diff --git a/NuGet.Config b/NuGet.Config
index b0cec7b51e..735c63e5af 100644
--- a/NuGet.Config
+++ b/NuGet.Config
@@ -1,14 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
-    <!-- OmniSharp-Roslyn-CI feed is a mirror of following sources. -->
-    <add key="aspnet" value="https://www.myget.org/F/aspnetcidev/api/v3/index.json" />
-    <add key="dotnet-core" value="https://www.myget.org/F/dotnet-core/api/v3/index.json" />
-    <add key="dotnet-cli" value="https://dotnet.myget.org/F/dotnet-cli/api/v3/index.json" />
-    <add key="dotnet-buildtools" value="https://dotnet.myget.org/F/dotnet-buildtools/api/v3/index.json" />
-    <add key="nuget" value="https://www.myget.org/F/nugetbuild/api/v3/index.json" />
-    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
-    <clear />
-    <add key="omnisharp" value="https://www.myget.org/F/omnisharp-roslyn-ci/api/v3/index.json" />
+    <clear/>
+    <add key="AspNetVNext" value="https://www.myget.org/F/aspnetcidev/api/v3/index.json" />
+    <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
   </packageSources>
 </configuration>
diff --git a/depversion.json b/depversion.json
index c9ec793397..d9a9e8f7b3 100644
--- a/depversion.json
+++ b/depversion.json
@@ -1,16 +1,67 @@
 {
-  "NETStandard.Library": "1.5.0-rc2-*",
-  
-  "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*",
-  "Microsoft.DotNet.InternalAbstractions": "1.0.0-beta-*",
-  "Microsoft.Extensions.DependencyModel": "1.0.0-beta-*",
-  
-  "System.Diagnostics.Process": "4.1.0-rc2-*",
-  "System.IO.FileSystem.Watcher": "4.0.0-rc2-*",
-  "System.Threading.Thread": "4.0.0-rc2-*",
-  "System.Dynamic.Runtime": "4.0.11-rc2-*",
-  "System.Runtime.Serialization.Primitives": "4.1.0-rc2-*",
-  "System.Linq.Parallel": "4.0.1-rc2-*",
-  "System.Threading.Tasks.Parallel": "4.0.1-rc2-*",
-  "System.Security.Cryptography.Algorithms": "4.1.0-rc2-*"
+  "NETStandard.Library": "1.5.0-rc2-23931",
+
+  "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202",
+  "Microsoft.DotNet.InternalAbstractions": "1.0.0-beta-002202",
+  "Microsoft.Extensions.DependencyModel": "1.0.0-beta-002202",
+
+  "System.Diagnostics.Process": "4.1.0-rc2-23931",
+  "System.Dynamic.Runtime": "4.0.11-rc2-23931",
+  "System.IO.Compression": "4.1.0-rc2-23931",
+  "System.IO.FileSystem.Watcher": "4.0.0-rc2-23931",
+  "System.Linq.Expressions": "4.0.11-rc2-23931",
+  "System.Linq.Parallel": "4.0.1-rc2-23931",
+  "System.Reflection.TypeExtensions": "4.1.0-rc2-23931",
+  "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931",
+  "System.Security.Cryptography.Algorithms": "4.1.0-rc2-23931",
+  "System.Threading.Tasks.Parallel": "4.0.1-rc2-23931",
+  "System.Threading.Thread": "4.0.0-rc2-23931",
+  "System.Threading.ThreadPool": "4.0.10-rc2-23931",
+  "System.Xml.XDocument": "4.0.11-rc2-23931",
+
+  "System.Reflection.Metadata": "1.3.0-rc2-23931",
+
+  "Microsoft.Extensions.Caching.Memory": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Configuration": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Configuration.Binder": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.DependencyInjection.Abstractions": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.FileSystemGlobbing": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Logging.Abstractions": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Options": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0-rc2-20447",
+  "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20447",
+
+  "Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-20447",
+  "Microsoft.AspNetCore.Hosting": "1.0.0-rc2-20447",
+  "Microsoft.AspNetCore.Http.Features": "1.0.0-rc2-20447",
+  "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-20447",
+
+  "Microsoft.CodeAnalysis": "1.3.0-beta1-20160321-04",
+  "Microsoft.CodeAnalysis.Common": "1.3.0-beta1-20160321-04",
+  "Microsoft.CodeAnalysis.CSharp": "1.3.0-beta1-20160321-04",
+  "Microsoft.CodeAnalysis.CSharp.Features": "1.3.0-beta1-20160321-04",
+  "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04",
+  "Microsoft.CodeAnalysis.VisualBasic.Workspaces": "1.3.0-beta1-20160321-04",
+
+  "Microsoft.Composition": "1.0.30",
+  "Microsoft.Web.Xdt": "2.1.1",
+
+  "dotnet-test-xunit": "1.0.0-dev-128011-22",
+  "xunit": "2.1.0",
+  "xunit.runner.console": "2.1.0",
+
+  "NuGet.Configuration": "3.5.0-beta-1123",
+  "NuGet.Core": "2.10.1",
+  "NuGet.Protocol.Core.v2": "3.3.0",
+  "NuGet.Protocol.Core.v3": "3.3.0",
+  "NuGet.Packaging": "3.5.0-beta-1123",
+  "NuGet.Packaging.Core": "3.5.0-beta-1123",
+
+  "ScriptCs.Hosting": "0.14.1",
+
+  "Newtonsoft.Json": "8.0.3",
+
+  "ICSharpCode.NRefactory": "6.0.0-alpha3"
 }
diff --git a/src/OmniSharp.Abstractions/project.json b/src/OmniSharp.Abstractions/project.json
index c37f28badc..f1e1edb2ae 100644
--- a/src/OmniSharp.Abstractions/project.json
+++ b/src/OmniSharp.Abstractions/project.json
@@ -5,15 +5,16 @@
     "preserveCompilationContext": true
   },
   "dependencies": {
-    "Newtonsoft.Json": "8.0.2",
-    "Microsoft.CodeAnalysis": "1.1.1",
+    "Newtonsoft.Json": "8.0.3",
+    "Microsoft.CodeAnalysis": "1.3.0-beta1-20160321-04",
     "Microsoft.Composition": "1.0.30",
-    "Microsoft.Extensions.Caching.Memory": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Configuration": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Configuration.Binder": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.FileSystemGlobbing": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20143"
+    "Microsoft.Extensions.Caching.Memory": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Configuration": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Configuration.Binder": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.FileSystemGlobbing": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20448",
+    "System.Reflection.Metadata": "1.3.0-rc2-23931"
   },
   "frameworks": {
     "net451": {
@@ -38,10 +39,11 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "System.Diagnostics.Process": "4.1.0-rc2-*",
-        "System.IO.FileSystem.Watcher": "4.0.0-rc2-*",
-        "System.Threading.Thread": "4.0.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Diagnostics.Process": "4.1.0-rc2-23931",
+        "System.Dynamic.Runtime": "4.0.11-rc2-23931",
+        "System.IO.FileSystem.Watcher": "4.0.0-rc2-23931",
+        "System.Threading.Thread": "4.0.0-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.Bootstrap/project.json b/src/OmniSharp.Bootstrap/project.json
index dd91f938fa..bf35eae34e 100644
--- a/src/OmniSharp.Bootstrap/project.json
+++ b/src/OmniSharp.Bootstrap/project.json
@@ -6,8 +6,8 @@
   },
   "dependencies": {
     "Microsoft.Composition": "1.0.30",
-    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20143",
-    "Newtonsoft.Json": "8.0.2"
+    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20448",
+    "Newtonsoft.Json": "8.0.3"
   },
   "commands": {
     "omnisharp.bootstrap": "run"
@@ -25,9 +25,11 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "System.Dynamic.Runtime": "4.0.11-rc2-*",
-        "System.Security.Cryptography.Algorithms": "4.1.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Dynamic.Runtime": "4.0.11-rc2-23931",
+        "System.Linq.Expressions": "4.0.11-rc2-23931",
+        "System.Security.Cryptography.Algorithms": "4.1.0-rc2-23931",
+        "System.Xml.XDocument": "4.0.11-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.DotNet/Tools/DummyLogger.cs b/src/OmniSharp.DotNet/Tools/DummyLogger.cs
index e41d40a62e..2065924dd0 100644
--- a/src/OmniSharp.DotNet/Tools/DummyLogger.cs
+++ b/src/OmniSharp.DotNet/Tools/DummyLogger.cs
@@ -4,7 +4,7 @@ namespace Microsoft.Extensions.Logging
 {
     public class DummyLogger<T> : ILogger<T>
     {
-        public IDisposable BeginScopeImpl(object state) => new Disposable();
+        public IDisposable BeginScope<TState>(TState state) => new Disposable();
 
         public bool IsEnabled(LogLevel logLevel) => false;
 
diff --git a/src/OmniSharp.DotNet/project.json b/src/OmniSharp.DotNet/project.json
index 0167878869..9b532e7d48 100644
--- a/src/OmniSharp.DotNet/project.json
+++ b/src/OmniSharp.DotNet/project.json
@@ -6,10 +6,10 @@
   "dependencies": {
     "OmniSharp.Abstractions": "1.0.0-*",
     "OmniSharp.Roslyn": "1.0.0-*",
-    "Microsoft.CodeAnalysis": "1.1.1",
-    "Microsoft.CodeAnalysis.Common": "1.1.1",
-    "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*",
-    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20143"
+    "Microsoft.CodeAnalysis": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.Common": "1.3.0-beta1-20160321-04",
+    "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202",
+    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20448"
   },
   "frameworks": {
     "net451": {
@@ -24,7 +24,11 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.IO.Compression": "4.1.0-rc2-23931",
+        "System.Runtime.Loader": "4.0.0-rc2-23931",
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931",
+        "System.Security.Cryptography.Algorithms": "4.1.0-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.Host/project.json b/src/OmniSharp.Host/project.json
index 5e2ad1603b..750c95c62c 100644
--- a/src/OmniSharp.Host/project.json
+++ b/src/OmniSharp.Host/project.json
@@ -10,18 +10,18 @@
     "OmniSharp.Stdio": "1.0.0-*",
     "OmniSharp.Plugins": "1.0.0-*",
     "OmniSharp.Roslyn": "1.0.0-*",
-    "Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-20143",
-    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-20143",
+    "Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-20448",
+    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-20448",
     "Microsoft.Composition": "1.0.30",
-    "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*",
-    "Microsoft.Extensions.Caching.Memory": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.DependencyModel": "1.0.0-beta-*",
-    "Microsoft.Extensions.DependencyInjection.Abstractions": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.FileSystemGlobbing": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Options": "1.0.0-rc2-20143",
-    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0-rc2-20143"
+    "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202",
+    "Microsoft.Extensions.Caching.Memory": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.DependencyModel": "1.0.0-beta-002202",
+    "Microsoft.Extensions.DependencyInjection.Abstractions": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.FileSystemGlobbing": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Options": "1.0.0-rc2-20448",
+    "Microsoft.Extensions.Options.ConfigurationExtensions": "1.0.0-rc2-20448"
   },
   "frameworks": {
     "net451": {
@@ -37,7 +37,9 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Runtime.Loader": "4.0.0-rc2-23931",
+        "System.IO.Compression": "4.1.0-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.MSBuild/project.json b/src/OmniSharp.MSBuild/project.json
index f2872a2d0a..3c16189c6e 100644
--- a/src/OmniSharp.MSBuild/project.json
+++ b/src/OmniSharp.MSBuild/project.json
@@ -7,7 +7,7 @@
   "dependencies": {
     "OmniSharp.Abstractions": "1.0.0-*",
     "OmniSharp.Roslyn.CSharp": "1.0.0-*",
-    "Microsoft.Extensions.Options": "1.0.0-rc2-20143"
+    "Microsoft.Extensions.Options": "1.0.0-rc2-20448"
   },
   "frameworks": {
     "net451": {
diff --git a/src/OmniSharp.Nuget/project.json b/src/OmniSharp.Nuget/project.json
index 9154d9ce82..3d02c78ceb 100644
--- a/src/OmniSharp.Nuget/project.json
+++ b/src/OmniSharp.Nuget/project.json
@@ -11,11 +11,11 @@
   "frameworks": {
     "net451": {
       "dependencies": {
-        "NuGet.Configuration": "3.4.0-rtm-0733",
+        "NuGet.Configuration": "3.5.0-beta-1123",
         "NuGet.Protocol.Core.v2": "3.3.0",
         "NuGet.Protocol.Core.v3": "3.3.0",
-        "NuGet.Packaging": "3.4.0-rtm-0733",
-        "NuGet.Packaging.Core": "3.4.0-rtm-0733",
+        "NuGet.Packaging": "3.5.0-beta-1123",
+        "NuGet.Packaging.Core": "3.5.0-beta-1123",
         "Microsoft.Web.Xdt": "2.1.1"
       },
       "frameworkAssemblies": {
@@ -36,7 +36,7 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.Plugins/project.json b/src/OmniSharp.Plugins/project.json
index b66e79f198..15a3a14076 100644
--- a/src/OmniSharp.Plugins/project.json
+++ b/src/OmniSharp.Plugins/project.json
@@ -6,12 +6,12 @@
   },
   "dependencies": {
     "OmniSharp.Abstractions": "1.0.0-*",
-    "Newtonsoft.Json": "8.0.2",
-    "Microsoft.CodeAnalysis": "1.1.1",
-    "Microsoft.CodeAnalysis.CSharp": "1.1.1",
-    "Microsoft.CodeAnalysis.CSharp.Features": "1.1.1",
-    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.1.1",
-    "Microsoft.CodeAnalysis.VisualBasic.Workspaces": "1.1.1"
+    "Newtonsoft.Json": "8.0.3",
+    "Microsoft.CodeAnalysis": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.CSharp": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.CSharp.Features": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.VisualBasic.Workspaces": "1.3.0-beta1-20160321-04"
   },
   "frameworks": {
     "net451": {
@@ -26,7 +26,7 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.Roslyn.CSharp/CodeActions/RoslynCodeActionProvider.cs b/src/OmniSharp.Roslyn.CSharp/CodeActions/RoslynCodeActionProvider.cs
index 46aac663a8..c72607f09f 100644
--- a/src/OmniSharp.Roslyn.CSharp/CodeActions/RoslynCodeActionProvider.cs
+++ b/src/OmniSharp.Roslyn.CSharp/CodeActions/RoslynCodeActionProvider.cs
@@ -10,8 +10,8 @@ public class RoslynCodeActionProvider : AbstractCodeActionProvider
         [ImportingConstructor]
         public RoslynCodeActionProvider(IOmnisharpAssemblyLoader loader)
             : base("Roslyn", loader,
-                  "Microsoft.CodeAnalysis.CSharp.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
-                  "Microsoft.CodeAnalysis.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")
+                  "Microsoft.CodeAnalysis.CSharp.Features, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
+                  "Microsoft.CodeAnalysis.Features, Version=1.3.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")
         { }
     }
 }
diff --git a/src/OmniSharp.Roslyn.CSharp/Services/Intellisense/IntellisenseService.cs b/src/OmniSharp.Roslyn.CSharp/Services/Intellisense/IntellisenseService.cs
index dde825d38e..1bf9972cd3 100644
--- a/src/OmniSharp.Roslyn.CSharp/Services/Intellisense/IntellisenseService.cs
+++ b/src/OmniSharp.Roslyn.CSharp/Services/Intellisense/IntellisenseService.cs
@@ -43,7 +43,7 @@ public async Task<IEnumerable<AutoCompleteResponse>> Handle(AutoCompleteRequest
 
                 AddKeywords(completions, model, position, request.WantKind, wordToComplete);
 
-                var symbols = Recommender.GetRecommendedSymbolsAtPosition(model, position, _workspace);
+                var symbols = await Recommender.GetRecommendedSymbolsAtPositionAsync(model, position, _workspace);
 
                 foreach (var symbol in symbols.Where(s => s.Name.IsValidCompletionFor(wordToComplete)))
                 {
diff --git a/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindImplementationsService.cs b/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindImplementationsService.cs
index 3e88ef6f01..a9ca3523b4 100644
--- a/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindImplementationsService.cs
+++ b/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindImplementationsService.cs
@@ -33,7 +33,7 @@ public async Task<QuickFixResponse> Handle(FindImplementationsRequest request)
                 var semanticModel = await document.GetSemanticModelAsync();
                 var sourceText = await document.GetTextAsync();
                 var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
-                var symbol = SymbolFinder.FindSymbolAtPosition(semanticModel, position, _workspace);
+                var symbol = await SymbolFinder.FindSymbolAtPositionAsync(semanticModel, position, _workspace);
                 var quickFixes = new List<QuickFix>();
 
                 var implementations = await SymbolFinder.FindImplementationsAsync(symbol, _workspace.CurrentSolution);
diff --git a/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindUsagesService.cs b/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindUsagesService.cs
index 6fab94a7cf..ed8d5b01d2 100644
--- a/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindUsagesService.cs
+++ b/src/OmniSharp.Roslyn.CSharp/Services/Navigation/FindUsagesService.cs
@@ -33,7 +33,7 @@ public async Task<QuickFixResponse> Handle(FindUsagesRequest request)
                 var semanticModel = await document.GetSemanticModelAsync();
                 var sourceText = await document.GetTextAsync();
                 var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
-                var symbol = SymbolFinder.FindSymbolAtPosition(semanticModel, position, _workspace);
+                var symbol = await SymbolFinder.FindSymbolAtPositionAsync(semanticModel, position, _workspace);
                 var definition = await SymbolFinder.FindSourceDefinitionAsync(symbol, _workspace.CurrentSolution);
                 var usages = request.OnlyThisFile
                     ? await SymbolFinder.FindReferencesAsync(definition ?? symbol, _workspace.CurrentSolution, ImmutableHashSet.Create(document))
diff --git a/src/OmniSharp.Roslyn.CSharp/Services/Navigation/GotoDefinitionService.cs b/src/OmniSharp.Roslyn.CSharp/Services/Navigation/GotoDefinitionService.cs
index 8b592aee10..c2a175bc1f 100644
--- a/src/OmniSharp.Roslyn.CSharp/Services/Navigation/GotoDefinitionService.cs
+++ b/src/OmniSharp.Roslyn.CSharp/Services/Navigation/GotoDefinitionService.cs
@@ -37,7 +37,7 @@ public async Task<GotoDefinitionResponse> Handle(GotoDefinitionRequest request)
                 var syntaxTree = semanticModel.SyntaxTree;
                 var sourceText = await document.GetTextAsync();
                 var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
-                var symbol = SymbolFinder.FindSymbolAtPosition(semanticModel, position, _workspace);
+                var symbol = await SymbolFinder.FindSymbolAtPositionAsync(semanticModel, position, _workspace);
 
                 if (symbol != null)
                 {
diff --git a/src/OmniSharp.Roslyn.CSharp/Services/Types/TypeLookup.cs b/src/OmniSharp.Roslyn.CSharp/Services/Types/TypeLookup.cs
index 70133a9157..90e729e9d9 100644
--- a/src/OmniSharp.Roslyn.CSharp/Services/Types/TypeLookup.cs
+++ b/src/OmniSharp.Roslyn.CSharp/Services/Types/TypeLookup.cs
@@ -32,7 +32,7 @@ public async Task<TypeLookupResponse> Handle(TypeLookupRequest request)
                 var semanticModel = await document.GetSemanticModelAsync();
                 var sourceText = await document.GetTextAsync();
                 var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
-                var symbol = SymbolFinder.FindSymbolAtPosition(semanticModel, position, _workspace);
+                var symbol = await SymbolFinder.FindSymbolAtPositionAsync(semanticModel, position, _workspace);
                 if (symbol != null)
                 {
                     //non regular C# code semantics (interactive, script) don't allow namespaces
diff --git a/src/OmniSharp.Roslyn.CSharp/project.json b/src/OmniSharp.Roslyn.CSharp/project.json
index 596d458060..5b11d00de0 100644
--- a/src/OmniSharp.Roslyn.CSharp/project.json
+++ b/src/OmniSharp.Roslyn.CSharp/project.json
@@ -7,9 +7,9 @@
   "dependencies": {
     "OmniSharp.Abstractions": "1.0.0-*",
     "OmniSharp.Roslyn": "1.0.0-*",
-    "Microsoft.CodeAnalysis.CSharp": "1.1.1",
-    "Microsoft.CodeAnalysis.CSharp.Features": "1.1.1",
-    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.1.1"
+    "Microsoft.CodeAnalysis.CSharp": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.CSharp.Features": "1.3.0-beta1-20160321-04",
+    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04"
   },
   "frameworks": {
     "net451": {
@@ -35,8 +35,8 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "System.Threading.Tasks.Parallel": "4.0.1-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Threading.Tasks.Parallel": "4.0.1-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.Roslyn/project.json b/src/OmniSharp.Roslyn/project.json
index c7ec733f23..6c1d824cf7 100644
--- a/src/OmniSharp.Roslyn/project.json
+++ b/src/OmniSharp.Roslyn/project.json
@@ -6,8 +6,8 @@
   },
   "dependencies": {
     "OmniSharp.Abstractions": "1.0.0-*",
-    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20143",
-    "Microsoft.CodeAnalysis": "1.1.1"
+    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-rc2-20448",
+    "Microsoft.CodeAnalysis": "1.3.0-beta1-20160321-04"
   },
   "frameworks": {
     "net451": {
@@ -34,7 +34,9 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Reflection.TypeExtensions": "4.1.0-rc2-23931",
+        "System.Xml.XDocument": "4.0.11-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp.Stdio/Logging/StdioLogger.cs b/src/OmniSharp.Stdio/Logging/StdioLogger.cs
index b23f22de3e..7f23ce14b0 100644
--- a/src/OmniSharp.Stdio/Logging/StdioLogger.cs
+++ b/src/OmniSharp.Stdio/Logging/StdioLogger.cs
@@ -19,7 +19,7 @@ internal StdioLogger(ISharedTextWriter writer, string name, Func<string, LogLeve
             _filter = filter;
         }
 
-        public IDisposable BeginScopeImpl(object state)
+        public IDisposable BeginScope<TState>(TState state)
         {
             return new NoopDisposable();
         }
diff --git a/src/OmniSharp.Stdio/StdioServer.cs b/src/OmniSharp.Stdio/StdioServer.cs
index 0393464214..fab2e167f7 100644
--- a/src/OmniSharp.Stdio/StdioServer.cs
+++ b/src/OmniSharp.Stdio/StdioServer.cs
@@ -6,7 +6,7 @@
 using Microsoft.AspNetCore.Hosting.Server;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Features;
-using Microsoft.AspNetCore.Http.Internal;
+using Microsoft.Extensions.ObjectPool;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using OmniSharp.Stdio.Features;
@@ -22,6 +22,7 @@ public class StdioServer : IServer
         private readonly CancellationTokenSource _cancellation;
         private readonly IHttpContextFactory _httpContextFactory;
         private readonly IHttpContextAccessor _httpContextAccessor;
+        private readonly ObjectPoolProvider _objectPoolProvider;
         private readonly object _lock = new object();
 
         public StdioServer(TextReader input, ISharedTextWriter writer)
@@ -31,7 +32,8 @@ public StdioServer(TextReader input, ISharedTextWriter writer)
             _cancellation = new CancellationTokenSource();
 
             _httpContextAccessor = new HttpContextAccessor();
-            _httpContextFactory = new HttpContextFactory(_httpContextAccessor);
+            _objectPoolProvider = new DefaultObjectPoolProvider();
+            _httpContextFactory = new HttpContextFactory(_objectPoolProvider, _httpContextAccessor);
 
             var features = new FeatureCollection();
             var requestFeature = new RequestFeature();
diff --git a/src/OmniSharp.Stdio/project.json b/src/OmniSharp.Stdio/project.json
index c2df51fabc..c6dc37cf56 100644
--- a/src/OmniSharp.Stdio/project.json
+++ b/src/OmniSharp.Stdio/project.json
@@ -7,9 +7,9 @@
   },
   "dependencies": {
     "OmniSharp.Abstractions": "1.0.0-*",
-    "Microsoft.AspNetCore.Hosting": "1.0.0-rc2-20143",
-    "Microsoft.AspNetCore.Http.Features": "1.0.0-rc2-20143",
-    "Newtonsoft.Json": "8.0.2"
+    "Microsoft.AspNetCore.Hosting": "1.0.0-rc2-20448",
+    "Microsoft.AspNetCore.Http.Features": "1.0.0-rc2-20448",
+    "Newtonsoft.Json": "8.0.3"
   },
   "frameworks": {
     "net451": {},
@@ -20,8 +20,8 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "System.Runtime.Serialization.Primitives": "4.1.0-rc2-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931"
       }
     }
   }
diff --git a/src/OmniSharp/project.json b/src/OmniSharp/project.json
index 6e2ebfbc9f..b4f1ee85be 100644
--- a/src/OmniSharp/project.json
+++ b/src/OmniSharp/project.json
@@ -23,8 +23,8 @@
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202"
       }
     }
   },
diff --git a/tests/OmniSharp.Bootstrap.Tests/project.json b/tests/OmniSharp.Bootstrap.Tests/project.json
index c56ebf814c..ef3581f3b3 100644
--- a/tests/OmniSharp.Bootstrap.Tests/project.json
+++ b/tests/OmniSharp.Bootstrap.Tests/project.json
@@ -5,20 +5,32 @@
   },
   "dependencies": {
     "OmniSharp.Bootstrap": "1.0.0-*",
-    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.1.1",
-    "Microsoft.Extensions.DependencyModel": "1.0.0-beta-*",
+    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04",
+    "Microsoft.Extensions.DependencyModel": "1.0.0-beta-002202",
     "xunit": "2.1.0"
   },
   "frameworks": {
     "netcoreapp1.0": {
       "imports": [
+        "netstandardapp1.5",
         "dnxcore50",
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*",
-        "dotnet-test-xunit": "1.0.0-dev-91790-12"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202",
+        "Microsoft.DotNet.InternalAbstractions": "1.0.0-beta-002202",
+        "Microsoft.Extensions.Logging.Abstractions": "1.0.0-rc2-20448",
+        "Microsoft.Extensions.FileSystemGlobbing": "1.0.0-rc2-20448",
+        "NuGet.Packaging": "3.5.0-beta-1123",
+        "System.Diagnostics.Process": "4.1.0-rc2-23931",
+        "System.IO.Compression": "4.1.0-rc2-23931",
+        "System.Linq.Expressions": "4.0.11-rc2-23931",
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931",
+        "System.Runtime.Loader": "4.0.0-rc2-23931",
+        "System.Threading.Thread": "4.0.0-rc2-23931",
+        "System.Threading.ThreadPool": "4.0.10-rc2-23931",
+        "dotnet-test-xunit": "1.0.0-dev-128011-22"
       }
     },
     "net451": {
diff --git a/tests/OmniSharp.MSBuild.Tests/project.json b/tests/OmniSharp.MSBuild.Tests/project.json
index 68a008ea75..51458af9b6 100644
--- a/tests/OmniSharp.MSBuild.Tests/project.json
+++ b/tests/OmniSharp.MSBuild.Tests/project.json
@@ -5,7 +5,7 @@
   },
   "dependencies": {
     "OmniSharp.Tests": "1.0.0-*",
-    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.1.1",
+    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04",
     "xunit": "2.1.0"
   },
   "frameworks": {
diff --git a/tests/OmniSharp.Roslyn.CSharp.Tests/project.json b/tests/OmniSharp.Roslyn.CSharp.Tests/project.json
index f606bd22be..b8f8c0f75c 100644
--- a/tests/OmniSharp.Roslyn.CSharp.Tests/project.json
+++ b/tests/OmniSharp.Roslyn.CSharp.Tests/project.json
@@ -6,20 +6,22 @@
   "dependencies": {
     "OmniSharp.Tests": "1.0.0-*",
     "OmniSharp.Roslyn.CSharp": "1.0.0-*",
-    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.1.1",
+    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04",
     "xunit": "2.1.0"
   },
   "frameworks": {
     "netcoreapp1.0": {
       "imports": [
+        "netstandardapp1.5",
         "dnxcore50",
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "System.Linq.Parallel": "4.0.1-rc2-*",
-        "System.Threading.Tasks.Parallel": "4.0.1-rc2-*",
-        "dotnet-test-xunit": "1.0.0-dev-91790-12"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "System.Linq.Parallel": "4.0.1-rc2-23931",
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931",
+        "System.Threading.Tasks.Parallel": "4.0.1-rc2-23931",
+        "dotnet-test-xunit": "1.0.0-dev-128011-22"
       }
     },
     "net451": {
diff --git a/tests/OmniSharp.Stdio.Tests/project.json b/tests/OmniSharp.Stdio.Tests/project.json
index 88c7dba376..4558dffc91 100644
--- a/tests/OmniSharp.Stdio.Tests/project.json
+++ b/tests/OmniSharp.Stdio.Tests/project.json
@@ -5,19 +5,26 @@
   },
   "dependencies": {
     "OmniSharp.Stdio": "1.0.0-*",
-    "Newtonsoft.Json": "8.0.2",
+    "Newtonsoft.Json": "8.0.3",
     "xunit": "2.1.0"
   },
   "frameworks": {
     "netcoreapp1.0": {
       "imports": [
+        "netstandardapp1.5",
         "dnxcore50",
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*",
-        "dotnet-test-xunit": "1.0.0-dev-91790-12"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202",
+        "NuGet.Packaging": "3.5.0-beta-1123",
+        "System.IO.Compression": "4.1.0-rc2-23931",
+        "System.Runtime.Loader": "4.0.0-rc2-23931",
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931",
+        "System.Threading.ThreadPool": "4.0.10-rc2-23931",
+        "System.Xml.XDocument": "4.0.11-rc2-23931",
+        "dotnet-test-xunit": "1.0.0-dev-128011-22"
       }
     },
     "net451": {
diff --git a/tests/OmniSharp.Tests/EndpointMiddlewareFacts.cs b/tests/OmniSharp.Tests/EndpointMiddlewareFacts.cs
index 1a49876fb8..4e601f3c71 100644
--- a/tests/OmniSharp.Tests/EndpointMiddlewareFacts.cs
+++ b/tests/OmniSharp.Tests/EndpointMiddlewareFacts.cs
@@ -6,7 +6,6 @@
 using System.Text;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Http.Internal;
 using Microsoft.CodeAnalysis;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging;
@@ -92,7 +91,7 @@ class Disposable : IDisposable { public void Dispose() { } }
 
         class Logger : ILogger
         {
-            public IDisposable BeginScopeImpl(object state) => new Disposable();
+            public IDisposable BeginScope<TState>(TState state) => new Disposable();
             public bool IsEnabled(LogLevel logLevel) => true;
             public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter) { }
         }
diff --git a/tests/OmniSharp.Tests/Fakes/FakeLogger.cs b/tests/OmniSharp.Tests/Fakes/FakeLogger.cs
index 468705c4ed..dd5a12b572 100644
--- a/tests/OmniSharp.Tests/Fakes/FakeLogger.cs
+++ b/tests/OmniSharp.Tests/Fakes/FakeLogger.cs
@@ -7,10 +7,11 @@ public class FakeLogger : ILogger
     {
         public bool IsEnabled(LogLevel level) => true;
 
-        public IDisposable BeginScopeImpl(object owner) => new NoopDisposable();
+        public IDisposable BeginScope<TState>(TState state) => new NoopDisposable();
 
         public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter) { }
 
+
         private class NoopDisposable : IDisposable
         {
             public void Dispose() { }
diff --git a/tests/OmniSharp.Tests/TestHelpers.cs b/tests/OmniSharp.Tests/TestHelpers.cs
index 378c7ca0ff..46ef25cd2a 100644
--- a/tests/OmniSharp.Tests/TestHelpers.cs
+++ b/tests/OmniSharp.Tests/TestHelpers.cs
@@ -206,7 +206,7 @@ public static async Task<ISymbol> SymbolFromQuickFix(OmnisharpWorkspace workspac
             var sourceText = await document.GetTextAsync();
             var position = sourceText.Lines.GetPosition(new LinePosition(result.Line - 1, result.Column - 1));
             var semanticModel = await document.GetSemanticModelAsync();
-            return SymbolFinder.FindSymbolAtPosition(semanticModel, position, workspace);
+            return await SymbolFinder.FindSymbolAtPositionAsync(semanticModel, position, workspace);
         }
 
         public static async Task<IEnumerable<ISymbol>> SymbolsFromQuickFixes(OmnisharpWorkspace workspace, IEnumerable<QuickFix> quickFixes)
diff --git a/tests/OmniSharp.Tests/project.json b/tests/OmniSharp.Tests/project.json
index 4be07ffa86..eeb3bdde5e 100644
--- a/tests/OmniSharp.Tests/project.json
+++ b/tests/OmniSharp.Tests/project.json
@@ -6,21 +6,24 @@
   "dependencies": {
     "OmniSharp.Host": "1.0.0-*",
     "OmniSharp.Roslyn.CSharp": "1.0.0-*",
-    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.1.1",
-    "Microsoft.DotNet.InternalAbstractions": "1.0.0-beta-*",
-    "Microsoft.Extensions.DependencyModel": "1.0.0-beta-*",
+    "Microsoft.CodeAnalysis.CSharp.Workspaces": "1.3.0-beta1-20160321-04",
+    "Microsoft.DotNet.InternalAbstractions": "1.0.0-beta-002202",
+    "Microsoft.Extensions.DependencyModel": "1.0.0-beta-002202",
     "xunit": "2.1.0"
   },
   "frameworks": {
     "netcoreapp1.0": {
       "imports": [
+        "netstandardapp1.5",
         "dnxcore50",
         "portable-net45+win8"
       ],
       "dependencies": {
-        "NETStandard.Library": "1.5.0-rc2-*",
-        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-*",
-        "dotnet-test-xunit": "1.0.0-dev-91790-12"
+        "NETStandard.Library": "1.5.0-rc2-23931",
+        "Microsoft.DotNet.ProjectModel": "1.0.0-beta-002202",
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-23931",
+        "System.IO.Compression": "4.1.0-rc2-23931",
+        "dotnet-test-xunit": "1.0.0-dev-128011-22"
       }
     },
     "net451": {