diff --git a/SubstrateCS/Source/BlockInfo.cs b/SubstrateCS/Source/BlockInfo.cs
index 1cd1117..baa4fe1 100644
--- a/SubstrateCS/Source/BlockInfo.cs
+++ b/SubstrateCS/Source/BlockInfo.cs
@@ -7,7 +7,7 @@ namespace Substrate
     /// <summary>
     /// Provides named id values for known block types.
     /// </summary>
-    /// <remarks><para>The BlockType constants are obsolete.  The preferred method to lookup
+    /// <remarks><para>The preferred method to lookup
     /// Minecraft block IDs is to access the ID field of the corresponding static BlockInfo
     /// object in the BlockInfo class.</para>
     /// <para>The static BlockInfo objects can be re-bound to new BlockInfo objects, allowing
@@ -15,7 +15,6 @@ namespace Substrate
     /// in supporting nonstandard worlds, and the ability to future-proof their application against
     /// changes to Block IDs, by implementing functionality to import block/ID mappings from an
     /// external source and rebinding the objects in BlockInfo.</para></remarks>
-    [Obsolete("Prefer using BlockInfo.Something.ID over BlockType.SOMETHING")]
     public static class BlockType
     {
         public const int AIR = 0;
diff --git a/SubstrateCS/Source/ItemInfo.cs b/SubstrateCS/Source/ItemInfo.cs
index a6344cb..8889195 100644
--- a/SubstrateCS/Source/ItemInfo.cs
+++ b/SubstrateCS/Source/ItemInfo.cs
@@ -7,9 +7,7 @@ namespace Substrate
     /// <summary>
     /// Provides named id values for known item types.
     /// </summary>
-    /// <remarks>The BlockType constants are obsolete.  See <see cref="BlockType"/> for additional
-    /// information.</remarks>
-    [Obsolete("Prefer using ItemInfo.Something.ID over ItemType.SOMETHING")]
+    /// <remarks>See <see cref="BlockType"/> for additional information.</remarks>
     public static class ItemType
     {
         public const int IRON_SHOVEL = 256;