diff --git a/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java b/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
index 01b02b1b..7f6ee7fe 100644
--- a/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
+++ b/api/src/main/java/com/velocitypowered/api/network/ProtocolVersion.java
@@ -54,7 +54,7 @@ public enum ProtocolVersion {
   MINECRAFT_1_16_2(751, "1.16.2"),
   MINECRAFT_1_16_3(753, "1.16.3"),
   MINECRAFT_1_16_4(754, "1.16.4", "1.16.5"),
-  MINECRAFT_1_17(-1, 9, "1.17"); // Note: Indev as of 20w45a (754, borked by Mojang)
+  MINECRAFT_1_17(-1, 11, "1.17"); // Snapshot: 21w03a, future protocol: 755
 
   private static final int SNAPSHOT_BIT = 30;
 
diff --git a/api/src/main/java/com/velocitypowered/api/proxy/Player.java b/api/src/main/java/com/velocitypowered/api/proxy/Player.java
index 4635c74f..5fb68d4c 100644
--- a/api/src/main/java/com/velocitypowered/api/proxy/Player.java
+++ b/api/src/main/java/com/velocitypowered/api/proxy/Player.java
@@ -252,8 +252,10 @@ public interface Player extends CommandSource, Identified, InboundConnection,
    *
    * @param url the URL for the resource pack
    * @param hash the SHA-1 hash value for the resource pack
-   * @param isRequired flag to set the resource pack as required in 1.17+
+   * @param isRequired Only in 1.17+ or newer: If true shows the pack as required to play,
+   *     and removes the decline option. Declining it anyway will disconnect the user.
    */
   void sendResourcePack(String url, byte[] hash, boolean isRequired);
  
 }
+
diff --git a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java
index 7640d331..07b69bae 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/connection/registry/DimensionData.java
@@ -242,9 +242,9 @@ public final class DimensionData {
     Integer height = details.keySet().contains("height") ? details.getInt("height") : null;
     if (version.compareTo(ProtocolVersion.MINECRAFT_1_17) >= 0) {
       Preconditions.checkNotNull(height,
-              "DimensionData requires 'minY' to be present for this version");
-      Preconditions.checkNotNull(minY,
               "DimensionData requires 'height' to be present for this version");
+      Preconditions.checkNotNull(minY,
+              "DimensionData requires 'minY' to be present for this version");
     }
     return new DimensionData(
         UNKNOWN_DIMENSION_ID, null, isNatural, ambientLight, isShrunk,