diff --git a/resources/resource_packs.yml b/resources/resource_packs.yml
index 39677852d..f236117d5 100644
--- a/resources/resource_packs.yml
+++ b/resources/resource_packs.yml
@@ -10,3 +10,4 @@ resource_stack:
   # - natural.zip
   # - vanilla.zip
   #If you want to force clients to use vanilla resources, you must place a vanilla resource pack in your resources folder and add it to the stack here.
+  #To specify a resource encryption key, put the key in the <resource>.key file alongside the resource pack. Example: vanilla.zip.key
diff --git a/src/block/Sugarcane.php b/src/block/Sugarcane.php
index 2b7dfd0b6..69951dce4 100644
--- a/src/block/Sugarcane.php
+++ b/src/block/Sugarcane.php
@@ -32,6 +32,7 @@ use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
+use pocketmine\world\Position;
 
 class Sugarcane extends Flowable{
 	public const MAX_AGE = 15;
@@ -44,14 +45,23 @@ class Sugarcane extends Flowable{
 		$w->boundedInt(4, 0, self::MAX_AGE, $this->age);
 	}
 
-	private function grow() : bool{
-		$grew = false;
+	private function seekToBottom() : Position{
 		$world = $this->position->getWorld();
+		$bottom = $this->position;
+		while(($next = $world->getBlock($bottom->down()))->isSameType($this)){
+			$bottom = $next->position;
+		}
+		return $bottom;
+	}
+
+	private function grow(Position $pos) : bool{
+		$grew = false;
+		$world = $pos->getWorld();
 		for($y = 1; $y < 3; ++$y){
-			if(!$world->isInWorld($this->position->x, $this->position->y + $y, $this->position->z)){
+			if(!$world->isInWorld($pos->x, $pos->y + $y, $pos->z)){
 				break;
 			}
-			$b = $world->getBlockAt($this->position->x, $this->position->y + $y, $this->position->z);
+			$b = $world->getBlockAt($pos->x, $pos->y + $y, $pos->z);
 			if($b->getTypeId() === BlockTypeIds::AIR){
 				$ev = new BlockGrowEvent($b, VanillaBlocks::SUGARCANE());
 				$ev->call();
@@ -60,12 +70,12 @@ class Sugarcane extends Flowable{
 				}
 				$world->setBlock($b->position, $ev->getNewState());
 				$grew = true;
-			}else{
+			}elseif(!$b->isSameType($this)){
 				break;
 			}
 		}
 		$this->age = 0;
-		$world->setBlock($this->position, $this);
+		$world->setBlock($pos, $this);
 		return $grew;
 	}
 
@@ -82,7 +92,7 @@ class Sugarcane extends Flowable{
 
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item instanceof Fertilizer){
-			if(!$this->getSide(Facing::DOWN)->isSameType($this) && $this->grow()){
+			if($this->grow($this->seekToBottom())){
 				$item->pop();
 			}
 
@@ -113,7 +123,7 @@ class Sugarcane extends Flowable{
 	public function onRandomTick() : void{
 		if(!$this->getSide(Facing::DOWN)->isSameType($this)){
 			if($this->age === self::MAX_AGE){
-				$this->grow();
+				$this->grow($this->position);
 			}else{
 				++$this->age;
 				$this->position->getWorld()->setBlock($this->position, $this);
diff --git a/src/command/SimpleCommandMap.php b/src/command/SimpleCommandMap.php
index 89a9d6465..89824aa32 100644
--- a/src/command/SimpleCommandMap.php
+++ b/src/command/SimpleCommandMap.php
@@ -274,10 +274,11 @@ class SimpleCommandMap implements CommandMap{
 			}
 
 			//These registered commands have absolute priority
+			$lowerAlias = strtolower($alias);
 			if(count($targets) > 0){
-				$this->knownCommands[strtolower($alias)] = new FormattedCommandAlias(strtolower($alias), $targets);
+				$this->knownCommands[$lowerAlias] = new FormattedCommandAlias($lowerAlias, $targets);
 			}else{
-				unset($this->knownCommands[strtolower($alias)]);
+				unset($this->knownCommands[$lowerAlias]);
 			}
 
 		}
diff --git a/src/entity/Entity.php b/src/entity/Entity.php
index 5799b339a..b4e2ca8de 100644
--- a/src/entity/Entity.php
+++ b/src/entity/Entity.php
@@ -205,10 +205,8 @@ abstract class Entity{
 		$this->getWorld()->addEntity($this);
 
 		$this->lastUpdate = $this->server->getTick();
-		(new EntitySpawnEvent($this))->call();
 
 		$this->scheduleUpdate();
-
 	}
 
 	abstract protected function getInitialSizeInfo() : EntitySizeInfo;
@@ -908,6 +906,14 @@ abstract class Entity{
 		return (new Vector2(-cos(deg2rad($this->location->yaw) - M_PI_2), -sin(deg2rad($this->location->yaw) - M_PI_2)))->normalize();
 	}
 
+	/**
+	 * Called from onUpdate() on the first tick of a new entity. This is called before any movement processing or
+	 * main ticking logic. Use this to fire any events related to spawning the entity.
+	 */
+	protected function onFirstUpdate(int $currentTick) : void{
+		(new EntitySpawnEvent($this))->call();
+	}
+
 	public function onUpdate(int $currentTick) : bool{
 		if($this->closed){
 			return false;
@@ -924,6 +930,10 @@ abstract class Entity{
 
 		$this->lastUpdate = $currentTick;
 
+		if($this->justCreated){
+			$this->onFirstUpdate($currentTick);
+		}
+
 		if(!$this->isAlive()){
 			if($this->onDeathUpdate($tickDiff)){
 				$this->flagForDespawn();
diff --git a/src/entity/Living.php b/src/entity/Living.php
index 30a0b68d4..7485af2bb 100644
--- a/src/entity/Living.php
+++ b/src/entity/Living.php
@@ -278,6 +278,10 @@ abstract class Living extends Entity{
 		return $nbt;
 	}
 
+	/**
+	 * @deprecated This function always returns true, no matter whether the target is in the line of sight or not.
+	 * @see VoxelRayTrace::inDirection() for a more generalized method of ray-tracing to a target.
+	 */
 	public function hasLineOfSight(Entity $entity) : bool{
 		//TODO: head height
 		return true;
diff --git a/src/entity/object/ItemEntity.php b/src/entity/object/ItemEntity.php
index 95825bfcd..f20ec8445 100644
--- a/src/entity/object/ItemEntity.php
+++ b/src/entity/object/ItemEntity.php
@@ -85,8 +85,11 @@ class ItemEntity extends Entity{
 		$this->pickupDelay = $nbt->getShort("PickupDelay", $this->pickupDelay);
 		$this->owner = $nbt->getString("Owner", $this->owner);
 		$this->thrower = $nbt->getString("Thrower", $this->thrower);
+	}
 
-		(new ItemSpawnEvent($this))->call();
+	protected function onFirstUpdate(int $currentTick) : void{
+		(new ItemSpawnEvent($this))->call(); //this must be called before EntitySpawnEvent, to maintain backwards compatibility
+		parent::onFirstUpdate($currentTick);
 	}
 
 	protected function entityBaseTick(int $tickDiff = 1) : bool{
diff --git a/src/network/mcpe/handler/ResourcePacksPacketHandler.php b/src/network/mcpe/handler/ResourcePacksPacketHandler.php
index a7c603ceb..d1ba85724 100644
--- a/src/network/mcpe/handler/ResourcePacksPacketHandler.php
+++ b/src/network/mcpe/handler/ResourcePacksPacketHandler.php
@@ -65,9 +65,19 @@ class ResourcePacksPacketHandler extends PacketHandler{
 	){}
 
 	public function setUp() : void{
-		$resourcePackEntries = array_map(static function(ResourcePack $pack) : ResourcePackInfoEntry{
+		$resourcePackEntries = array_map(function(ResourcePack $pack) : ResourcePackInfoEntry{
 			//TODO: more stuff
-			return new ResourcePackInfoEntry($pack->getPackId(), $pack->getPackVersion(), $pack->getPackSize(), "", "", "", false);
+			$encryptionKey = $this->resourcePackManager->getPackEncryptionKey($pack->getPackId());
+
+			return new ResourcePackInfoEntry(
+				$pack->getPackId(),
+				$pack->getPackVersion(),
+				$pack->getPackSize(),
+				$encryptionKey ?? "",
+				"",
+				$pack->getPackId(),
+				false
+			);
 		}, $this->resourcePackManager->getResourceStack());
 		//TODO: support forcing server packs
 		$this->session->sendDataPacket(ResourcePacksInfoPacket::create($resourcePackEntries, [], $this->resourcePackManager->resourcePacksRequired(), false, false));
diff --git a/src/player/Player.php b/src/player/Player.php
index d51329986..126951811 100644
--- a/src/player/Player.php
+++ b/src/player/Player.php
@@ -1345,6 +1345,10 @@ class Player extends Human implements CommandSender, ChunkListener, IPlayer{
 
 		$this->lastUpdate = $currentTick;
 
+		if($this->justCreated){
+			$this->onFirstUpdate($currentTick);
+		}
+
 		if(!$this->isAlive() && $this->spawned){
 			$this->onDeathUpdate($tickDiff);
 			return true;
diff --git a/src/resourcepacks/ResourcePackManager.php b/src/resourcepacks/ResourcePackManager.php
index 4aaa9afc7..e6b37543a 100644
--- a/src/resourcepacks/ResourcePackManager.php
+++ b/src/resourcepacks/ResourcePackManager.php
@@ -23,12 +23,14 @@ declare(strict_types=1);
 
 namespace pocketmine\resourcepacks;
 
+use pocketmine\errorhandler\ErrorToExceptionHandler;
 use pocketmine\utils\Config;
 use Webmozart\PathUtil\Path;
 use function array_keys;
 use function copy;
 use function count;
 use function file_exists;
+use function file_get_contents;
 use function gettype;
 use function is_array;
 use function is_dir;
@@ -49,6 +51,12 @@ class ResourcePackManager{
 	/** @var ResourcePack[] */
 	private array $uuidList = [];
 
+	/**
+	 * @var string[]
+	 * @phpstan-var array<string, string>
+	 */
+	private array $encryptionKeys = [];
+
 	/**
 	 * @param string  $path Path to resource-packs directory.
 	 */
@@ -105,7 +113,19 @@ class ResourcePackManager{
 
 				if($newPack instanceof ResourcePack){
 					$this->resourcePacks[] = $newPack;
-					$this->uuidList[strtolower($newPack->getPackId())] = $newPack;
+					$index = strtolower($newPack->getPackId());
+					$this->uuidList[$index] = $newPack;
+
+					$keyPath = Path::join($this->path, $pack . ".key");
+					if(file_exists($keyPath)){
+						try{
+							$this->encryptionKeys[$index] = ErrorToExceptionHandler::trapAndRemoveFalse(
+								fn() => file_get_contents($keyPath)
+							);
+						}catch(\ErrorException $e){
+							throw new ResourcePackException("Could not read encryption key file: " . $e->getMessage(), 0, $e);
+						}
+					}
 				}else{
 					throw new ResourcePackException("Format not recognized");
 				}
@@ -153,4 +173,11 @@ class ResourcePackManager{
 	public function getPackIdList() : array{
 		return array_keys($this->uuidList);
 	}
+
+	/**
+	 * Returns the key with which the pack was encrypted, or null if the pack has no key.
+	 */
+	public function getPackEncryptionKey(string $id) : ?string{
+		return $this->encryptionKeys[strtolower($id)] ?? null;
+	}
 }