diff --git a/osu.Desktop/Overlays/VersionManager.cs b/osu.Desktop/Overlays/VersionManager.cs
index 9f2f79f1df..0780ed9cce 100644
--- a/osu.Desktop/Overlays/VersionManager.cs
+++ b/osu.Desktop/Overlays/VersionManager.cs
@@ -21,7 +21,6 @@ using OpenTK.Graphics;
 
 #if NET_FRAMEWORK
 using System;
-using System.Net.Http;
 using osu.Framework.Logging;
 using Squirrel;
 #endif
diff --git a/osu.Game.Tests/Beatmaps/Formats/OsuLegacyDecoderTest.cs b/osu.Game.Tests/Beatmaps/Formats/OsuLegacyDecoderTest.cs
index 95b691e07f..53989c8775 100644
--- a/osu.Game.Tests/Beatmaps/Formats/OsuLegacyDecoderTest.cs
+++ b/osu.Game.Tests/Beatmaps/Formats/OsuLegacyDecoderTest.cs
@@ -126,7 +126,7 @@ namespace osu.Game.Tests.Beatmaps.Formats
                 var beatmap = decoder.Decode(new StreamReader(stream));
 
                 var curveData = beatmap.HitObjects[0] as IHasCurve;
-                var positionData = beatmap.HitObjects[0] as IHasPosition;
+                var positionData = (IHasPosition)beatmap.HitObjects[0];
 
                 Assert.IsNotNull(positionData);
                 Assert.IsNotNull(curveData);
@@ -134,7 +134,7 @@ namespace osu.Game.Tests.Beatmaps.Formats
                 Assert.AreEqual(956, beatmap.HitObjects[0].StartTime);
                 Assert.IsTrue(beatmap.HitObjects[0].Samples.Any(s => s.Name == SampleInfo.HIT_NORMAL));
 
-                positionData = beatmap.HitObjects[1] as IHasPosition;
+                positionData = (IHasPosition)beatmap.HitObjects[1];
 
                 Assert.IsNotNull(positionData);
                 Assert.AreEqual(new Vector2(304, 56), positionData.Position);
diff --git a/osu.Game/Overlays/Profile/Sections/Kudosu/KudosuInfo.cs b/osu.Game/Overlays/Profile/Sections/Kudosu/KudosuInfo.cs
index 8a835634b8..b59df1214a 100644
--- a/osu.Game/Overlays/Profile/Sections/Kudosu/KudosuInfo.cs
+++ b/osu.Game/Overlays/Profile/Sections/Kudosu/KudosuInfo.cs
@@ -75,7 +75,7 @@ namespace osu.Game.Overlays.Profile.Sections.Kudosu
         {
             private readonly OsuSpriteText valueText;
 
-            public int Count
+            public new int Count
             {
                 set { valueText.Text = value.ToString(); }
             }
diff --git a/osu.Game/Overlays/Settings/SidebarButton.cs b/osu.Game/Overlays/Settings/SidebarButton.cs
index 4b8366f0fc..bc5357f05a 100644
--- a/osu.Game/Overlays/Settings/SidebarButton.cs
+++ b/osu.Game/Overlays/Settings/SidebarButton.cs
@@ -22,7 +22,7 @@ namespace osu.Game.Overlays.Settings
         private readonly SpriteText headerText;
         private readonly Box selectionIndicator;
         private readonly Container text;
-        public Action<SettingsSection> Action;
+        public new Action<SettingsSection> Action;
 
         private SettingsSection section;
         public SettingsSection Section