Merge branch 'master' into fix-discord-rpc

.idea/.idea.osu.Desktop/.idea/runConfigurations/CatchRuleset__Tests_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="CatchRuleset (Tests)" type="DotNetProject" factoryName=".NET Project" folderName="Ruleset">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Catch.Tests/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Catch.Tests.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Catch.Tests/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Catch.Tests.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Game.Rulesets.Catch.Tests" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <browser url="http://localhost:5000" />
     <method v="2">
       <option name="Build" enabled="true" />

.idea/.idea.osu.Desktop/.idea/runConfigurations/ManiaRuleset__Tests_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="ManiaRuleset (Tests)" type="DotNetProject" factoryName=".NET Project" folderName="Ruleset">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Mania.Tests/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Mania.Tests.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Mania.Tests/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Mania.Tests.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Game.Rulesets.Mania.Tests" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <browser url="http://localhost:5000" />
     <method v="2">
       <option name="Build" enabled="true" />

.idea/.idea.osu.Desktop/.idea/runConfigurations/OsuRuleset__Tests_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="OsuRuleset (Tests)" type="DotNetProject" factoryName=".NET Project" folderName="Ruleset">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Osu.Tests/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Osu.Tests.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Osu.Tests/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Osu.Tests.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Game.Rulesets.Osu.Tests" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <browser url="http://localhost:5000" />
     <method v="2">
       <option name="Build" enabled="true" />

.idea/.idea.osu.Desktop/.idea/runConfigurations/TaikoRuleset__Tests_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="TaikoRuleset (Tests)" type="DotNetProject" factoryName=".NET Project" folderName="Ruleset">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Taiko.Tests/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Taiko.Tests.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Rulesets.Taiko.Tests/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Taiko.Tests.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Game.Rulesets.Taiko.Tests" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <browser url="http://localhost:5000" />
     <method v="2">
       <option name="Build" enabled="true" />

.idea/.idea.osu.Desktop/.idea/runConfigurations/Tournament.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="Tournament" type="DotNetProject" factoryName=".NET Project" folderName="Tournament">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Desktop/bin/Debug/netcoreapp3.0/osu!.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Desktop/bin/Debug/netcoreapp3.1/osu!.dll" />
     <option name="PROGRAM_PARAMETERS" value="--tournament" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Desktop" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <method v="2">
       <option name="Build" enabled="true" />
     </method>

.idea/.idea.osu.Desktop/.idea/runConfigurations/Tournament__Tests_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="Tournament (Tests)" type="DotNetProject" factoryName=".NET Project" folderName="Tournament">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Tournament.Tests/bin/Debug/netcoreapp2.1/osu.Game.Tournament.Tests.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.1/osu.Game.Tournament.Tests.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Game.Tournament.Tests" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v2.1" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <browser url="http://localhost:5000" />
     <method v="2">
       <option name="Build" enabled="true" />

.idea/.idea.osu.Desktop/.idea/runConfigurations/osu_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="osu!" type="DotNetProject" factoryName=".NET Project" folderName="osu!">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Desktop/bin/Debug/netcoreapp3.0/osu!.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Desktop/bin/Debug/netcoreapp3.1/osu!.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Desktop" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <method v="2">
       <option name="Build" enabled="true" />
     </method>

.idea/.idea.osu.Desktop/.idea/runConfigurations/osu___Tests_.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="osu! (Tests)" type="DotNetProject" factoryName=".NET Project" folderName="osu!">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Tests/bin/Debug/netcoreapp3.0/osu.Game.Tests.dll" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/osu.Game.Tests/bin/Debug/netcoreapp3.1/osu.Game.Tests.dll" />
     <option name="PROGRAM_PARAMETERS" value="" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/osu.Game.Tests" />
     <option name="PASS_PARENT_ENVS" value="1" />
@@ -12,7 +12,7 @@
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.0" />
+    <option name="PROJECT_TFM" value=".NETCoreApp,Version=v3.1" />
     <method v="2">
       <option name="Build" enabled="true" />
     </method>

.vscode/launch.json

@@ -6,13 +6,13 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.0/osu!.dll"
+                "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.1/osu!.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build osu! (Debug)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -23,13 +23,13 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.0/osu!.dll"
+                "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.1/osu!.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build osu! (Release)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -40,13 +40,13 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Game.Tests/bin/Debug/netcoreapp3.0/osu.Game.Tests.dll"
+                "${workspaceRoot}/osu.Game.Tests/bin/Debug/netcoreapp3.1/osu.Game.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build tests (Debug)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tests/bin/Debug/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tests/bin/Debug/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -56,13 +56,13 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Game.Tests/bin/Release/netcoreapp3.0/osu.Game.Tests.dll"
+                "${workspaceRoot}/osu.Game.Tests/bin/Release/netcoreapp3.1/osu.Game.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build tests (Release)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tests/bin/Release/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tests/bin/Release/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -73,14 +73,14 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.0/osu!.dll",
+                "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.1/osu!.dll",
                 "--tournament"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build osu! (Debug)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Debug/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -91,14 +91,14 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.0/osu!.dll",
+                "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.1/osu!.dll",
                 "--tournament"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build osu! (Release)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Desktop/bin/Release/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -109,14 +109,14 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.0/osu.Game.Tournament.Tests.dll",
+                "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.1/osu.Game.Tournament.Tests.dll",
                 "--tournament"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build tournament tests (Debug)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"
@@ -127,14 +127,14 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.0/osu.Game.Tournament.Tests.dll",
+                "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.1/osu.Game.Tournament.Tests.dll",
                 "--tournament"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build tournament tests (Release)",
             "linux": {
                 "env": {
-                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.0:${env:LD_LIBRARY_PATH}"
+                    "LD_LIBRARY_PATH": "${workspaceRoot}/osu.Game.Tournament.Tests/bin/Debug/netcoreapp3.1:${env:LD_LIBRARY_PATH}"
                 }
             },
             "console": "internalConsole"

.vscode/tasks.json

@@ -95,7 +95,7 @@
             "problemMatcher": "$msCompile"
         },
         {
-            "label": "Restore (netcoreapp3.0)",
+            "label": "Restore (netcoreapp3.1)",
             "type": "shell",
             "command": "dotnet",
             "args": [

README.md

@@ -21,9 +21,9 @@ Detailed changelogs are published on the [official osu! site](https://osu.ppy.sh
 
 ## Requirements
 
-- A desktop platform with the [.NET Core SDK 3.0](https://www.microsoft.com/net/learn/get-started) or higher installed.
+- A desktop platform with the [.NET Core 3.1 SDK](https://dotnet.microsoft.com/download) or higher installed.
 - When running on Linux, please have a system-wide FFmpeg installation available to support video decoding.
-- When running on Windows 7 or 8.1, **[additional prerequisites](https://docs.microsoft.com/en-us/dotnet/core/install/dependencies?tabs=netcore30&pivots=os-windows)** may be required to correctly run .NET Core applications if your operating system is not up-to-date with the latest service packs.
+- When running on Windows 7 or 8.1, **[additional prerequisites](https://docs.microsoft.com/en-us/dotnet/core/install/dependencies?tabs=netcore31&pivots=os-windows)** may be required to correctly run .NET Core applications if your operating system is not up-to-date with the latest service packs.
 - When developing with mobile, [Xamarin](https://docs.microsoft.com/en-us/xamarin/) is required, which is shipped together with Visual Studio or [Visual Studio for Mac](https://visualstudio.microsoft.com/vs/mac/).
 - When working with the codebase, we recommend using an IDE with intelligent code completion and syntax highlighting, such as [Visual Studio 2019+](https://visualstudio.microsoft.com/vs/), [JetBrains Rider](https://www.jetbrains.com/rider/) or [Visual Studio Code](https://code.visualstudio.com/).
 
@@ -35,7 +35,7 @@ If you are not interested in developing the game, you can still consume our [bin
 
 **Latest build:**
 
-| [Windows (x64)](https://github.com/ppy/osu/releases/latest/download/install.exe)  | [macOS 10.12+](https://github.com/ppy/osu/releases/latest/download/osu.app.zip) | [iOS(iOS 10+)](https://testflight.apple.com/join/2tLcjWlF) | [Android (5+)](https://github.com/ppy/osu/releases/latest/download/sh.ppy.osulazer.apk)
+| [Windows (x64)](https://github.com/ppy/osu/releases/latest/download/install.exe)  | [macOS 10.12+](https://github.com/ppy/osu/releases/latest/download/osu.app.zip) | [iOS(iOS 10+)](https://osu.ppy.sh/home/testflight) | [Android (5+)](https://github.com/ppy/osu/releases/latest/download/sh.ppy.osulazer.apk)
 | ------------- | ------------- | ------------- | ------------- |
 
 - **Linux** users are recommended to self-compile until we have official deployment in place.

osu.Android.props

@@ -54,6 +54,6 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1215.0" />
-    <PackageReference Include="ppy.osu.Framework.Android" Version="2019.1215.0" />
+    <PackageReference Include="ppy.osu.Framework.Android" Version="2019.1219.0" />
   </ItemGroup>
 </Project>

osu.Desktop/DiscordRichPresence.cs

@@ -45,8 +45,7 @@ namespace osu.Desktop
             };
 
             client.OnReady += onReady;
-            client.OnError += (_, e) => Logger.Log($"An error occurred with Discord RPC Client: {e.Code} {e.Message}", LoggingTarget.Network, LogLevel.Error);
+            client.OnError += (_, e) => Logger.Log($"An error occurred with Discord RPC Client: {e.Code} {e.Message}", LoggingTarget.Network);
-            client.OnConnectionFailed += (_, e) => Logger.Log($"An connection occurred with Discord RPC Client: {e.Type}", LoggingTarget.Network, LogLevel.Error);
 
             (user = provider.LocalUser.GetBoundCopy()).BindValueChanged(u =>
             {

osu.Desktop/osu.Desktop.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup Label="Project">
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <OutputType>WinExe</OutputType>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Description>click the circles. to the beat.</Description>

osu.Game.Rulesets.Catch.Tests.iOS/Application.cs

@@ -5,7 +5,7 @@ using UIKit;
 
 namespace osu.Game.Rulesets.Catch.Tests.iOS
 {
-    public class Application
+    public static class Application
     {
         public static void Main(string[] args)
         {

osu.Game.Rulesets.Catch.Tests/.vscode/launch.json

@@ -7,7 +7,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Catch.Tests.dll"
+                "${workspaceRoot}/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Catch.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Debug)",
@@ -20,7 +20,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Release/netcoreapp3.0/osu.Game.Rulesets.Catch.Tests.dll"
+                "${workspaceRoot}/bin/Release/netcoreapp3.1/osu.Game.Rulesets.Catch.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Release)",

osu.Game.Rulesets.Catch.Tests/osu.Game.Rulesets.Catch.Tests.csproj

@@ -9,7 +9,7 @@
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\osu.Game.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj" />

osu.Game.Rulesets.Mania.Tests.iOS/Application.cs

@@ -5,7 +5,7 @@ using UIKit;
 
 namespace osu.Game.Rulesets.Mania.Tests.iOS
 {
-    public class Application
+    public static class Application
     {
         public static void Main(string[] args)
         {

osu.Game.Rulesets.Mania.Tests/.vscode/launch.json

@@ -7,7 +7,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Mania.Tests.dll"
+                "${workspaceRoot}/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Mania.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Debug)",
@@ -20,7 +20,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Release/netcoreapp3.0/osu.Game.Rulesets.Mania.Tests.dll"
+                "${workspaceRoot}/bin/Release/netcoreapp3.1/osu.Game.Rulesets.Mania.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Release)",

osu.Game.Rulesets.Mania.Tests/osu.Game.Rulesets.Mania.Tests.csproj

@@ -9,7 +9,7 @@
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\osu.Game.Rulesets.Mania\osu.Game.Rulesets.Mania.csproj" />

osu.Game.Rulesets.Osu.Tests.iOS/Application.cs

@@ -5,7 +5,7 @@ using UIKit;
 
 namespace osu.Game.Rulesets.Osu.Tests.iOS
 {
-    public class Application
+    public static class Application
     {
         public static void Main(string[] args)
         {

osu.Game.Rulesets.Osu.Tests/.vscode/launch.json

@@ -7,7 +7,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Osu.Tests.dll"
+                "${workspaceRoot}/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Osu.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Debug)",
@@ -20,7 +20,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Release/netcoreapp3.0/osu.Game.Rulesets.Osu.Tests.dll"
+                "${workspaceRoot}/bin/Release/netcoreapp3.1/osu.Game.Rulesets.Osu.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Release)",

osu.Game.Rulesets.Osu.Tests/osu.Game.Rulesets.Osu.Tests.csproj

@@ -9,7 +9,7 @@
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj" />

osu.Game.Rulesets.Taiko.Tests.iOS/Application.cs

@@ -5,7 +5,7 @@ using UIKit;
 
 namespace osu.Game.Rulesets.Taiko.Tests.iOS
 {
-    public class Application
+    public static class Application
     {
         public static void Main(string[] args)
         {

osu.Game.Rulesets.Taiko.Tests/.vscode/launch.json

@@ -7,7 +7,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Debug/netcoreapp3.0/osu.Game.Rulesets.Taiko.Tests.dll"
+                "${workspaceRoot}/bin/Debug/netcoreapp3.1/osu.Game.Rulesets.Taiko.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Debug)",
@@ -20,7 +20,7 @@
             "request": "launch",
             "program": "dotnet",
             "args": [
-                "${workspaceRoot}/bin/Release/netcoreapp3.0/osu.Game.Rulesets.Taiko.Tests.dll"
+                "${workspaceRoot}/bin/Release/netcoreapp3.1/osu.Game.Rulesets.Taiko.Tests.dll"
             ],
             "cwd": "${workspaceRoot}",
             "preLaunchTask": "Build (Release)",

osu.Game.Rulesets.Taiko.Tests/osu.Game.Rulesets.Taiko.Tests.csproj

@@ -9,7 +9,7 @@
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\osu.Game.Rulesets.Taiko\osu.Game.Rulesets.Taiko.csproj" />

osu.Game.Tests.iOS/Application.cs

@@ -5,7 +5,7 @@ using UIKit;
 
 namespace osu.Game.Tests.iOS
 {
-    public class Application
+    public static class Application
     {
         public static void Main(string[] args)
         {

osu.Game.Tests/Beatmaps/Formats/LegacyStoryboardDecoderTest.cs

@@ -71,7 +71,7 @@ namespace osu.Game.Tests.Beatmaps.Formats
                 Assert.AreEqual(new Vector2(320, 240), sprite.InitialPosition);
                 Assert.IsTrue(sprite.IsDrawable);
                 Assert.AreEqual(Anchor.Centre, sprite.Origin);
-                Assert.AreEqual("SB/black.jpg", sprite.Path);
+                Assert.AreEqual("SB/lyric/ja-21.png", sprite.Path);
 
                 var animation = background.Elements.OfType<StoryboardAnimation>().First();
                 Assert.NotNull(animation);

osu.Game.Tests/Visual/Editor/TestSceneEditorComposeTimeline.cs

@@ -68,8 +68,11 @@ namespace osu.Game.Tests.Visual.Editor
         {
             private readonly Drawable marker;
 
-            private readonly IBindable<WorkingBeatmap> beatmap = new Bindable<WorkingBeatmap>();
+            [Resolved]
-            private IAdjustableClock adjustableClock;
+            private IBindable<WorkingBeatmap> beatmap { get; set; }
+
+            [Resolved]
+            private IAdjustableClock adjustableClock { get; set; }
 
             public AudioVisualiser()
             {
@@ -91,13 +94,6 @@ namespace osu.Game.Tests.Visual.Editor
                 };
             }
 
-            [BackgroundDependencyLoader]
-            private void load(IAdjustableClock adjustableClock, IBindable<WorkingBeatmap> beatmap)
-            {
-                this.adjustableClock = adjustableClock;
-                this.beatmap.BindTo(beatmap);
-            }
-
             protected override void Update()
             {
                 base.Update();

osu.Game.Tests/WaveformTestBeatmap.cs

@@ -20,26 +20,24 @@ namespace osu.Game.Tests
     /// </summary>
     public class WaveformTestBeatmap : WorkingBeatmap
     {
-        private readonly ZipArchiveReader reader;
-        private readonly Stream stream;
         private readonly ITrackStore trackStore;
 
         public WaveformTestBeatmap(AudioManager audioManager)
             : base(new BeatmapInfo(), audioManager)
         {
-            stream = TestResources.GetTestBeatmapStream();
+            trackStore = audioManager.GetTrackStore(getZipReader());
-            reader = new ZipArchiveReader(stream);
-            trackStore = audioManager.GetTrackStore(reader);
         }
 
         protected override void Dispose(bool isDisposing)
         {
             base.Dispose(isDisposing);
-            stream?.Dispose();
-            reader?.Dispose();
             trackStore?.Dispose();
         }
 
+        private Stream getStream() => TestResources.GetTestBeatmapStream();
+
+        private ZipArchiveReader getZipReader() => new ZipArchiveReader(getStream());
+
         protected override IBeatmap GetBeatmap() => createTestBeatmap();
 
         protected override Texture GetBackground() => null;
@@ -50,15 +48,23 @@ namespace osu.Game.Tests
 
         protected override Track GetTrack() => trackStore.Get(firstAudioFile);
 
-        private string firstAudioFile => reader.Filenames.First(f => f.EndsWith(".mp3"));
+        private string firstAudioFile
-
+        {
-        private Stream getBeatmapStream() => reader.GetStream(reader.Filenames.First(f => f.EndsWith(".osu")));
+            get
+            {
+                using (var reader = getZipReader())
+                    return reader.Filenames.First(f => f.EndsWith(".mp3"));
+            }
+        }
 
         private Beatmap createTestBeatmap()
         {
-            using (var beatmapStream = getBeatmapStream())
+            using (var reader = getZipReader())
-            using (var beatmapReader = new LineBufferedReader(beatmapStream))
+            {
-                return Decoder.GetDecoder<Beatmap>(beatmapReader).Decode(beatmapReader);
+                using (var beatmapStream = reader.GetStream(reader.Filenames.First(f => f.EndsWith(".osu"))))
+                using (var beatmapReader = new LineBufferedReader(beatmapStream))
+                    return Decoder.GetDecoder<Beatmap>(beatmapReader).Decode(beatmapReader);
+            }
         }
     }
 }

osu.Game.Tests/osu.Game.Tests.csproj

@@ -10,7 +10,7 @@
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\osu.Game.Rulesets.Osu\osu.Game.Rulesets.Osu.csproj" />

osu.Game.Tournament.Tests/osu.Game.Tournament.Tests.csproj

@@ -11,7 +11,7 @@
   </ItemGroup>
   <PropertyGroup Label="Project">
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup Label="Project References">
     <ProjectReference Include="..\osu.Game.Rulesets.Catch\osu.Game.Rulesets.Catch.csproj" />

osu.Game/Beatmaps/Formats/LegacyStoryboardDecoder.cs

@@ -5,7 +5,6 @@ using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.Linq;
 using osuTK;
 using osuTK.Graphics;
 using osu.Framework.Extensions;
@@ -42,10 +41,6 @@ namespace osu.Game.Beatmaps.Formats
         {
             this.storyboard = storyboard;
             base.ParseStreamInto(stream, storyboard);
-
-            // OrderBy is used to guarantee that the parsing order of elements with equal start times is maintained (stably-sorted)
-            foreach (StoryboardLayer layer in storyboard.Layers)
-                layer.Elements = layer.Elements.OrderBy(h => h.StartTime).ToList();
         }
 
         protected override void ParseLine(Storyboard storyboard, Section section, string line)

osu.Game/Overlays/Settings/SettingsItem.cs

@@ -113,6 +113,7 @@ namespace osu.Game.Overlays.Settings
                     bindable = value;
                     bindable.ValueChanged += _ => UpdateState();
                     bindable.DisabledChanged += _ => UpdateState();
+                    bindable.DefaultChanged += _ => UpdateState();
                     UpdateState();
                 }
             }

osu.Game/Overlays/SocialOverlay.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using osu.Framework.Bindables;
@@ -15,6 +16,8 @@ using osu.Game.Online.API.Requests;
 using osu.Game.Overlays.SearchableList;
 using osu.Game.Overlays.Social;
 using osu.Game.Users;
+using System.Threading;
+using osu.Framework.Allocation;
 using osu.Framework.Threading;
 
 namespace osu.Game.Overlays
@@ -31,17 +34,20 @@ namespace osu.Game.Overlays
         protected override SearchableListHeader<SocialTab> CreateHeader() => new Header();
         protected override SearchableListFilterControl<SocialSortCriteria, SortDirection> CreateFilterControl() => new FilterControl();
 
-        private IEnumerable<User> users;
+        private User[] users = Array.Empty<User>();
 
-        public IEnumerable<User> Users
+        public User[] Users
         {
             get => users;
             set
             {
-                if (ReferenceEquals(users, value))
+                if (users == value)
                     return;
 
-                users = value?.ToList();
+                users = value ?? Array.Empty<User>();
+
+                if (LoadState >= LoadState.Ready)
+                    recreatePanels();
             }
         }
 
@@ -67,11 +73,10 @@ namespace osu.Game.Overlays
             };
 
             Header.Tabs.Current.ValueChanged += _ => queueUpdate();
+            Filter.Tabs.Current.ValueChanged += _ => onFilterUpdate();
 
-            Filter.Tabs.Current.ValueChanged += _ => queueUpdate();
+            Filter.DisplayStyleControl.DisplayStyle.ValueChanged += _ => recreatePanels();
-
+            Filter.DisplayStyleControl.Dropdown.Current.ValueChanged += _ => recreatePanels();
-            Filter.DisplayStyleControl.DisplayStyle.ValueChanged += style => recreatePanels(style.NewValue);
-            Filter.DisplayStyleControl.Dropdown.Current.ValueChanged += _ => queueUpdate();
 
             currentQuery.BindTo(Filter.Search.Current);
             currentQuery.ValueChanged += query =>
@@ -85,6 +90,12 @@ namespace osu.Game.Overlays
             };
         }
 
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            recreatePanels();
+        }
+
         private APIRequest getUsersRequest;
 
         private readonly Bindable<string> currentQuery = new Bindable<string>();
@@ -93,6 +104,8 @@ namespace osu.Game.Overlays
 
         private void queueUpdate() => Scheduler.AddOnce(updateSearch);
 
+        private CancellationTokenSource loadCancellation;
+
         private void updateSearch()
         {
             queryChangedDebounce?.Cancel();
@@ -102,7 +115,6 @@ namespace osu.Game.Overlays
 
             Users = null;
             clearPanels();
-            loading.Hide();
             getUsersRequest?.Cancel();
 
             if (API?.IsLoggedIn != true)
@@ -112,26 +124,43 @@ namespace osu.Game.Overlays
             {
                 case SocialTab.Friends:
                     var friendRequest = new GetFriendsRequest(); // TODO filter arguments?
-                    friendRequest.Success += updateUsers;
+                    friendRequest.Success += users => Users = users.ToArray();
                     API.Queue(getUsersRequest = friendRequest);
                     break;
 
                 default:
                     var userRequest = new GetUsersRequest(); // TODO filter arguments!
-                    userRequest.Success += res => updateUsers(res.Users.Select(r => r.User));
+                    userRequest.Success += res => Users = res.Users.Select(r => r.User).ToArray();
                     API.Queue(getUsersRequest = userRequest);
                     break;
             }
-
-            loading.Show();
         }
 
-        private void recreatePanels(PanelDisplayStyle displayStyle)
+        private void recreatePanels()
         {
             clearPanels();
 
             if (Users == null)
+            {
+                loading.Hide();
                 return;
+            }
+
+            IEnumerable<User> sortedUsers = Users;
+
+            switch (Filter.Tabs.Current.Value)
+            {
+                case SocialSortCriteria.Location:
+                    sortedUsers = sortedUsers.OrderBy(u => u.Country.FullName);
+                    break;
+
+                case SocialSortCriteria.Name:
+                    sortedUsers = sortedUsers.OrderBy(u => u.Username);
+                    break;
+            }
+
+            if (Filter.DisplayStyleControl.Dropdown.Current.Value == SortDirection.Descending)
+                sortedUsers = sortedUsers.Reverse();
 
             var newPanels = new FillFlowContainer<SocialPanel>
             {
@@ -139,11 +168,11 @@ namespace osu.Game.Overlays
                 AutoSizeAxes = Axes.Y,
                 Spacing = new Vector2(10f),
                 Margin = new MarginPadding { Top = 10 },
-                ChildrenEnumerable = Users.Select(u =>
+                ChildrenEnumerable = sortedUsers.Select(u =>
                 {
                     SocialPanel panel;
 
-                    switch (displayStyle)
+                    switch (Filter.DisplayStyleControl.DisplayStyle.Value)
                     {
                         case PanelDisplayStyle.Grid:
                             panel = new SocialGridPanel(u)
@@ -169,19 +198,28 @@ namespace osu.Game.Overlays
                 if (panels != null)
                     ScrollFlow.Remove(panels);
 
+                loading.Hide();
                 ScrollFlow.Add(panels = newPanels);
-            });
+            }, (loadCancellation = new CancellationTokenSource()).Token);
         }
 
-        private void updateUsers(IEnumerable<User> newUsers)
+        private void onFilterUpdate()
         {
-            Users = newUsers;
+            if (Filter.Tabs.Current.Value == SocialSortCriteria.Rank)
-            loading.Hide();
+            {
-            recreatePanels(Filter.DisplayStyleControl.DisplayStyle.Value);
+                queueUpdate();
+                return;
+            }
+
+            recreatePanels();
         }
 
         private void clearPanels()
         {
+            loading.Show();
+
+            loadCancellation?.Cancel();
+
             if (panels != null)
             {
                 panels.Expire();

osu.Game/Scoring/ScoreInfo.cs

@@ -89,7 +89,7 @@ namespace osu.Game.Scoring
                 if (mods == null)
                     return null;
 
-                return modsJson = JsonConvert.SerializeObject(mods);
+                return modsJson = JsonConvert.SerializeObject(mods.Select(m => new DeserializedMod { Acronym = m.Acronym }));
             }
             set
             {

osu.Game/Screens/Play/KeyCounterDisplay.cs

@@ -43,6 +43,11 @@ namespace osu.Game.Screens.Play
         private void load(OsuConfigManager config)
         {
             config.BindWith(OsuSetting.KeyOverlay, configVisibility);
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
 
             Visible.BindValueChanged(_ => updateVisibility());
             configVisibility.BindValueChanged(_ => updateVisibility(), true);

osu.Game/Storyboards/CommandTimeline.cs

@@ -1,7 +1,6 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
-using osu.Framework.Caching;
 using osu.Framework.Graphics;
 using System;
 using System.Collections.Generic;
@@ -12,27 +11,35 @@ namespace osu.Game.Storyboards
     public class CommandTimeline<T> : ICommandTimeline
     {
         private readonly List<TypedCommand> commands = new List<TypedCommand>();
+
         public IEnumerable<TypedCommand> Commands => commands.OrderBy(c => c.StartTime);
+
         public bool HasCommands => commands.Count > 0;
 
-        private readonly Cached<double> startTimeBacking = new Cached<double>();
+        public double StartTime { get; private set; } = double.MaxValue;
-        public double StartTime => startTimeBacking.IsValid ? startTimeBacking : startTimeBacking.Value = HasCommands ? commands.Min(c => c.StartTime) : double.MinValue;
+        public double EndTime { get; private set; } = double.MinValue;
 
-        private readonly Cached<double> endTimeBacking = new Cached<double>();
+        public T StartValue { get; private set; }
-        public double EndTime => endTimeBacking.IsValid ? endTimeBacking : endTimeBacking.Value = HasCommands ? commands.Max(c => c.EndTime) : double.MaxValue;
+        public T EndValue { get; private set; }
-
-        public T StartValue => HasCommands ? commands.OrderBy(c => c.StartTime).First().StartValue : default;
-        public T EndValue => HasCommands ? commands.OrderByDescending(c => c.EndTime).First().EndValue : default;
 
         public void Add(Easing easing, double startTime, double endTime, T startValue, T endValue)
         {
             if (endTime < startTime)
                 return;
 
-            commands.Add(new TypedCommand { Easing = easing, StartTime = startTime, EndTime = endTime, StartValue = startValue, EndValue = endValue, });
+            commands.Add(new TypedCommand { Easing = easing, StartTime = startTime, EndTime = endTime, StartValue = startValue, EndValue = endValue });
 
-            startTimeBacking.Invalidate();
+            if (startTime < StartTime)
-            endTimeBacking.Invalidate();
+            {
+                StartValue = startValue;
+                StartTime = startTime;
+            }
+
+            if (endTime > EndTime)
+            {
+                EndValue = endValue;
+                EndTime = endTime;
+            }
         }
 
         public override string ToString()

osu.Game/Storyboards/CommandTimelineGroup.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System;
 using osuTK;
 using osuTK.Graphics;
 using osu.Framework.Graphics;
@@ -25,28 +26,52 @@ namespace osu.Game.Storyboards
         public CommandTimeline<bool> FlipH = new CommandTimeline<bool>();
         public CommandTimeline<bool> FlipV = new CommandTimeline<bool>();
 
+        private readonly ICommandTimeline[] timelines;
+
+        public CommandTimelineGroup()
+        {
+            timelines = new ICommandTimeline[]
+            {
+                X,
+                Y,
+                Scale,
+                VectorScale,
+                Rotation,
+                Colour,
+                Alpha,
+                BlendingParameters,
+                FlipH,
+                FlipV
+            };
+        }
+
         [JsonIgnore]
-        public IEnumerable<ICommandTimeline> Timelines
+        public double CommandsStartTime
         {
             get
             {
-                yield return X;
+                double min = double.MaxValue;
-                yield return Y;
+
-                yield return Scale;
+                for (int i = 0; i < timelines.Length; i++)
-                yield return Rotation;
+                    min = Math.Min(min, timelines[i].StartTime);
-                yield return Colour;
+
-                yield return Alpha;
+                return min;
-                yield return BlendingParameters;
-                yield return FlipH;
-                yield return FlipV;
             }
         }
 
         [JsonIgnore]
-        public double CommandsStartTime => Timelines.Where(t => t.HasCommands).Min(t => t.StartTime);
+        public double CommandsEndTime
+        {
+            get
+            {
+                double max = double.MinValue;
 
-        [JsonIgnore]
+                for (int i = 0; i < timelines.Length; i++)
-        public double CommandsEndTime => Timelines.Where(t => t.HasCommands).Max(t => t.EndTime);
+                    max = Math.Max(max, timelines[i].EndTime);
+
+                return max;
+            }
+        }
 
         [JsonIgnore]
         public double CommandsDuration => CommandsEndTime - CommandsStartTime;
@@ -61,7 +86,19 @@ namespace osu.Game.Storyboards
         public double Duration => EndTime - StartTime;
 
         [JsonIgnore]
-        public bool HasCommands => Timelines.Any(t => t.HasCommands);
+        public bool HasCommands
+        {
+            get
+            {
+                for (int i = 0; i < timelines.Length; i++)
+                {
+                    if (timelines[i].HasCommands)
+                        return true;
+                }
+
+                return false;
+            }
+        }
 
         public virtual IEnumerable<CommandTimeline<T>.TypedCommand> GetCommands<T>(CommandTimelineSelector<T> timelineSelector, double offset = 0)
         {

osu.Game/Storyboards/StoryboardSprite.cs

@@ -7,6 +7,7 @@ using osu.Game.Storyboards.Drawables;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using JetBrains.Annotations;
 
 namespace osu.Game.Storyboards
 {
@@ -63,50 +64,56 @@ namespace osu.Game.Storyboards
 
         public void ApplyTransforms(Drawable drawable, IEnumerable<Tuple<CommandTimelineGroup, double>> triggeredGroups = null)
         {
-            applyCommands(drawable, getCommands(g => g.X, triggeredGroups), (d, value) => d.X = value, (d, value, duration, easing) => d.MoveToX(value, duration, easing));
+            // For performance reasons, we need to apply the commands in order by start time. Not doing so will cause many functions to be interleaved, resulting in O(n^2) complexity.
-            applyCommands(drawable, getCommands(g => g.Y, triggeredGroups), (d, value) => d.Y = value, (d, value, duration, easing) => d.MoveToY(value, duration, easing));
+            // To achieve this, commands are "generated" as pairs of (command, initFunc, transformFunc) and batched into a contiguous list
-            applyCommands(drawable, getCommands(g => g.Scale, triggeredGroups), (d, value) => d.Scale = new Vector2(value), (d, value, duration, easing) => d.ScaleTo(value, duration, easing));
+            // The list is then stably-sorted (to preserve command order), and applied to the drawable sequentially.
-            applyCommands(drawable, getCommands(g => g.Rotation, triggeredGroups), (d, value) => d.Rotation = value, (d, value, duration, easing) => d.RotateTo(value, duration, easing));
+
-            applyCommands(drawable, getCommands(g => g.Colour, triggeredGroups), (d, value) => d.Colour = value, (d, value, duration, easing) => d.FadeColour(value, duration, easing));
+            List<IGeneratedCommand> generated = new List<IGeneratedCommand>();
-            applyCommands(drawable, getCommands(g => g.Alpha, triggeredGroups), (d, value) => d.Alpha = value, (d, value, duration, easing) => d.FadeTo(value, duration, easing));
+
-            applyCommands(drawable, getCommands(g => g.BlendingParameters, triggeredGroups), (d, value) => d.Blending = value, (d, value, duration, easing) => d.TransformBlendingMode(value, duration),
+            generateCommands(generated, getCommands(g => g.X, triggeredGroups), (d, value) => d.X = value, (d, value, duration, easing) => d.MoveToX(value, duration, easing));
+            generateCommands(generated, getCommands(g => g.Y, triggeredGroups), (d, value) => d.Y = value, (d, value, duration, easing) => d.MoveToY(value, duration, easing));
+            generateCommands(generated, getCommands(g => g.Scale, triggeredGroups), (d, value) => d.Scale = new Vector2(value), (d, value, duration, easing) => d.ScaleTo(value, duration, easing));
+            generateCommands(generated, getCommands(g => g.Rotation, triggeredGroups), (d, value) => d.Rotation = value, (d, value, duration, easing) => d.RotateTo(value, duration, easing));
+            generateCommands(generated, getCommands(g => g.Colour, triggeredGroups), (d, value) => d.Colour = value, (d, value, duration, easing) => d.FadeColour(value, duration, easing));
+            generateCommands(generated, getCommands(g => g.Alpha, triggeredGroups), (d, value) => d.Alpha = value, (d, value, duration, easing) => d.FadeTo(value, duration, easing));
+            generateCommands(generated, getCommands(g => g.BlendingParameters, triggeredGroups), (d, value) => d.Blending = value, (d, value, duration, easing) => d.TransformBlendingMode(value, duration),
                 false);
 
             if (drawable is IVectorScalable vectorScalable)
             {
-                applyCommands(drawable, getCommands(g => g.VectorScale, triggeredGroups), (d, value) => vectorScalable.VectorScale = value,
+                generateCommands(generated, getCommands(g => g.VectorScale, triggeredGroups), (d, value) => vectorScalable.VectorScale = value,
                     (d, value, duration, easing) => vectorScalable.VectorScaleTo(value, duration, easing));
             }
 
             if (drawable is IFlippable flippable)
             {
-                applyCommands(drawable, getCommands(g => g.FlipH, triggeredGroups), (d, value) => flippable.FlipH = value, (d, value, duration, easing) => flippable.TransformFlipH(value, duration),
+                generateCommands(generated, getCommands(g => g.FlipH, triggeredGroups), (d, value) => flippable.FlipH = value, (d, value, duration, easing) => flippable.TransformFlipH(value, duration),
                     false);
-                applyCommands(drawable, getCommands(g => g.FlipV, triggeredGroups), (d, value) => flippable.FlipV = value, (d, value, duration, easing) => flippable.TransformFlipV(value, duration),
+                generateCommands(generated, getCommands(g => g.FlipV, triggeredGroups), (d, value) => flippable.FlipV = value, (d, value, duration, easing) => flippable.TransformFlipV(value, duration),
                     false);
             }
+
+            foreach (var command in generated.OrderBy(g => g.StartTime))
+                command.ApplyTo(drawable);
         }
 
-        private void applyCommands<T>(Drawable drawable, IEnumerable<CommandTimeline<T>.TypedCommand> commands, DrawablePropertyInitializer<T> initializeProperty, DrawableTransformer<T> transform,
+        private void generateCommands<T>(List<IGeneratedCommand> resultList, IEnumerable<CommandTimeline<T>.TypedCommand> commands,
-                                      bool alwaysInitialize = true)
+                                         DrawablePropertyInitializer<T> initializeProperty, DrawableTransformer<T> transform, bool alwaysInitialize = true)
-            where T : struct
         {
-            var initialized = false;
+            bool initialized = false;
 
-            foreach (var command in commands.OrderBy(l => l))
+            foreach (var command in commands)
             {
+                DrawablePropertyInitializer<T> initFunc = null;
+
                 if (!initialized)
                 {
                     if (alwaysInitialize || command.StartTime == command.EndTime)
-                        initializeProperty.Invoke(drawable, command.StartValue);
+                        initFunc = initializeProperty;
                     initialized = true;
                 }
 
-                using (drawable.BeginAbsoluteSequence(command.StartTime))
+                resultList.Add(new GeneratedCommand<T>(command, initFunc, transform));
-                {
-                    transform(drawable, command.StartValue, 0, Easing.None);
-                    transform(drawable, command.EndValue, command.Duration, command.Easing);
-                }
             }
         }
 
@@ -127,5 +134,39 @@ namespace osu.Game.Storyboards
 
         public override string ToString()
             => $"{Path}, {Origin}, {InitialPosition}";
+
+        private interface IGeneratedCommand
+        {
+            double StartTime { get; }
+
+            void ApplyTo(Drawable drawable);
+        }
+
+        private readonly struct GeneratedCommand<T> : IGeneratedCommand
+        {
+            public double StartTime => command.StartTime;
+
+            private readonly DrawablePropertyInitializer<T> initializeProperty;
+            private readonly DrawableTransformer<T> transform;
+            private readonly CommandTimeline<T>.TypedCommand command;
+
+            public GeneratedCommand([NotNull] CommandTimeline<T>.TypedCommand command, [CanBeNull] DrawablePropertyInitializer<T> initializeProperty, [NotNull] DrawableTransformer<T> transform)
+            {
+                this.command = command;
+                this.initializeProperty = initializeProperty;
+                this.transform = transform;
+            }
+
+            public void ApplyTo(Drawable drawable)
+            {
+                initializeProperty?.Invoke(drawable, command.StartValue);
+
+                using (drawable.BeginAbsoluteSequence(command.StartTime))
+                {
+                    transform(drawable, command.StartValue, 0, Easing.None);
+                    transform(drawable, command.EndValue, command.Duration, command.Easing);
+                }
+            }
+        }
     }
 }

osu.Game/Updater/UpdateManager.cs

@@ -11,7 +11,10 @@ using osu.Game.Overlays.Notifications;
 
 namespace osu.Game.Updater
 {
-    public abstract class UpdateManager : CompositeDrawable
+    /// <summary>
+    /// An update manager which only shows notifications after an update completes.
+    /// </summary>
+    public class UpdateManager : CompositeDrawable
     {
         [Resolved]
         private OsuConfigManager config { get; set; }

osu.Game/osu.Game.csproj

@@ -23,7 +23,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.6" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1215.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.1215.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2019.1219.0" />
     <PackageReference Include="Sentry" Version="1.2.0" />
     <PackageReference Include="SharpCompress" Version="0.24.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />

osu.iOS.props

@@ -74,7 +74,7 @@
   </ItemGroup>
   <ItemGroup Label="Package References">
     <PackageReference Include="ppy.osu.Game.Resources" Version="2019.1215.0" />
-    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.1215.0" />
+    <PackageReference Include="ppy.osu.Framework.iOS" Version="2019.1219.0" />
   </ItemGroup>
   <!-- Xamarin.iOS does not automatically handle transitive dependencies from NuGet packages. -->
   <ItemGroup Label="Transitive Dependencies">
@@ -82,7 +82,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.2.6" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.2.6" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
-    <PackageReference Include="ppy.osu.Framework" Version="2019.1215.0" />
+    <PackageReference Include="ppy.osu.Framework" Version="2019.1219.0" />
     <PackageReference Include="SharpCompress" Version="0.24.0" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="SharpRaven" Version="2.4.0" />

osu.iOS/Application.cs

@@ -5,7 +5,7 @@ using UIKit;
 
 namespace osu.iOS
 {
-    public class Application
+    public static class Application
     {
         public static void Main(string[] args)
         {

osu.iOS/OsuGameIOS.cs

@@ -4,11 +4,19 @@
 using System;
 using Foundation;
 using osu.Game;
+using osu.Game.Updater;
 
 namespace osu.iOS
 {
     public class OsuGameIOS : OsuGame
     {
         public override Version AssemblyVersion => new Version(NSBundle.MainBundle.InfoDictionary["CFBundleVersion"].ToString());
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            Add(new UpdateManager());
+        }
     }
 }