProtoVersion() < 33) {
-		m_env->removePlayerName(m_name);
-	}
 	removeFromScene(true);
 }
 
diff --git a/src/itemdef.cpp b/src/itemdef.cpp
index 3d8116bf6..f7d366c8a 100644
--- a/src/itemdef.cpp
+++ b/src/itemdef.cpp
@@ -128,7 +128,8 @@ void ItemDefinition::reset()
 
 void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
 {
-	u8 version = (protocol_version >= 34) ? 4 : 3;
+	// protocol_version >= 36
+	u8 version = 5;
 	writeU8(os, version);
 	writeU8(os, type);
 	os << serializeString(name);
@@ -158,14 +159,12 @@ void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
 	os << serializeString(sound_place_failed.name);
 	writeF1000(os, sound_place_failed.gain);
 	os << serializeString(palette_image);
-	writeU32(os, color.color);
+	writeARGB8(os, color);
 
-	if (version >= 4) {
-		writeF1000(os, sound_place.pitch);
-		writeF1000(os, sound_place_failed.pitch);
-		os << serializeString(inventory_overlay);
-		os << serializeString(wield_overlay);
-	}
+	writeF1000(os, sound_place.pitch);
+	writeF1000(os, sound_place_failed.pitch);
+	os << serializeString(inventory_overlay);
+	os << serializeString(wield_overlay);
 }
 
 void ItemDefinition::deSerialize(std::istream &is)
@@ -175,8 +174,9 @@ void ItemDefinition::deSerialize(std::istream &is)
 
 	// Deserialize
 	int version = readU8(is);
-	if (version < 1 || version > 4)
+	if (version < 5)
 		throw SerializationError("unsupported ItemDefinition version");
+
 	type = (enum ItemType)readU8(is);
 	name = deSerializeString(is);
 	description = deSerializeString(is);
@@ -200,38 +200,27 @@ void ItemDefinition::deSerialize(std::istream &is)
 		int value = readS16(is);
 		groups[name] = value;
 	}
-	if(version == 1){
-		// We cant be sure that node_placement_prediction is send in version 1
-		try{
-			node_placement_prediction = deSerializeString(is);
-		}catch(SerializationError &e) {};
-		// Set the old default sound
-		sound_place.name = "default_place_node";
-		sound_place.gain = 0.5;
-	} else if(version >= 2) {
-		node_placement_prediction = deSerializeString(is);
-		//deserializeSimpleSoundSpec(sound_place, is);
-		sound_place.name = deSerializeString(is);
-		sound_place.gain = readF1000(is);
-	}
-	if(version >= 3) {
-		range = readF1000(is);
-	}
+
+	node_placement_prediction = deSerializeString(is);
+	//deserializeSimpleSoundSpec(sound_place, is);
+	sound_place.name = deSerializeString(is);
+	sound_place.gain = readF1000(is);
+	range = readF1000(is);
+
+	sound_place_failed.name = deSerializeString(is);
+	sound_place_failed.gain = readF1000(is);
+	palette_image = deSerializeString(is);
+	color = readARGB8(is);
+
+	sound_place.pitch = readF1000(is);
+	sound_place_failed.pitch = readF1000(is);
+	inventory_overlay = deSerializeString(is);
+	wield_overlay = deSerializeString(is);
+
 	// If you add anything here, insert it primarily inside the try-catch
 	// block to not need to increase the version.
-	try {
-		sound_place_failed.name = deSerializeString(is);
-		sound_place_failed.gain = readF1000(is);
-		palette_image = deSerializeString(is);
-		color.set(readU32(is));
-
-		if (version >= 4) {
-			sound_place.pitch = readF1000(is);
-			sound_place_failed.pitch = readF1000(is);
-			inventory_overlay = deSerializeString(is);
-			wield_overlay = deSerializeString(is);
-		}
-	} catch(SerializationError &e) {};
+	//try {
+	//} catch(SerializationError &e) {};
 }
 
 /*
diff --git a/src/network/networkprotocol.h b/src/network/networkprotocol.h
index c90e9456a..7eefaccaa 100644
--- a/src/network/networkprotocol.h
+++ b/src/network/networkprotocol.h
@@ -176,18 +176,20 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 			position
 		Add settable player stepheight using existing object property.
 			Breaks compatibility with older clients.
+	PROTOCOL VERSION 36:
+		Backwards compatibility drop
 */
 
-#define LATEST_PROTOCOL_VERSION 35
+#define LATEST_PROTOCOL_VERSION 36
 
 // Server's supported network protocol range
-#define SERVER_PROTOCOL_VERSION_MIN 24
+#define SERVER_PROTOCOL_VERSION_MIN 36
 #define SERVER_PROTOCOL_VERSION_MAX LATEST_PROTOCOL_VERSION
 
 // Client's supported network protocol range
 // The minimal version depends on whether
 // send_pre_v25_init is enabled or not
-#define CLIENT_PROTOCOL_VERSION_MIN 25
+#define CLIENT_PROTOCOL_VERSION_MIN 36
 #define CLIENT_PROTOCOL_VERSION_MIN_LEGACY 24
 #define CLIENT_PROTOCOL_VERSION_MAX LATEST_PROTOCOL_VERSION
 
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index dd3ceb021..89e9b4d46 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -63,19 +63,14 @@ void NodeBox::reset()
 
 void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
 {
-	// Protocol >= 21
-	int version = 2;
-	if (protocol_version >= 27)
-		version = 3;
+	// Protocol >= 36
+	int version = 4;
 	writeU8(os, version);
 
 	switch (type) {
 	case NODEBOX_LEVELED:
 	case NODEBOX_FIXED:
-		if (version == 1)
-			writeU8(os, NODEBOX_FIXED);
-		else
-			writeU8(os, type);
+		writeU8(os, type);
 
 		writeU16(os, fixed.size());
 		for (const aabb3f &nodebox : fixed) {
@@ -94,16 +89,7 @@ void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
 		writeV3F1000(os, wall_side.MaxEdge);
 		break;
 	case NODEBOX_CONNECTED:
-		if (version <= 2) {
-			// send old clients nodes that can't be walked through
-			// to prevent abuse
-			writeU8(os, NODEBOX_FIXED);
-
-			writeU16(os, 1);
-			writeV3F1000(os, v3f(-BS/2, -BS/2, -BS/2));
-			writeV3F1000(os, v3f(BS/2, BS/2, BS/2));
-		} else {
-			writeU8(os, type);
+		writeU8(os, type);
 
 #define WRITEBOX(box) \
 		writeU16(os, (box).size()); \
@@ -112,14 +98,13 @@ void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
 			writeV3F1000(os, i.MaxEdge); \
 		};
 
-			WRITEBOX(fixed);
-			WRITEBOX(connect_top);
-			WRITEBOX(connect_bottom);
-			WRITEBOX(connect_front);
-			WRITEBOX(connect_left);
-			WRITEBOX(connect_back);
-			WRITEBOX(connect_right);
-		}
+		WRITEBOX(fixed);
+		WRITEBOX(connect_top);
+		WRITEBOX(connect_bottom);
+		WRITEBOX(connect_front);
+		WRITEBOX(connect_left);
+		WRITEBOX(connect_back);
+		WRITEBOX(connect_right);
 		break;
 	default:
 		writeU8(os, type);
@@ -130,7 +115,7 @@ void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
 void NodeBox::deSerialize(std::istream &is)
 {
 	int version = readU8(is);
-	if (version < 1 || version > 3)
+	if (version < 4)
 		throw SerializationError("unsupported NodeBox version");
 
 	reset();
@@ -185,58 +170,38 @@ void NodeBox::deSerialize(std::istream &is)
 
 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 {
-	if (protocol_version >= 30)
-		writeU8(os, 4);
-	else if (protocol_version >= 29)
-		writeU8(os, 3);
-	else if (protocol_version >= 26)
-		writeU8(os, 2);
-	else
-		writeU8(os, 1);
+	// protocol_version >= 36
+	u8 version = 5;
+	writeU8(os, version);
 
 	os << serializeString(name);
-	animation.serialize(os, protocol_version);
+	animation.serialize(os, version);
 	writeU8(os, backface_culling);
-	if (protocol_version >= 26) {
-		writeU8(os, tileable_horizontal);
-		writeU8(os, tileable_vertical);
-	}
-	if (protocol_version >= 30) {
-		writeU8(os, has_color);
-		if (has_color) {
-			writeU8(os, color.getRed());
-			writeU8(os, color.getGreen());
-			writeU8(os, color.getBlue());
-		}
+	writeU8(os, tileable_horizontal);
+	writeU8(os, tileable_vertical);
+	writeU8(os, has_color);
+	if (has_color) {
+		writeU8(os, color.getRed());
+		writeU8(os, color.getGreen());
+		writeU8(os, color.getBlue());
 	}
 }
 
-void TileDef::deSerialize(std::istream &is, const u8 contenfeatures_version, const NodeDrawType drawtype)
+void TileDef::deSerialize(std::istream &is, u8 contentfeatures_version,
+	cNodeDrawType drawtype)
 {
 	int version = readU8(is);
 	name = deSerializeString(is);
-	animation.deSerialize(is, version >= 3 ? 29 : 26);
-	if (version >= 1)
-		backface_culling = readU8(is);
-	if (version >= 2) {
-		tileable_horizontal = readU8(is);
-		tileable_vertical = readU8(is);
+	animation.deSerialize(is, version);
+	backface_culling = readU8(is);
+	tileable_horizontal = readU8(is);
+	tileable_vertical = readU8(is);
+	has_color = readU8(is);
+	if (has_color) {
+		color.setRed(readU8(is));
+		color.setGreen(readU8(is));
+		color.setBlue(readU8(is));
 	}
-	if (version >= 4) {
-		has_color = readU8(is);
-		if (has_color) {
-			color.setRed(readU8(is));
-			color.setGreen(readU8(is));
-			color.setBlue(readU8(is));
-		}
-	}
-
-	if ((contenfeatures_version < 8) &&
-		((drawtype == NDT_MESH) ||
-		 (drawtype == NDT_FIRELIKE) ||
-		 (drawtype == NDT_LIQUID) ||
-		 (drawtype == NDT_PLANTLIKE)))
-		backface_culling = false;
 }
 
 
@@ -249,17 +214,14 @@ static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 {
 	os<<serializeString(ss.name);
 	writeF1000(os, ss.gain);
-
-	if (version >= 11)
-		writeF1000(os, ss.pitch);
+	writeF1000(os, ss.pitch);
 }
-static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is, u8 version)
+static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss,
+		std::istream &is, u8 version)
 {
 	ss.name = deSerializeString(is);
 	ss.gain = readF1000(is);
-
-	if (version >= 11)
-		ss.pitch = readF1000(is);
+	ss.pitch = readF1000(is);
 }
 
 void TextureSettings::readSettings()
@@ -377,13 +339,8 @@ void ContentFeatures::reset()
 
 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 {
-	if (protocol_version < 31) {
-		serializeOld(os, protocol_version);
-		return;
-	}
-
-	// version
-	u8 version = (protocol_version >= 34) ? 11 : 10;
+	// protocol_version >= 36
+	u8 version = 12;
 	writeU8(os, version);
 
 	// general
@@ -486,14 +443,8 @@ void ContentFeatures::deSerialize(std::istream &is)
 {
 	// version detection
 	int version = readU8(is);
-	if (version < 9) {
-		deSerializeOld(is, version);
-		return;
-	}
-
-	if (version > 11) {
+	if (version < 12)
 		throw SerializationError("unsupported ContentFeatures version");
-	}
 
 	// general
 	name = deSerializeString(is);
@@ -515,9 +466,8 @@ void ContentFeatures::deSerialize(std::istream &is)
 		throw SerializationError("unsupported tile count");
 	for (TileDef &td : tiledef)
 		td.deSerialize(is, version, drawtype);
-	if (version >= 10)
-		for (TileDef &td : tiledef_overlay)
-			td.deSerialize(is, version, drawtype);
+	for (TileDef &td : tiledef_overlay)
+		td.deSerialize(is, version, drawtype);
 	if (readU8(is) != CF_SPECIAL_COUNT)
 		throw SerializationError("unsupported CF_SPECIAL_COUNT");
 	for (TileDef &td : tiledef_special)
@@ -1532,282 +1482,6 @@ IWritableNodeDefManager *createNodeDefManager()
 	return new CNodeDefManager();
 }
 
-
-//// Serialization of old ContentFeatures formats
-void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
-{
-	u8 compatible_param_type_2 = param_type_2;
-	if ((protocol_version < 28)
-			&& (compatible_param_type_2 == CPT2_MESHOPTIONS))
-		compatible_param_type_2 = CPT2_NONE;
-	else if (protocol_version < 30) {
-		if (compatible_param_type_2 == CPT2_COLOR)
-			compatible_param_type_2 = CPT2_NONE;
-		else if (compatible_param_type_2 == CPT2_COLORED_FACEDIR)
-			compatible_param_type_2 = CPT2_FACEDIR;
-		else if (compatible_param_type_2 == CPT2_COLORED_WALLMOUNTED)
-			compatible_param_type_2 = CPT2_WALLMOUNTED;
-	}
-
-	float compatible_visual_scale = visual_scale;
-	if (protocol_version < 30 && drawtype == NDT_PLANTLIKE)
-		compatible_visual_scale = sqrt(visual_scale);
-
-	TileDef compatible_tiles[6];
-	for (u8 i = 0; i < 6; i++) {
-		compatible_tiles[i] = tiledef[i];
-		if (!tiledef_overlay[i].name.empty()) {
-			std::stringstream s;
-			s << "(" << tiledef[i].name << ")^(" << tiledef_overlay[i].name
-				<< ")";
-			compatible_tiles[i].name = s.str();
-		}
-	}
-
-	// Protocol >= 24
-	if (protocol_version < 31) {
-		writeU8(os, protocol_version < 27 ? 7 : 8);
-
-		os << serializeString(name);
-		writeU16(os, groups.size());
-		for (const auto &group : groups) {
-			os << serializeString(group.first);
-			writeS16(os, group.second);
-		}
-		writeU8(os, drawtype);
-		writeF1000(os, compatible_visual_scale);
-		writeU8(os, 6);
-		for (const auto &compatible_tile : compatible_tiles)
-			compatible_tile.serialize(os, protocol_version);
-		writeU8(os, CF_SPECIAL_COUNT);
-		for (const TileDef &i : tiledef_special)
-			i.serialize(os, protocol_version);
-		writeU8(os, alpha);
-		writeU8(os, post_effect_color.getAlpha());
-		writeU8(os, post_effect_color.getRed());
-		writeU8(os, post_effect_color.getGreen());
-		writeU8(os, post_effect_color.getBlue());
-		writeU8(os, param_type);
-		writeU8(os, compatible_param_type_2);
-		writeU8(os, is_ground_content);
-		writeU8(os, light_propagates);
-		writeU8(os, sunlight_propagates);
-		writeU8(os, walkable);
-		writeU8(os, pointable);
-		writeU8(os, diggable);
-		writeU8(os, climbable);
-		writeU8(os, buildable_to);
-		os << serializeString(""); // legacy: used to be metadata_name
-		writeU8(os, liquid_type);
-		os << serializeString(liquid_alternative_flowing);
-		os << serializeString(liquid_alternative_source);
-		writeU8(os, liquid_viscosity);
-		writeU8(os, liquid_renewable);
-		writeU8(os, light_source);
-		writeU32(os, damage_per_second);
-		node_box.serialize(os, protocol_version);
-		selection_box.serialize(os, protocol_version);
-		writeU8(os, legacy_facedir_simple);
-		writeU8(os, legacy_wallmounted);
-		serializeSimpleSoundSpec(sound_footstep, os, 10);
-		serializeSimpleSoundSpec(sound_dig, os, 10);
-		serializeSimpleSoundSpec(sound_dug, os, 10);
-		writeU8(os, rightclickable);
-		writeU8(os, drowning);
-		writeU8(os, leveled);
-		writeU8(os, liquid_range);
-		writeU8(os, waving);
-		os << serializeString(mesh);
-		collision_box.serialize(os, protocol_version);
-		writeU8(os, floodable);
-		writeU16(os, connects_to_ids.size());
-		for (content_t connects_to_id : connects_to_ids)
-			writeU16(os, connects_to_id);
-		writeU8(os, connect_sides);
-	} else {
-		throw SerializationError("ContentFeatures::serialize(): "
-			"Unsupported version requested");
-	}
-}
-
-void ContentFeatures::deSerializeOld(std::istream &is, int version)
-{
-	if (version == 5) // In PROTOCOL_VERSION 13
-	{
-		name = deSerializeString(is);
-		groups.clear();
-		u32 groups_size = readU16(is);
-		for(u32 i=0; i<groups_size; i++){
-			std::string name = deSerializeString(is);
-			int value = readS16(is);
-			groups[name] = value;
-		}
-		drawtype = (enum NodeDrawType)readU8(is);
-
-		visual_scale = readF1000(is);
-		if (readU8(is) != 6)
-			throw SerializationError("unsupported tile count");
-		for (TileDef &i : tiledef)
-			i.deSerialize(is, version, drawtype);
-		if (readU8(is) != CF_SPECIAL_COUNT)
-			throw SerializationError("unsupported CF_SPECIAL_COUNT");
-		for (TileDef &i : tiledef_special)
-			i.deSerialize(is, version, drawtype);
-		alpha = readU8(is);
-		post_effect_color.setAlpha(readU8(is));
-		post_effect_color.setRed(readU8(is));
-		post_effect_color.setGreen(readU8(is));
-		post_effect_color.setBlue(readU8(is));
-		param_type = (enum ContentParamType)readU8(is);
-		param_type_2 = (enum ContentParamType2)readU8(is);
-		is_ground_content = readU8(is);
-		light_propagates = readU8(is);
-		sunlight_propagates = readU8(is);
-		walkable = readU8(is);
-		pointable = readU8(is);
-		diggable = readU8(is);
-		climbable = readU8(is);
-		buildable_to = readU8(is);
-		deSerializeString(is); // legacy: used to be metadata_name
-		liquid_type = (enum LiquidType)readU8(is);
-		liquid_alternative_flowing = deSerializeString(is);
-		liquid_alternative_source = deSerializeString(is);
-		liquid_viscosity = readU8(is);
-		light_source = readU8(is);
-		light_source = MYMIN(light_source, LIGHT_MAX);
-		damage_per_second = readU32(is);
-		node_box.deSerialize(is);
-		selection_box.deSerialize(is);
-		legacy_facedir_simple = readU8(is);
-		legacy_wallmounted = readU8(is);
-		deSerializeSimpleSoundSpec(sound_footstep, is, version);
-		deSerializeSimpleSoundSpec(sound_dig, is, version);
-		deSerializeSimpleSoundSpec(sound_dug, is, version);
-	} else if (version == 6) {
-		name = deSerializeString(is);
-		groups.clear();
-		u32 groups_size = readU16(is);
-		for (u32 i = 0; i < groups_size; i++) {
-			std::string name = deSerializeString(is);
-			int	value = readS16(is);
-			groups[name] = value;
-		}
-		drawtype = (enum NodeDrawType)readU8(is);
-		visual_scale = readF1000(is);
-		if (readU8(is) != 6)
-			throw SerializationError("unsupported tile count");
-		for (TileDef &i : tiledef)
-			i.deSerialize(is, version, drawtype);
-		// CF_SPECIAL_COUNT in version 6 = 2
-		if (readU8(is) != 2)
-			throw SerializationError("unsupported CF_SPECIAL_COUNT");
-		for (u32 i = 0; i < 2; i++)
-			tiledef_special[i].deSerialize(is, version, drawtype);
-		alpha = readU8(is);
-		post_effect_color.setAlpha(readU8(is));
-		post_effect_color.setRed(readU8(is));
-		post_effect_color.setGreen(readU8(is));
-		post_effect_color.setBlue(readU8(is));
-		param_type = (enum ContentParamType)readU8(is);
-		param_type_2 = (enum ContentParamType2)readU8(is);
-		is_ground_content = readU8(is);
-		light_propagates = readU8(is);
-		sunlight_propagates = readU8(is);
-		walkable = readU8(is);
-		pointable = readU8(is);
-		diggable = readU8(is);
-		climbable = readU8(is);
-		buildable_to = readU8(is);
-		deSerializeString(is); // legacy: used to be metadata_name
-		liquid_type = (enum LiquidType)readU8(is);
-		liquid_alternative_flowing = deSerializeString(is);
-		liquid_alternative_source = deSerializeString(is);
-		liquid_viscosity = readU8(is);
-		liquid_renewable = readU8(is);
-		light_source = readU8(is);
-		damage_per_second = readU32(is);
-		node_box.deSerialize(is);
-		selection_box.deSerialize(is);
-		legacy_facedir_simple = readU8(is);
-		legacy_wallmounted = readU8(is);
-		deSerializeSimpleSoundSpec(sound_footstep, is, version);
-		deSerializeSimpleSoundSpec(sound_dig, is, version);
-		deSerializeSimpleSoundSpec(sound_dug, is, version);
-		rightclickable = readU8(is);
-		drowning = readU8(is);
-		leveled = readU8(is);
-		liquid_range = readU8(is);
-	} else if (version == 7 || version == 8){
-		name = deSerializeString(is);
-		groups.clear();
-		u32 groups_size = readU16(is);
-		for (u32 i = 0; i < groups_size; i++) {
-			std::string name = deSerializeString(is);
-			int value = readS16(is);
-			groups[name] = value;
-		}
-		drawtype = (enum NodeDrawType) readU8(is);
-
-		visual_scale = readF1000(is);
-		if (readU8(is) != 6)
-			throw SerializationError("unsupported tile count");
-		for (TileDef &i : tiledef)
-			i.deSerialize(is, version, drawtype);
-		if (readU8(is) != CF_SPECIAL_COUNT)
-			throw SerializationError("unsupported CF_SPECIAL_COUNT");
-		for (TileDef &i : tiledef_special)
-			i.deSerialize(is, version, drawtype);
-		alpha = readU8(is);
-		post_effect_color.setAlpha(readU8(is));
-		post_effect_color.setRed(readU8(is));
-		post_effect_color.setGreen(readU8(is));
-		post_effect_color.setBlue(readU8(is));
-		param_type = (enum ContentParamType) readU8(is);
-		param_type_2 = (enum ContentParamType2) readU8(is);
-		is_ground_content = readU8(is);
-		light_propagates = readU8(is);
-		sunlight_propagates = readU8(is);
-		walkable = readU8(is);
-		pointable = readU8(is);
-		diggable = readU8(is);
-		climbable = readU8(is);
-		buildable_to = readU8(is);
-		deSerializeString(is); // legacy: used to be metadata_name
-		liquid_type = (enum LiquidType) readU8(is);
-		liquid_alternative_flowing = deSerializeString(is);
-		liquid_alternative_source = deSerializeString(is);
-		liquid_viscosity = readU8(is);
-		liquid_renewable = readU8(is);
-		light_source = readU8(is);
-		light_source = MYMIN(light_source, LIGHT_MAX);
-		damage_per_second = readU32(is);
-		node_box.deSerialize(is);
-		selection_box.deSerialize(is);
-		legacy_facedir_simple = readU8(is);
-		legacy_wallmounted = readU8(is);
-		deSerializeSimpleSoundSpec(sound_footstep, is, version);
-		deSerializeSimpleSoundSpec(sound_dig, is, version);
-		deSerializeSimpleSoundSpec(sound_dug, is, version);
-		rightclickable = readU8(is);
-		drowning = readU8(is);
-		leveled = readU8(is);
-		liquid_range = readU8(is);
-		waving = readU8(is);
-		try {
-			mesh = deSerializeString(is);
-			collision_box.deSerialize(is);
-			floodable = readU8(is);
-			u16 connects_to_size = readU16(is);
-			connects_to_ids.clear();
-			for (u16 i = 0; i < connects_to_size; i++)
-				connects_to_ids.insert(readU16(is));
-			connect_sides = readU8(is);
-		} catch (SerializationError &e) {};
-	}else{
-		throw SerializationError("unsupported ContentFeatures version");
-	}
-}
-
 inline void CNodeDefManager::setNodeRegistrationStatus(bool completed)
 {
 	m_node_registration_complete = completed;
diff --git a/src/nodedef.h b/src/nodedef.h
index 22ed2f127..1392e51d4 100644
--- a/src/nodedef.h
+++ b/src/nodedef.h
@@ -224,7 +224,8 @@ struct TileDef
 	}
 
 	void serialize(std::ostream &os, u16 protocol_version) const;
-	void deSerialize(std::istream &is, const u8 contentfeatures_version, const NodeDrawType drawtype);
+	void deSerialize(std::istream &is, u8 contentfeatures_version,
+		NodeDrawType drawtype);
 };
 
 #define CF_SPECIAL_COUNT 6
diff --git a/src/object_properties.cpp b/src/object_properties.cpp
index c9e134710..cf23e3433 100644
--- a/src/object_properties.cpp
+++ b/src/object_properties.cpp
@@ -68,13 +68,16 @@ std::string ObjectProperties::dump()
 
 void ObjectProperties::serialize(std::ostream &os) const
 {
-	writeU8(os, 1); // version
+	writeU8(os, 2); // version, protocol_version >= 36
 	writeS16(os, hp_max);
 	writeU8(os, physical);
 	writeF1000(os, weight);
 	writeV3F1000(os, collisionbox.MinEdge);
 	writeV3F1000(os, collisionbox.MaxEdge);
-	os<<serializeString(visual);
+	writeV3F1000(os, selectionbox.MinEdge);
+	writeV3F1000(os, selectionbox.MaxEdge);
+	writeU8(os, pointable);
+	os << serializeString(visual);
 	writeV2F1000(os, visual_size);
 	writeU16(os, textures.size());
 	for (const std::string &texture : textures) {
@@ -86,7 +89,7 @@ void ObjectProperties::serialize(std::ostream &os) const
 	writeU8(os, makes_footstep_sound);
 	writeF1000(os, automatic_rotate);
 	// Added in protocol version 14
-	os<<serializeString(mesh);
+	os << serializeString(mesh);
 	writeU16(os, colors.size());
 	for (video::SColor color : colors) {
 		writeARGB8(os, color);
@@ -101,9 +104,6 @@ void ObjectProperties::serialize(std::ostream &os) const
 	writeF1000(os, automatic_face_movement_max_rotation_per_sec);
 	os << serializeString(infotext);
 	os << serializeString(wield_item);
-	writeV3F1000(os, selectionbox.MinEdge);
-	writeV3F1000(os, selectionbox.MaxEdge);
-	writeU8(os, pointable);
 
 	// Add stuff only at the bottom.
 	// Never remove anything, because we don't want new versions of this
@@ -112,48 +112,42 @@ void ObjectProperties::serialize(std::ostream &os) const
 void ObjectProperties::deSerialize(std::istream &is)
 {
 	int version = readU8(is);
-	if(version == 1)
-	{
-		try{
-			hp_max = readS16(is);
-			physical = readU8(is);
-			weight = readF1000(is);
-			collisionbox.MinEdge = readV3F1000(is);
-			collisionbox.MaxEdge = readV3F1000(is);
-			visual = deSerializeString(is);
-			visual_size = readV2F1000(is);
-			textures.clear();
-			u32 texture_count = readU16(is);
-			for(u32 i=0; i<texture_count; i++){
-				textures.push_back(deSerializeString(is));
-			}
-			spritediv = readV2S16(is);
-			initial_sprite_basepos = readV2S16(is);
-			is_visible = readU8(is);
-			makes_footstep_sound = readU8(is);
-			automatic_rotate = readF1000(is);
-			mesh = deSerializeString(is);
-			u32 color_count = readU16(is);
-			for(u32 i=0; i<color_count; i++){
-				colors.push_back(readARGB8(is));
-			}
-			collideWithObjects = readU8(is);
-			stepheight = readF1000(is);
-			automatic_face_movement_dir = readU8(is);
-			automatic_face_movement_dir_offset = readF1000(is);
-			backface_culling = readU8(is);
-			nametag = deSerializeString(is);
-			nametag_color = readARGB8(is);
-			automatic_face_movement_max_rotation_per_sec = readF1000(is);
-			infotext = deSerializeString(is);
-			wield_item = deSerializeString(is);
-			selectionbox.MinEdge = readV3F1000(is);
-			selectionbox.MaxEdge = readV3F1000(is);
-			pointable = readU8(is);
-		}catch(SerializationError &e){}
-	}
-	else
-	{
+	if (version != 2)
 		throw SerializationError("unsupported ObjectProperties version");
+
+	hp_max = readS16(is);
+	physical = readU8(is);
+	weight = readF1000(is);
+	collisionbox.MinEdge = readV3F1000(is);
+	collisionbox.MaxEdge = readV3F1000(is);
+	selectionbox.MinEdge = readV3F1000(is);
+	selectionbox.MaxEdge = readV3F1000(is);
+	pointable = readU8(is);
+	visual = deSerializeString(is);
+	visual_size = readV2F1000(is);
+	textures.clear();
+	u32 texture_count = readU16(is);
+	for (u32 i = 0; i < texture_count; i++){
+		textures.push_back(deSerializeString(is));
 	}
+	spritediv = readV2S16(is);
+	initial_sprite_basepos = readV2S16(is);
+	is_visible = readU8(is);
+	makes_footstep_sound = readU8(is);
+	automatic_rotate = readF1000(is);
+	mesh = deSerializeString(is);
+	u32 color_count = readU16(is);
+	for (u32 i = 0; i < color_count; i++){
+		colors.push_back(readARGB8(is));
+	}
+	collideWithObjects = readU8(is);
+	stepheight = readF1000(is);
+	automatic_face_movement_dir = readU8(is);
+	automatic_face_movement_dir_offset = readF1000(is);
+	backface_culling = readU8(is);
+	nametag = deSerializeString(is);
+	nametag_color = readARGB8(is);
+	automatic_face_movement_max_rotation_per_sec = readF1000(is);
+	infotext = deSerializeString(is);
+	wield_item = deSerializeString(is);
 }
diff --git a/src/tileanimation.cpp b/src/tileanimation.cpp
index 67d27d396..eaef7f8cb 100644
--- a/src/tileanimation.cpp
+++ b/src/tileanimation.cpp
@@ -19,23 +19,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "tileanimation.h"
 #include "util/serialize.h"
 
-void TileAnimationParams::serialize(std::ostream &os, u16 protocol_version) const
+void TileAnimationParams::serialize(std::ostream &os, u8 tiledef_version) const
 {
-	if (protocol_version < 29) {
-		if (type == TAT_VERTICAL_FRAMES) {
-			writeU8(os, type);
-			writeU16(os, vertical_frames.aspect_w);
-			writeU16(os, vertical_frames.aspect_h);
-			writeF1000(os, vertical_frames.length);
-		} else {
-			writeU8(os, TAT_NONE);
-			writeU16(os, 1);
-			writeU16(os, 1);
-			writeF1000(os, 1.0);
-		}
-		return;
-	}
-
 	writeU8(os, type);
 	if (type == TAT_VERTICAL_FRAMES) {
 		writeU16(os, vertical_frames.aspect_w);
@@ -48,15 +33,9 @@ void TileAnimationParams::serialize(std::ostream &os, u16 protocol_version) cons
 	}
 }
 
-void TileAnimationParams::deSerialize(std::istream &is, u16 protocol_version)
+void TileAnimationParams::deSerialize(std::istream &is, u8 tiledef_version)
 {
 	type = (TileAnimationType) readU8(is);
-	if (protocol_version < 29) {
-		vertical_frames.aspect_w = readU16(is);
-		vertical_frames.aspect_h = readU16(is);
-		vertical_frames.length = readF1000(is);
-		return;
-	}
 
 	if (type == TAT_VERTICAL_FRAMES) {
 		vertical_frames.aspect_w = readU16(is);
diff --git a/src/tileanimation.h b/src/tileanimation.h
index 0449de0b8..7e3285ed7 100644
--- a/src/tileanimation.h
+++ b/src/tileanimation.h
@@ -50,8 +50,8 @@ struct TileAnimationParams
 		} sheet_2d;
 	};
 
-	void serialize(std::ostream &os, u16 protocol_version) const;
-	void deSerialize(std::istream &is, u16 protocol_version);
+	void serialize(std::ostream &os, u8 tiledef_version) const;
+	void deSerialize(std::istream &is, u8 tiledef_version);
 	void determineParams(v2u32 texture_size, int *frame_count, int *frame_length_ms,
 			v2u32 *frame_size) const;
 	void getTextureModifer(std::ostream &os, v2u32 texture_size, int frame) const;
diff --git a/src/tool.cpp b/src/tool.cpp
index 38508c5fe..839b1e387 100644
--- a/src/tool.cpp
+++ b/src/tool.cpp
@@ -27,7 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 void ToolCapabilities::serialize(std::ostream &os, u16 protocol_version) const
 {
-	writeU8(os, 2); // version (protocol >= 18)
+	writeU8(os, 3); // protocol_version >= 36
 	writeF1000(os, full_punch_interval);
 	writeS16(os, max_drop_level);
 	writeU32(os, groupcaps.size());
@@ -55,33 +55,32 @@ void ToolCapabilities::serialize(std::ostream &os, u16 protocol_version) const
 void ToolCapabilities::deSerialize(std::istream &is)
 {
 	int version = readU8(is);
-	if(version != 1 && version != 2) throw SerializationError(
-			"unsupported ToolCapabilities version");
+	if (version < 3)
+		throw SerializationError("unsupported ToolCapabilities version");
+
 	full_punch_interval = readF1000(is);
 	max_drop_level = readS16(is);
 	groupcaps.clear();
 	u32 groupcaps_size = readU32(is);
-	for(u32 i=0; i<groupcaps_size; i++){
+	for (u32 i = 0; i < groupcaps_size; i++) {
 		std::string name = deSerializeString(is);
 		ToolGroupCap cap;
 		cap.uses = readS16(is);
 		cap.maxlevel = readS16(is);
 		u32 times_size = readU32(is);
-		for(u32 i=0; i<times_size; i++){
+		for(u32 i = 0; i < times_size; i++) {
 			int level = readS16(is);
 			float time = readF1000(is);
 			cap.times[level] = time;
 		}
 		groupcaps[name] = cap;
 	}
-	if(version == 2)
-	{
-		u32 damage_groups_size = readU32(is);
-		for(u32 i=0; i<damage_groups_size; i++){
-			std::string name = deSerializeString(is);
-			s16 rating = readS16(is);
-			damageGroups[name] = rating;
-		}
+
+	u32 damage_groups_size = readU32(is);
+	for (u32 i = 0; i < damage_groups_size; i++) {
+		std::string name = deSerializeString(is);
+		s16 rating = readS16(is);
+		damageGroups[name] = rating;
 	}
 }