diff --git a/changelogs/3.9.md b/changelogs/3.9.md
index 1f8f68545..2f35ab897 100644
--- a/changelogs/3.9.md
+++ b/changelogs/3.9.md
@@ -44,3 +44,11 @@ Plugin developers should **only** update their required API to this version if y
 - Fixed `Entity->setFireTicks()` with a value of `0` setting the on-fire flag.
 - Silenced a debug message which appeared every time a player right-clicked a block.
 - Updated constants for `LevelSoundEventPacket`.
+
+# 3.9.2
+- Logger warnings for illegal player movements have been lowered to debug.
+- TNT explosions now start from the center instead of the base. This fixes unexpected results when TNT is lit on top of obsidian.
+- Fixed the `loadbefore` directive in `plugin.yml` sometimes being ignored.
+- Fixed `Item->setCustomName()` with an empty string leaving behind an empty tag.
+- Fixed incorrect positioning of bucket empty sound.
+- Fixed some incorrect tag parsing in `/give` involving quoted numbers.
diff --git a/composer.json b/composer.json
index a1ad3c122..a70304af5 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
       "ext-openssl": "*",
       "ext-pcre": "*",
       "ext-phar": "*",
-      "ext-pthreads": ">=3.1.7dev",
+      "ext-pthreads": "~3.2.0",
       "ext-reflection": "*",
       "ext-sockets": "*",
       "ext-spl": "*",
@@ -32,7 +32,7 @@
       "mdanter/ecc": "^0.5.0",
       "pocketmine/raklib": "dev-master",
       "pocketmine/spl": "dev-master",
-      "pocketmine/binaryutils": "^0.1.7",
+      "pocketmine/binaryutils": "^0.1.9",
       "pocketmine/nbt": "dev-master",
       "pocketmine/math": "dev-master",
       "pocketmine/snooze": "^0.1.0",
diff --git a/composer.lock b/composer.lock
index 606cd6003..c4713cfb7 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "7d9bec9f6226ca3ec19b06f6ed406718",
+    "content-hash": "3f4e9e3e4dfdd48390caf564839e8b46",
     "packages": [
         {
             "name": "adhocore/json-comment",
@@ -277,7 +277,7 @@
                 {
                     "name": "Berry Langerak",
                     "email": "berry@berryllium.nl",
-                    "role": "developer"
+                    "role": "Developer"
                 },
                 {
                     "name": "Rick van der Staaij",
@@ -295,16 +295,16 @@
         },
         {
             "name": "pocketmine/binaryutils",
-            "version": "0.1.8",
+            "version": "0.1.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/BinaryUtils.git",
-                "reference": "33f511715d22418c03368b49b45a6c25d6b33806"
+                "reference": "8b3b1160679398387cb896fd5d06018413437dfa"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/BinaryUtils/zipball/33f511715d22418c03368b49b45a6c25d6b33806",
-                "reference": "33f511715d22418c03368b49b45a6c25d6b33806",
+                "url": "https://api.github.com/repos/pmmp/BinaryUtils/zipball/8b3b1160679398387cb896fd5d06018413437dfa",
+                "reference": "8b3b1160679398387cb896fd5d06018413437dfa",
                 "shasum": ""
             },
             "require": {
@@ -322,10 +322,10 @@
             ],
             "description": "Classes and methods for conveniently handling binary data",
             "support": {
-                "source": "https://github.com/pmmp/BinaryUtils/tree/0.1.8",
+                "source": "https://github.com/pmmp/BinaryUtils/tree/0.1.9",
                 "issues": "https://github.com/pmmp/BinaryUtils/issues"
             },
-            "time": "2019-01-16T17:31:44+00:00"
+            "time": "2019-07-22T13:15:53+00:00"
         },
         {
             "name": "pocketmine/math",
@@ -372,19 +372,19 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/NBT.git",
-                "reference": "ddbc9909228c6fcedc13809a650ced2a0c432cf0"
+                "reference": "0976fcea814978c4ca7e53f5c19e459ae8e341e5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/NBT/zipball/ddbc9909228c6fcedc13809a650ced2a0c432cf0",
-                "reference": "ddbc9909228c6fcedc13809a650ced2a0c432cf0",
+                "url": "https://api.github.com/repos/pmmp/NBT/zipball/0976fcea814978c4ca7e53f5c19e459ae8e341e5",
+                "reference": "0976fcea814978c4ca7e53f5c19e459ae8e341e5",
                 "shasum": ""
             },
             "require": {
                 "ext-zlib": "*",
                 "php": ">=7.2.0",
                 "php-64bit": "*",
-                "pocketmine/binaryutils": "^0.1.7"
+                "pocketmine/binaryutils": "^0.1.9"
             },
             "type": "library",
             "autoload": {
@@ -405,7 +405,7 @@
                 "source": "https://github.com/pmmp/NBT/tree/master",
                 "issues": "https://github.com/pmmp/NBT/issues"
             },
-            "time": "2019-07-16T18:51:45+00:00"
+            "time": "2019-07-22T15:30:11+00:00"
         },
         {
             "name": "pocketmine/raklib",
@@ -413,22 +413,22 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/RakLib.git",
-                "reference": "b4799d6ecc0914b6d47ead8c70b50e53b043d828"
+                "reference": "df98f7e1a67629ee743939318810d3d2bafc5ba3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/RakLib/zipball/b4799d6ecc0914b6d47ead8c70b50e53b043d828",
-                "reference": "b4799d6ecc0914b6d47ead8c70b50e53b043d828",
+                "url": "https://api.github.com/repos/pmmp/RakLib/zipball/df98f7e1a67629ee743939318810d3d2bafc5ba3",
+                "reference": "df98f7e1a67629ee743939318810d3d2bafc5ba3",
                 "shasum": ""
             },
             "require": {
                 "ext-bcmath": "*",
-                "ext-pthreads": ">=3.1.7dev",
+                "ext-pthreads": "~3.2.0",
                 "ext-sockets": "*",
                 "php": ">=7.2.0",
                 "php-64bit": "*",
                 "php-ipv6": "*",
-                "pocketmine/binaryutils": "^0.1.0",
+                "pocketmine/binaryutils": "^0.1.9",
                 "pocketmine/snooze": "^0.1.0",
                 "pocketmine/spl": "dev-master"
             },
@@ -446,7 +446,7 @@
                 "source": "https://github.com/pmmp/RakLib/tree/master",
                 "issues": "https://github.com/pmmp/RakLib/issues"
             },
-            "time": "2019-05-13T17:14:39+00:00"
+            "time": "2019-07-22T15:27:51+00:00"
         },
         {
             "name": "pocketmine/snooze",
@@ -488,12 +488,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/SPL.git",
-                "reference": "7b80cbebd90a320b109154a7ff594688c1e0efcf"
+                "reference": "49a4b0187f2aa9daa1a9457aefa1f4cbcc5ead92"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/SPL/zipball/7b80cbebd90a320b109154a7ff594688c1e0efcf",
-                "reference": "7b80cbebd90a320b109154a7ff594688c1e0efcf",
+                "url": "https://api.github.com/repos/pmmp/SPL/zipball/49a4b0187f2aa9daa1a9457aefa1f4cbcc5ead92",
+                "reference": "49a4b0187f2aa9daa1a9457aefa1f4cbcc5ead92",
                 "shasum": ""
             },
             "type": "library",
@@ -509,14 +509,13 @@
             "support": {
                 "source": "https://github.com/pmmp/SPL/tree/master"
             },
-            "time": "2019-05-18T14:07:32+00:00"
+            "time": "2019-07-20T14:32:24+00:00"
         }
     ],
     "packages-dev": [],
     "aliases": [],
     "minimum-stability": "stable",
     "stability-flags": {
-        "ext-pthreads": 20,
         "pocketmine/raklib": 20,
         "pocketmine/spl": 20,
         "pocketmine/nbt": 20,
@@ -543,7 +542,7 @@
         "ext-openssl": "*",
         "ext-pcre": "*",
         "ext-phar": "*",
-        "ext-pthreads": ">=3.1.7dev",
+        "ext-pthreads": "~3.2.0",
         "ext-reflection": "*",
         "ext-sockets": "*",
         "ext-spl": "*",
diff --git a/src/pocketmine/PocketMine.php b/src/pocketmine/PocketMine.php
index e138e7bf6..ebdf6d941 100644
--- a/src/pocketmine/PocketMine.php
+++ b/src/pocketmine/PocketMine.php
@@ -108,8 +108,8 @@ namespace pocketmine {
 			if(substr_count($pthreads_version, ".") < 2){
 				$pthreads_version = "0.$pthreads_version";
 			}
-			if(version_compare($pthreads_version, "3.1.7dev") < 0){
-				$messages[] = "pthreads >= 3.1.7dev is required, while you have $pthreads_version.";
+			if(version_compare($pthreads_version, "3.2.0") < 0){
+				$messages[] = "pthreads >= 3.2.0 is required, while you have $pthreads_version.";
 			}
 		}
 
diff --git a/src/pocketmine/command/FormattedCommandAlias.php b/src/pocketmine/command/FormattedCommandAlias.php
index 2c6a335d2..87655da02 100644
--- a/src/pocketmine/command/FormattedCommandAlias.php
+++ b/src/pocketmine/command/FormattedCommandAlias.php
@@ -74,14 +74,14 @@ class FormattedCommandAlias extends Command{
 		$index = strpos($formatString, '$');
 		while($index !== false){
 			$start = $index;
-			if($index > 0 and $formatString{$start - 1} === "\\"){
+			if($index > 0 and $formatString[$start - 1] === "\\"){
 				$formatString = substr($formatString, 0, $start - 1) . substr($formatString, $start);
 				$index = strpos($formatString, '$', $index);
 				continue;
 			}
 
 			$required = false;
-			if($formatString{$index + 1} == '$'){
+			if($formatString[$index + 1] == '$'){
 				$required = true;
 
 				++$index;
@@ -91,7 +91,7 @@ class FormattedCommandAlias extends Command{
 
 			$argStart = $index;
 
-			while($index < strlen($formatString) and self::inRange(ord($formatString{$index}) - 48, 0, 9)){
+			while($index < strlen($formatString) and self::inRange(ord($formatString[$index]) - 48, 0, 9)){
 				++$index;
 			}
 
@@ -109,7 +109,7 @@ class FormattedCommandAlias extends Command{
 
 			$rest = false;
 
-			if($index < strlen($formatString) and $formatString{$index} === "-"){
+			if($index < strlen($formatString) and $formatString[$index] === "-"){
 				$rest = true;
 				++$index;
 			}
diff --git a/src/pocketmine/command/defaults/VanillaCommand.php b/src/pocketmine/command/defaults/VanillaCommand.php
index 8d26e5c8d..50c5313a1 100644
--- a/src/pocketmine/command/defaults/VanillaCommand.php
+++ b/src/pocketmine/command/defaults/VanillaCommand.php
@@ -65,7 +65,7 @@ abstract class VanillaCommand extends Command{
 	 * @return float
 	 */
 	protected function getRelativeDouble(float $original, CommandSender $sender, string $input, float $min = self::MIN_COORD, float $max = self::MAX_COORD) : float{
-		if($input{0} === "~"){
+		if($input[0] === "~"){
 			$value = $this->getDouble($sender, substr($input, 1));
 
 			return $original + $value;
diff --git a/src/pocketmine/crafting/ShapedRecipe.php b/src/pocketmine/crafting/ShapedRecipe.php
index a4802f11d..278f725f8 100644
--- a/src/pocketmine/crafting/ShapedRecipe.php
+++ b/src/pocketmine/crafting/ShapedRecipe.php
@@ -79,8 +79,8 @@ class ShapedRecipe implements CraftingRecipe{
 			}
 
 			for($x = 0; $x < $this->width; ++$x){
-				if($row{$x} !== ' ' and !isset($ingredients[$row{$x}])){
-					throw new \InvalidArgumentException("No item specified for symbol '" . $row{$x} . "'");
+				if($row[$x] !== ' ' and !isset($ingredients[$row[$x]])){
+					throw new \InvalidArgumentException("No item specified for symbol '" . $row[$x] . "'");
 				}
 			}
 		}
diff --git a/src/pocketmine/item/LiquidBucket.php b/src/pocketmine/item/LiquidBucket.php
index 8c466f157..0186c45b6 100644
--- a/src/pocketmine/item/LiquidBucket.php
+++ b/src/pocketmine/item/LiquidBucket.php
@@ -64,7 +64,7 @@ class LiquidBucket extends Item{
 		$ev->call();
 		if(!$ev->isCancelled()){
 			$player->getWorld()->setBlock($blockReplace, $resultBlock->getFlowingForm());
-			$player->getWorld()->addSound($blockClicked->add(0.5, 0.5, 0.5), $resultBlock->getBucketEmptySound());
+			$player->getWorld()->addSound($blockReplace->add(0.5, 0.5, 0.5), $resultBlock->getBucketEmptySound());
 
 			if($player->hasFiniteResources()){
 				$player->getInventory()->setItemInHand($ev->getItem());
diff --git a/src/pocketmine/lang/Language.php b/src/pocketmine/lang/Language.php
index 270b7183a..aa01b21b1 100644
--- a/src/pocketmine/lang/Language.php
+++ b/src/pocketmine/lang/Language.php
@@ -186,7 +186,7 @@ class Language{
 
 		$len = strlen($text);
 		for($i = 0; $i < $len; ++$i){
-			$c = $text{$i};
+			$c = $text[$i];
 			if($replaceString !== null){
 				$ord = ord($c);
 				if(
diff --git a/src/pocketmine/network/mcpe/protocol/UnknownPacket.php b/src/pocketmine/network/mcpe/protocol/UnknownPacket.php
index 129a29f84..490471dfe 100644
--- a/src/pocketmine/network/mcpe/protocol/UnknownPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/UnknownPacket.php
@@ -37,7 +37,7 @@ class UnknownPacket extends DataPacket{
 
 	public function pid() : int{
 		if(strlen($this->payload ?? "") > 0){
-			return ord($this->payload{0});
+			return ord($this->payload[0]);
 		}
 		return self::NETWORK_ID;
 	}
diff --git a/src/pocketmine/permission/BanList.php b/src/pocketmine/permission/BanList.php
index 40837ef05..f3e4ee63b 100644
--- a/src/pocketmine/permission/BanList.php
+++ b/src/pocketmine/permission/BanList.php
@@ -151,7 +151,7 @@ class BanList{
 		$fp = @fopen($this->file, "r");
 		if(is_resource($fp)){
 			while(($line = fgets($fp)) !== false){
-				if($line{0} !== "#"){
+				if($line[0] !== "#"){
 					try{
 						$entry = BanEntry::fromString($line);
 						if($entry !== null){
diff --git a/src/pocketmine/utils/Utils.php b/src/pocketmine/utils/Utils.php
index 14a94dd30..c9eef9d8c 100644
--- a/src/pocketmine/utils/Utils.php
+++ b/src/pocketmine/utils/Utils.php
@@ -351,7 +351,7 @@ class Utils{
 	public static function javaStringHash(string $string) : int{
 		$hash = 0;
 		for($i = 0, $len = strlen($string); $i < $len; $i++){
-			$ord = ord($string{$i});
+			$ord = ord($string[$i]);
 			if($ord & 0x80){
 				$ord -= 0x100;
 			}
diff --git a/src/pocketmine/world/format/Chunk.php b/src/pocketmine/world/format/Chunk.php
index 4973e9866..4d3df4e0a 100644
--- a/src/pocketmine/world/format/Chunk.php
+++ b/src/pocketmine/world/format/Chunk.php
@@ -385,7 +385,7 @@ class Chunk{
 	 * @return int 0-255
 	 */
 	public function getBiomeId(int $x, int $z) : int{
-		return ord($this->biomeIds{($z << 4) | $x});
+		return ord($this->biomeIds[($z << 4) | $x]);
 	}
 
 	/**
@@ -397,7 +397,7 @@ class Chunk{
 	 */
 	public function setBiomeId(int $x, int $z, int $biomeId) : void{
 		$this->hasChanged = true;
-		$this->biomeIds{($z << 4) | $x} = chr($biomeId & 0xff);
+		$this->biomeIds[($z << 4) | $x] = chr($biomeId & 0xff);
 	}
 
 	/**
diff --git a/src/pocketmine/world/format/LightArray.php b/src/pocketmine/world/format/LightArray.php
index dd3f1d7a0..1b10eb489 100644
--- a/src/pocketmine/world/format/LightArray.php
+++ b/src/pocketmine/world/format/LightArray.php
@@ -65,15 +65,15 @@ final class LightArray{
 	}
 
 	public function get(int $x, int $y, int $z) : int{
-		return (ord($this->data{($x << 7) | ($z << 3) | ($y >> 1)}) >> (($y & 1) << 2)) & 0xf;
+		return (ord($this->data[($x << 7) | ($z << 3) | ($y >> 1)]) >> (($y & 1) << 2)) & 0xf;
 	}
 
 	public function set(int $x, int $y, int $z, int $level) : void{
 		$i = ($x << 7) | ($z << 3) | ($y >> 1);
 
 		$shift = ($y & 1) << 2;
-		$byte = ord($this->data{$i});
-		$this->data{$i} = chr(($byte & ~(0xf << $shift)) | (($level & 0xf) << $shift));
+		$byte = ord($this->data[$i]);
+		$this->data[$i] = chr(($byte & ~(0xf << $shift)) | (($level & 0xf) << $shift));
 	}
 
 	public function collectGarbage() : void{
diff --git a/src/pocketmine/world/format/io/ChunkUtils.php b/src/pocketmine/world/format/io/ChunkUtils.php
index 27cd2b75e..b97dc2e73 100644
--- a/src/pocketmine/world/format/io/ChunkUtils.php
+++ b/src/pocketmine/world/format/io/ChunkUtils.php
@@ -38,7 +38,7 @@ class ChunkUtils{
 	public static function convertBiomeColors(array $array) : string{
 		$result = str_repeat("\x00", 256);
 		foreach($array as $i => $color){
-			$result{$i} = chr(($color >> 24) & 0xff);
+			$result[$i] = chr(($color >> 24) & 0xff);
 		}
 		return $result;
 	}