diff --git a/BUILDING.md b/BUILDING.md
index 369e57e63c..4a2b132b05 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -8,7 +8,7 @@
 ## Custom PHP binaries
 Because PocketMine-MP requires several non-standard PHP extensions and configuration, PMMP provides scripts to build custom binaries for running PocketMine-MP, as well as prebuilt binaries.
 
-- [Prebuilt binaries](https://jenkins.pmmp.io/job/PHP-7.3-Aggregate)
+- [Prebuilt binaries](https://jenkins.pmmp.io/job/PHP-7.4-Aggregate)
 - [Compile scripts](https://github.com/pmmp/php-build-scripts) are provided as a submodule in the path `build/php`
 
 If you use a custom binary, you'll need to replace `composer` usages in this guide with `path/to/your/php path/to/your/composer.phar`.
diff --git a/README.md b/README.md
index bff7e31be2..3d1787e384 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,7 @@
 
 ## For developers
  * [Building and running from source](BUILDING.md)
+ * [Developer documentation](https://devdoc.pmmp.io) - General documentation for PocketMine-MP plugin developers
  * [Latest API documentation](https://jenkins.pmmp.io/job/PocketMine-MP-doc/doxygen/) - Doxygen documentation generated from development
  * [DevTools](https://github.com/pmmp/DevTools/) - Development tools plugin for creating plugins
  * [ExamplePlugin](https://github.com/pmmp/ExamplePlugin/) - Example plugin demonstrating some basic API features
diff --git a/composer.json b/composer.json
index 2f2e35a1ed..893b7c364c 100644
--- a/composer.json
+++ b/composer.json
@@ -50,7 +50,7 @@
       "respect/validation": "^2.0"
    },
    "require-dev": {
-      "phpstan/phpstan": "0.12.81",
+      "phpstan/phpstan": "0.12.82",
       "phpstan/phpstan-phpunit": "^0.12.6",
       "phpstan/phpstan-strict-rules": "^0.12.2",
       "phpunit/phpunit": "^9.2"
diff --git a/doxygen/index.md b/doxygen/index.md
index 357c82504e..182bd9ecca 100644
--- a/doxygen/index.md
+++ b/doxygen/index.md
@@ -7,4 +7,4 @@ This site can be accessed via https://apidoc.pmmp.io.
 ### Additional developer resources
  - [DevTools](https://github.com/pmmp/DevTools/) - Development tools plugin for creating plugins
  - [ExamplePlugin](https://github.com/pmmp/ExamplePlugin/) - Example plugin demonstrating some basic API features
- - [DeveloperDocs](https://github.com/pmmp/DeveloperDocs/) - Reference, guides and specifications for the PocketMine-MP API
+ - [DeveloperDocs](https://devdoc.pmmp.io) - General documentation for PocketMine-MP plugin developers
diff --git a/src/command/CommandReader.php b/src/command/CommandReader.php
index 20c0a5d751..ac74145ecb 100644
--- a/src/command/CommandReader.php
+++ b/src/command/CommandReader.php
@@ -114,37 +114,28 @@ class CommandReader extends Thread{
 	 * @return bool if the main execution should continue reading lines
 	 */
 	private function readLine() : bool{
-		$line = "";
-
 		if(!is_resource(self::$stdin)){
 			$this->initStdin();
 		}
 
-		switch($this->type){
-			/** @noinspection PhpMissingBreakStatementInspection */
-			case self::TYPE_STREAM:
-				//stream_select doesn't work on piped streams for some reason
-				$r = [self::$stdin];
-				$w = $e = null;
-				if(($count = stream_select($r, $w, $e, 0, 200000)) === 0){ //nothing changed in 200000 microseconds
-					return true;
-				}elseif($count === false){ //stream error
-					$this->initStdin();
-				}
-
-			case self::TYPE_PIPED:
-				if(($raw = fgets(self::$stdin)) === false){ //broken pipe or EOF
-					$this->initStdin();
-					$this->synchronized(function() : void{
-						$this->wait(200000);
-					}); //prevent CPU waste if it's end of pipe
-					return true; //loop back round
-				}
-
-				$line = trim($raw);
-				break;
+		$r = [self::$stdin];
+		$w = $e = null;
+		if(($count = stream_select($r, $w, $e, 0, 200000)) === 0){ //nothing changed in 200000 microseconds
+			return true;
+		}elseif($count === false){ //stream error
+			$this->initStdin();
 		}
 
+		if(($raw = fgets(self::$stdin)) === false){ //broken pipe or EOF
+			$this->initStdin();
+			$this->synchronized(function() : void{
+				$this->wait(200000);
+			}); //prevent CPU waste if it's end of pipe
+			return true; //loop back round
+		}
+
+		$line = trim($raw);
+
 		if($line !== ""){
 			$this->buffer[] = preg_replace("#\\x1b\\x5b([^\\x1b]*\\x7e|[\\x40-\\x50])#", "", $line);
 			if($this->notifier !== null){
diff --git a/src/network/mcpe/handler/InGamePacketHandler.php b/src/network/mcpe/handler/InGamePacketHandler.php
index c3081eff77..c43bb5c589 100644
--- a/src/network/mcpe/handler/InGamePacketHandler.php
+++ b/src/network/mcpe/handler/InGamePacketHandler.php
@@ -98,6 +98,8 @@ use function base64_encode;
 use function count;
 use function fmod;
 use function implode;
+use function is_infinite;
+use function is_nan;
 use function json_decode;
 use function json_encode;
 use function json_last_error_msg;
@@ -153,6 +155,14 @@ class InGamePacketHandler extends PacketHandler{
 	}
 
 	public function handleMovePlayer(MovePlayerPacket $packet) : bool{
+		$rawPos = $packet->position;
+		foreach([$rawPos->x, $rawPos->y, $rawPos->z, $packet->yaw, $packet->headYaw, $packet->pitch] as $float){
+			if(is_infinite($float) || is_nan($float)){
+				$this->session->getLogger()->debug("Invalid movement received, contains NAN/INF components");
+				return false;
+			}
+		}
+
 		$yaw = fmod($packet->yaw, 360);
 		$pitch = fmod($packet->pitch, 360);
 		if($yaw < 0){
diff --git a/src/network/mcpe/protocol/AvailableCommandsPacket.php b/src/network/mcpe/protocol/AvailableCommandsPacket.php
index aa0cb8d481..f9ad2186c9 100644
--- a/src/network/mcpe/protocol/AvailableCommandsPacket.php
+++ b/src/network/mcpe/protocol/AvailableCommandsPacket.php
@@ -49,25 +49,26 @@ class AvailableCommandsPacket extends DataPacket implements ClientboundPacket{
 	 * ARG_FLAG_VALID | (type const)
 	 */
 	public const ARG_TYPE_INT             = 0x01;
-	public const ARG_TYPE_FLOAT           = 0x02;
-	public const ARG_TYPE_VALUE           = 0x03;
-	public const ARG_TYPE_WILDCARD_INT    = 0x04;
-	public const ARG_TYPE_OPERATOR        = 0x05;
-	public const ARG_TYPE_TARGET          = 0x06;
+	public const ARG_TYPE_FLOAT           = 0x03;
+	public const ARG_TYPE_VALUE           = 0x04;
+	public const ARG_TYPE_WILDCARD_INT    = 0x05;
+	public const ARG_TYPE_OPERATOR        = 0x06;
+	public const ARG_TYPE_TARGET          = 0x07;
+	public const ARG_TYPE_WILDCARD_TARGET = 0x08;
 
-	public const ARG_TYPE_FILEPATH = 0x0e;
+	public const ARG_TYPE_FILEPATH = 0x10;
 
-	public const ARG_TYPE_STRING   = 0x1d;
+	public const ARG_TYPE_STRING   = 0x20;
 
-	public const ARG_TYPE_POSITION = 0x25;
+	public const ARG_TYPE_POSITION = 0x28;
 
-	public const ARG_TYPE_MESSAGE  = 0x29;
+	public const ARG_TYPE_MESSAGE  = 0x2c;
 
-	public const ARG_TYPE_RAWTEXT  = 0x2b;
+	public const ARG_TYPE_RAWTEXT  = 0x2e;
 
-	public const ARG_TYPE_JSON     = 0x2f;
+	public const ARG_TYPE_JSON     = 0x32;
 
-	public const ARG_TYPE_COMMAND  = 0x36;
+	public const ARG_TYPE_COMMAND  = 0x3f;
 
 	/**
 	 * Enums are a little different: they are composed as follows:
diff --git a/src/network/mcpe/protocol/CommandOutputPacket.php b/src/network/mcpe/protocol/CommandOutputPacket.php
index 40470ba10a..6dc70acc8c 100644
--- a/src/network/mcpe/protocol/CommandOutputPacket.php
+++ b/src/network/mcpe/protocol/CommandOutputPacket.php
@@ -34,6 +34,11 @@ use function count;
 class CommandOutputPacket extends DataPacket implements ClientboundPacket{
 	public const NETWORK_ID = ProtocolInfo::COMMAND_OUTPUT_PACKET;
 
+	public const TYPE_LAST = 1;
+	public const TYPE_SILENT = 2;
+	public const TYPE_ALL = 3;
+	public const TYPE_DATA_SET = 4;
+
 	/** @var CommandOriginData */
 	public $originData;
 	/** @var int */
@@ -54,7 +59,7 @@ class CommandOutputPacket extends DataPacket implements ClientboundPacket{
 			$this->messages[] = $this->getCommandMessage($in);
 		}
 
-		if($this->outputType === 4){
+		if($this->outputType === self::TYPE_DATA_SET){
 			$this->unknownString = $in->getString();
 		}
 	}
@@ -85,7 +90,7 @@ class CommandOutputPacket extends DataPacket implements ClientboundPacket{
 			$this->putCommandMessage($message, $out);
 		}
 
-		if($this->outputType === 4){
+		if($this->outputType === self::TYPE_DATA_SET){
 			$out->putString($this->unknownString);
 		}
 	}
diff --git a/src/network/mcpe/protocol/EventPacket.php b/src/network/mcpe/protocol/EventPacket.php
index 924163f96e..581b02fc74 100644
--- a/src/network/mcpe/protocol/EventPacket.php
+++ b/src/network/mcpe/protocol/EventPacket.php
@@ -48,6 +48,13 @@ class EventPacket extends DataPacket implements ClientboundPacket{
 	public const TYPE_CAULDRON_BLOCK_USED = 15;
 	public const TYPE_COMPOSTER_BLOCK_USED = 16;
 	public const TYPE_BELL_BLOCK_USED = 17;
+	public const TYPE_ACTOR_DEFINITION = 18;
+	public const TYPE_RAID_UPDATE = 19;
+	public const TYPE_PLAYER_MOVEMENT_ANOMALY = 20; //anti cheat
+	public const TYPE_PLAYER_MOVEMENT_CORRECTED = 21;
+	public const TYPE_HONEY_HARVESTED = 22;
+	public const TYPE_TARGET_BLOCK_HIT = 23;
+	public const TYPE_PIGLIN_BARTER = 24;
 
 	/** @var int */
 	public $playerRuntimeId;
diff --git a/src/network/mcpe/protocol/PlayerAuthInputPacket.php b/src/network/mcpe/protocol/PlayerAuthInputPacket.php
index 96442e3769..77fa3f5f9b 100644
--- a/src/network/mcpe/protocol/PlayerAuthInputPacket.php
+++ b/src/network/mcpe/protocol/PlayerAuthInputPacket.php
@@ -28,6 +28,7 @@ namespace pocketmine\network\mcpe\protocol;
 use pocketmine\math\Vector3;
 use pocketmine\network\mcpe\protocol\serializer\PacketSerializer;
 use pocketmine\network\mcpe\protocol\types\InputMode;
+use pocketmine\network\mcpe\protocol\types\PlayerAuthInputFlags;
 use pocketmine\network\mcpe\protocol\types\PlayMode;
 use function assert;
 
@@ -60,6 +61,7 @@ class PlayerAuthInputPacket extends DataPacket implements ServerboundPacket{
 	private $delta;
 
 	/**
+	 * @param int          $inputFlags @see InputFlags
 	 * @param int          $inputMode @see InputMode
 	 * @param int          $playMode @see PlayMode
 	 * @param Vector3|null $vrGazeDirection only used when PlayMode::VR
@@ -111,6 +113,9 @@ class PlayerAuthInputPacket extends DataPacket implements ServerboundPacket{
 		return $this->moveVecZ;
 	}
 
+	/**
+	 * @see PlayerAuthInputFlags
+	 */
 	public function getInputFlags() : int{
 		return $this->inputFlags;
 	}
diff --git a/src/network/mcpe/protocol/SetTitlePacket.php b/src/network/mcpe/protocol/SetTitlePacket.php
index 58a6d7d332..989b9e9c5f 100644
--- a/src/network/mcpe/protocol/SetTitlePacket.php
+++ b/src/network/mcpe/protocol/SetTitlePacket.php
@@ -36,6 +36,9 @@ class SetTitlePacket extends DataPacket implements ClientboundPacket{
 	public const TYPE_SET_SUBTITLE = 3;
 	public const TYPE_SET_ACTIONBAR_MESSAGE = 4;
 	public const TYPE_SET_ANIMATION_TIMES = 5;
+	public const TYPE_SET_TITLE_JSON = 6;
+	public const TYPE_SET_SUBTITLE_JSON = 7;
+	public const TYPE_SET_ACTIONBAR_MESSAGE_JSON = 8;
 
 	/** @var int */
 	public $type;
diff --git a/src/network/mcpe/protocol/types/PlayerAuthInputFlags.php b/src/network/mcpe/protocol/types/PlayerAuthInputFlags.php
new file mode 100644
index 0000000000..83104c88ed
--- /dev/null
+++ b/src/network/mcpe/protocol/types/PlayerAuthInputFlags.php
@@ -0,0 +1,75 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\network\mcpe\protocol\types;
+
+use pocketmine\network\mcpe\protocol\PlayerAuthInputPacket;
+
+/**
+ * These flags are used in PlayerAuthInputPacket's inputFlags field.
+ * The flags should be written as
+ * `flags |= (1 << flag)`
+ * and read as
+ * `(flags & (1 & flag)) !== 0`
+ *
+ * @see PlayerAuthInputPacket
+ */
+final class PlayerAuthInputFlags{
+	public const ASCEND = 0;
+	public const DESCEND = 1;
+	public const NORTH_JUMP = 2;
+	public const JUMP_DOWN = 3;
+	public const SPRINT_DOWN = 4;
+	public const CHANGE_HEIGHT = 5;
+	public const JUMPING = 6;
+	public const AUTO_JUMPING_IN_WATER = 7;
+	public const SNEAKING = 8;
+	public const SNEAK_DOWN = 9;
+	public const UP = 10;
+	public const DOWN = 11;
+	public const LEFT = 12;
+	public const RIGHT = 13;
+	public const UP_LEFT = 14;
+	public const UP_RIGHT = 15;
+	public const WANT_UP = 16;
+	public const WANT_DOWN = 17;
+	public const WANT_DOWN_SLOW = 18;
+	public const WANT_UP_SLOW = 19;
+	public const SPRINTING = 20;
+	public const ASCEND_SCAFFOLDING = 21;
+	public const DESCEND_SCAFFOLDING = 22;
+	public const SNEAK_TOGGLE_DOWN = 23;
+	public const PERSIST_SNEAK = 24;
+	public const START_SPRINTING = 25;
+	public const STOP_SPRINTING = 26;
+	public const START_SNEAKING = 27;
+	public const STOP_SNEAKING = 28;
+	public const START_SWIMMING = 29;
+	public const STOP_SWIMMING = 30;
+	public const START_JUMPING = 31;
+	public const START_GLIDING = 32;
+	public const STOP_GLIDING = 33;
+	public const PERFORM_ITEM_INTERACTION = 34;
+	public const PERFORM_BLOCK_ACTIONS = 35;
+	public const PERFORM_ITEM_STACK_REQUEST = 36;
+}
diff --git a/tests/phpstan/configs/actual-problems.neon b/tests/phpstan/configs/actual-problems.neon
index e7d66f59a3..9d660bcfe8 100644
--- a/tests/phpstan/configs/actual-problems.neon
+++ b/tests/phpstan/configs/actual-problems.neon
@@ -40,16 +40,6 @@ parameters:
 			count: 1
 			path: ../../../src/event/entity/EntityShootBowEvent.php
 
-		-
-			message: "#^Cannot instantiate interface pocketmine\\\\world\\\\format\\\\io\\\\WritableWorldProvider\\.$#"
-			count: 1
-			path: ../../../src/world/WorldManager.php
-
-		-
-			message: "#^Cannot instantiate interface pocketmine\\\\world\\\\format\\\\io\\\\WritableWorldProvider\\.$#"
-			count: 2
-			path: ../../../src/world/format/io/FormatConverter.php
-
 		-
 			message: "#^Variable property access on \\$this\\(pocketmine\\\\world\\\\generator\\\\PopulationTask\\)\\.$#"
 			count: 4
diff --git a/tests/phpstan/configs/check-explicit-mixed-baseline.neon b/tests/phpstan/configs/check-explicit-mixed-baseline.neon
index 70ec278e46..03a4f7b039 100644
--- a/tests/phpstan/configs/check-explicit-mixed-baseline.neon
+++ b/tests/phpstan/configs/check-explicit-mixed-baseline.neon
@@ -5,11 +5,6 @@ parameters:
 			count: 1
 			path: ../../../src/CrashDump.php
 
-		-
-			message: "#^Parameter \\#3 \\$subject of function preg_replace expects array\\|string, mixed given\\.$#"
-			count: 1
-			path: ../../../src/CrashDump.php
-
 		-
 			message: "#^Cannot access offset float\\|int on mixed\\.$#"
 			count: 1
@@ -20,11 +15,6 @@ parameters:
 			count: 1
 			path: ../../../src/CrashDump.php
 
-		-
-			message: "#^Cannot access offset 'name' on mixed\\.$#"
-			count: 1
-			path: ../../../src/CrashDump.php
-
 		-
 			message: "#^Cannot cast mixed to int\\.$#"
 			count: 7
@@ -275,11 +265,6 @@ parameters:
 			count: 1
 			path: ../../../src/utils/MainLogger.php
 
-		-
-			message: "#^Parameter \\#2 \\$str of function fwrite expects string, mixed given\\.$#"
-			count: 1
-			path: ../../../src/utils/MainLoggerThread.php
-
 		-
 			message: "#^Cannot access offset 'status' on mixed\\.$#"
 			count: 1
@@ -345,21 +330,6 @@ parameters:
 			count: 1
 			path: ../../../src/world/generator/Flat.php
 
-		-
-			message: "#^Parameter \\#4 \\$q0 of static method pocketmine\\\\world\\\\generator\\\\noise\\\\Noise\\:\\:linearLerp\\(\\) expects float, mixed given\\.$#"
-			count: 1
-			path: ../../../src/world/generator/noise/Noise.php
-
-		-
-			message: "#^Parameter \\#5 \\$q1 of static method pocketmine\\\\world\\\\generator\\\\noise\\\\Noise\\:\\:linearLerp\\(\\) expects float, mixed given\\.$#"
-			count: 1
-			path: ../../../src/world/generator/noise/Noise.php
-
-		-
-			message: "#^Cannot access offset int on mixed\\.$#"
-			count: 6
-			path: ../../../src/world/generator/noise/Noise.php
-
 		-
 			message: "#^Parameter \\#2 \\$array of static method PHPUnit\\\\Framework\\\\Assert\\:\\:assertArrayHasKey\\(\\) expects array\\|ArrayAccess, mixed given\\.$#"
 			count: 1
diff --git a/tests/phpstan/configs/l7-baseline.neon b/tests/phpstan/configs/l7-baseline.neon
index 9d6342553d..062ae484a9 100644
--- a/tests/phpstan/configs/l7-baseline.neon
+++ b/tests/phpstan/configs/l7-baseline.neon
@@ -660,16 +660,6 @@ parameters:
 			count: 1
 			path: ../../../src/network/mcpe/protocol/types/inventory/UseItemTransactionData.php
 
-		-
-			message: "#^Call to an undefined method object\\:\\:Add\\(\\)\\.$#"
-			count: 1
-			path: ../../../src/network/upnp/UPnP.php
-
-		-
-			message: "#^Call to an undefined method object\\:\\:Remove\\(\\)\\.$#"
-			count: 1
-			path: ../../../src/network/upnp/UPnP.php
-
 		-
 			message: "#^Array \\(array\\<int, pocketmine\\\\player\\\\UsedChunkStatus\\>\\) does not accept key \\(int\\|string\\)\\.$#"
 			count: 3