diff --git a/IPA.Loader/IPA.Loader.csproj b/IPA.Loader/IPA.Loader.csproj
index 9540d98c..fabcff13 100644
--- a/IPA.Loader/IPA.Loader.csproj
+++ b/IPA.Loader/IPA.Loader.csproj
@@ -128,9 +128,6 @@
     <Compile Include="Logging\StdoutInterceptor.cs" />
     <Compile Include="PluginInterfaces\Attributes\LifecycleAttributes.cs" />
     <Compile Include="PluginInterfaces\Attributes\PluginAttribute.cs" />
-    <Compile Include="PluginInterfaces\BeatSaber\IDisablablePlugin.cs" />
-    <Compile Include="PluginInterfaces\BeatSaber\IEnhancedPlugin.cs" />
-    <Compile Include="PluginInterfaces\BeatSaber\IPlugin.cs" />
     <Compile Include="Config\IniFile.cs" />
     <Compile Include="PluginInterfaces\IPA\IEnhancedPlugin.cs" />
     <Compile Include="PluginInterfaces\IPA\IPlugin.cs" />
diff --git a/IPA.Loader/Loader/PluginLoader.cs b/IPA.Loader/Loader/PluginLoader.cs
index c1aa84fd..5abbcd7f 100644
--- a/IPA.Loader/Loader/PluginLoader.cs
+++ b/IPA.Loader/Loader/PluginLoader.cs
@@ -44,21 +44,6 @@ namespace IPA.Loader
             ResolveDependencies();
         });
 
-        /// <summary>
-        /// A container object for all the data relating to a plugin.
-        /// </summary>
-        [Obsolete("No longer useful as a construct")]
-        public class PluginInfo
-        {
-            internal IPlugin Plugin { get; set; }
-
-            /// <summary>
-            /// Metadata for the plugin.
-            /// </summary>
-            /// <value>the metadata for this plugin</value>
-            public PluginMetadata Metadata { get; internal set; } = new PluginMetadata();
-        }
-
         internal static void YeetIfNeeded()
         {
             string pluginDir = BeatSaber.PluginsPath;
@@ -197,14 +182,6 @@ namespace IPA.Loader
                                     return;
                                 }
                             }
-
-                            if (type.HasInterface(typeof(IPlugin).FullName))
-                            {
-                                Logger.loader.Warn("Interface-based plugin found");
-                                meta.IsAttributePlugin = false;
-                                meta.PluginType = type;
-                                return;
-                            }
                         }
                     }
 
diff --git a/IPA.Loader/Loader/PluginManager.cs b/IPA.Loader/Loader/PluginManager.cs
index 2c4e4488..91525b86 100644
--- a/IPA.Loader/Loader/PluginManager.cs
+++ b/IPA.Loader/Loader/PluginManager.cs
@@ -222,12 +222,11 @@ namespace IPA.Loader
         /// <returns><see langword="true"/> if the plugin is enabled, <see langword="false"/> otherwise.</returns>
         public static bool IsEnabled(PluginMetadata meta) => BSMetas.Any(p => p.Metadata == meta);
 
-        private static readonly List<PluginInfo> runtimeDisabled = new List<PluginInfo>();
         /// <summary>
         /// Gets a list of disabled BSIPA plugins.
         /// </summary>
         /// <value>a collection of all disabled plugins as <see cref="PluginMetadata"/></value>
-        public static IEnumerable<PluginMetadata> DisabledPlugins => PluginLoader.DisabledPlugins.Concat(runtimeDisabled.Select(p => p.Metadata));
+        public static IEnumerable<PluginMetadata> DisabledPlugins => PluginLoader.DisabledPlugins;
 
         /// <summary>
         /// An invoker for the <see cref="PluginEnabled"/> event.
diff --git a/IPA.Loader/PluginInterfaces/BeatSaber/IDisablablePlugin.cs b/IPA.Loader/PluginInterfaces/BeatSaber/IDisablablePlugin.cs
deleted file mode 100644
index 7d5abd42..00000000
--- a/IPA.Loader/PluginInterfaces/BeatSaber/IDisablablePlugin.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-using System;
-
-namespace IPA
-{
-    /// <summary>
-    /// Provides methods to allow runtime disabling of a plugin.
-    /// </summary>
-    [Obsolete("Use the attribute-based system instead.")]
-    public interface IDisablablePlugin : IPlugin
-    {
-
-        /// <summary>
-        /// Called when a plugin is disabled at runtime. This should disable things like Harmony patches and unsubscribe
-        /// from events. After this is called there should be no lingering effects of the mod.
-        /// </summary>
-        /// <remarks>
-        /// This will get called at shutdown, after <see cref="IPlugin.OnApplicationQuit"/>, as well as when the
-        /// plugin is disabled at runtime.
-        /// </remarks>
-        void OnDisable();
-    }
-}
diff --git a/IPA.Loader/PluginInterfaces/BeatSaber/IEnhancedPlugin.cs b/IPA.Loader/PluginInterfaces/BeatSaber/IEnhancedPlugin.cs
deleted file mode 100644
index 583e67e2..00000000
--- a/IPA.Loader/PluginInterfaces/BeatSaber/IEnhancedPlugin.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace IPA
-{
-    /// <inheritdoc cref="IPlugin" />
-    /// <summary>
-    /// An enhanced version of a standard BeatSaber plugin.
-    /// </summary>
-    [Obsolete("Use the attribute-based system instead.")]
-    public interface IEnhancedPlugin : IPlugin
-    {
-
-        /// <summary>
-        /// Gets invoked on every graphic update.
-        /// </summary>
-        void OnUpdate();
-
-        /// <summary>
-        /// Gets invoked on ever physics update.
-        /// </summary>
-        void OnFixedUpdate();
-
-        /// <summary>
-        /// Called after Update.
-        /// </summary>
-        void OnLateUpdate();
-    }
-}
diff --git a/IPA.Loader/PluginInterfaces/BeatSaber/IPlugin.cs b/IPA.Loader/PluginInterfaces/BeatSaber/IPlugin.cs
deleted file mode 100644
index afcd50fa..00000000
--- a/IPA.Loader/PluginInterfaces/BeatSaber/IPlugin.cs
+++ /dev/null
@@ -1,53 +0,0 @@
-using System;
-using UnityEngine.SceneManagement;
-
-namespace IPA
-{
-    /// <summary>
-    /// Interface for BSIPA plugins. Every class that implements this will be loaded if the DLL is placed at
-    /// &lt;install dir&gt;/Plugins.
-    /// </summary>
-    /// <remarks>
-    /// Mods implemented with this interface should handle being enabled at runtime properly, unless marked
-    /// with the "no-runtime-enable" feature.
-    /// </remarks>
-    [Obsolete("Use the attribute-based system instead.")]
-    public interface IPlugin
-    {
-        /// <summary>
-        /// Called when a plugin is enabled. This is where you should set up Harmony patches and the like.
-        /// </summary>
-        /// <remarks>
-        /// This will be called after <c>Init</c>, and will be called when the plugin loads normally too.
-        /// When a plugin is disabled at startup, neither this nor Init will be called until it is enabled.
-        /// 
-        /// Init will only ever be called once.
-        /// </remarks>
-        void OnEnable();
-
-        /// <summary>
-        /// Gets invoked when the application is closed.
-        /// </summary>
-        void OnApplicationQuit();
-
-        /// <summary>
-        /// Gets invoked whenever a scene is loaded.
-        /// </summary>
-        /// <param name="scene">The scene currently loaded</param>
-        /// <param name="sceneMode">The type of loading</param>
-        void OnSceneLoaded(Scene scene, LoadSceneMode sceneMode);
-
-        /// <summary>
-        /// Gets invoked whenever a scene is unloaded
-        /// </summary>
-        /// <param name="scene">The unloaded scene</param>
-        void OnSceneUnloaded(Scene scene);
-
-        /// <summary>
-        /// Gets invoked whenever a scene is changed
-        /// </summary>
-        /// <param name="prevScene">The Scene that was previously loaded</param>
-        /// <param name="nextScene">The Scene being loaded</param>
-        void OnActiveSceneChanged(Scene prevScene, Scene nextScene);
-    }
-}