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Posted to commits@lucenenet.apache.org by ni...@apache.org on 2017/10/20 10:55:34 UTC

[07/10] lucenenet git commit: SWEEP: Changed all projects to target .NET Standard 1.6 instead of .NET Standard 1.5 (incompatible with Microsoft.Extensions.DependencyModel)

SWEEP: Changed all projects to target .NET Standard 1.6 instead of .NET Standard 1.5 (incompatible with Microsoft.Extensions.DependencyModel)


Project: http://git-wip-us.apache.org/repos/asf/lucenenet/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucenenet/commit/bf2b3ab8
Tree: http://git-wip-us.apache.org/repos/asf/lucenenet/tree/bf2b3ab8
Diff: http://git-wip-us.apache.org/repos/asf/lucenenet/diff/bf2b3ab8

Branch: refs/heads/master
Commit: bf2b3ab81a1961857adced14590089f71e44fd79
Parents: fd69196
Author: Shad Storhaug <sh...@shadstorhaug.com>
Authored: Fri Oct 20 04:00:13 2017 +0700
Committer: Shad Storhaug <sh...@shadstorhaug.com>
Committed: Fri Oct 20 04:00:13 2017 +0700

----------------------------------------------------------------------
 .../Analysis/Util/BufferedCharFilter.cs               |  8 ++++----
 .../Lucene.Net.Analysis.Common.csproj                 | 10 +++++-----
 .../Dict/BinaryDictionary.cs                          |  2 +-
 .../Lucene.Net.Analysis.Kuromoji.csproj               | 10 +++++-----
 .../Lucene.Net.Analysis.Phonetic.csproj               |  8 ++++----
 src/Lucene.Net.Analysis.SmartCn/AnalyzerProfile.cs    |  2 +-
 .../Lucene.Net.Analysis.SmartCn.csproj                | 10 +++++-----
 .../Lucene.Net.Analysis.Stempel.csproj                |  8 ++++----
 src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj  | 10 +++++-----
 .../Lucene.Net.Classification.csproj                  |  8 ++++----
 src/Lucene.Net.Codecs/Lucene.Net.Codecs.csproj        | 10 +++++-----
 src/Lucene.Net.Demo/Lucene.Net.Demo.csproj            |  8 ++++----
 .../Lucene.Net.Expressions.csproj                     | 12 ++++++------
 src/Lucene.Net.Facet/Lucene.Net.Facet.csproj          | 10 +++++-----
 src/Lucene.Net.Grouping/Lucene.Net.Grouping.csproj    |  8 ++++----
 .../Lucene.Net.Highlighter.csproj                     | 10 +++++-----
 src/Lucene.Net.Join/Lucene.Net.Join.csproj            |  8 ++++----
 src/Lucene.Net.Memory/Lucene.Net.Memory.csproj        |  8 ++++----
 src/Lucene.Net.Misc/Lucene.Net.Misc.csproj            |  8 ++++----
 src/Lucene.Net.Queries/Lucene.Net.Queries.csproj      |  8 ++++----
 .../Lucene.Net.QueryParser.csproj                     | 10 +++++-----
 .../Lucene.Net.Replicator.csproj                      |  8 ++++----
 src/Lucene.Net.Sandbox/Lucene.Net.Sandbox.csproj      |  8 ++++----
 src/Lucene.Net.Spatial/Lucene.Net.Spatial.csproj      |  8 ++++----
 src/Lucene.Net.Suggest/Lucene.Net.Suggest.csproj      |  8 ++++----
 .../Analysis/BaseTokenStreamTestCase.cs               |  4 ++--
 .../Lucene.Net.TestFramework.csproj                   | 10 +++++-----
 .../Store/SlowClosingMockIndexInputWrapper.cs         |  2 +-
 .../Store/SlowOpeningMockIndexInputWrapper.cs         |  4 ++--
 .../Support/ApiScanTestBase.cs                        |  4 ++--
 .../Support/CultureInfoSupport.cs                     |  4 ++--
 .../Util/ThrottledIndexOutput.cs                      |  4 ++--
 src/Lucene.Net.TestFramework/Util/VirtualMethod.cs    |  4 ++--
 .../Lucene.Net.Tests.Analysis.Common.csproj           |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Analysis.Kuromoji.csproj         |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Analysis.Phonetic.csproj         |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Analysis.SmartCn.csproj          |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Analysis.Stempel.csproj          |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Benchmark.csproj                 |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Classification.csproj            |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Codecs.csproj                    |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Expressions.csproj               |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Facet.csproj                     |  2 +-
 src/Lucene.Net.Tests.Facet/SlowRAMDirectory.cs        |  4 ++--
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Grouping.csproj                  |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Highlighter.csproj               |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Join.csproj                      |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Memory.csproj                    |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Misc.csproj                      |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Queries.csproj                   |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.QueryParser.csproj               |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Xml/TestQueryTemplateManager.cs                   |  2 +-
 .../Lucene.Net.Tests.Replicator.csproj                |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Sandbox.csproj                   |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Spatial.csproj                   |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Lucene.Net.Tests.Suggest.csproj                   |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 .../Index/TestDocumentsWriterDeleteQueue.cs           |  4 ++--
 .../Index/TestDocumentsWriterStallControl.cs          |  6 +++---
 src/Lucene.Net.Tests/Index/TestIndexWriter.cs         |  8 ++++----
 .../Index/TestIndexWriterNRTIsCurrent.cs              |  4 ++--
 src/Lucene.Net.Tests/Index/TestIndexWriterReader.cs   |  4 ++--
 .../Index/TestIndexWriterWithThreads.cs               |  4 ++--
 src/Lucene.Net.Tests/Index/TestPostingsFormat.cs      |  2 +-
 .../Index/TestSnapshotDeletionPolicy.cs               |  4 ++--
 src/Lucene.Net.Tests/Lucene.Net.Tests.csproj          |  2 +-
 .../Search/TestControlledRealTimeReopenThread.cs      | 12 ++++++------
 src/Lucene.Net.Tests/Search/TestSearcherManager.cs    |  4 ++--
 .../Search/TestTimeLimitingCollector.cs               |  2 +-
 src/Lucene.Net.Tests/Support/TestApiConsistency.cs    |  2 +-
 src/Lucene.Net.Tests/TestWorstCaseTestBehavior.cs     |  8 ++++----
 src/Lucene.Net.Tests/Util/TestSetOnce.cs              |  2 +-
 src/Lucene.Net.Tests/Util/TestWeakIdentityMap.cs      |  8 ++++----
 src/Lucene.Net/Index/DocumentsWriterFlushControl.cs   |  4 ++--
 src/Lucene.Net/Index/DocumentsWriterStallControl.cs   |  4 ++--
 src/Lucene.Net/Index/IndexWriter.cs                   | 14 +++++++-------
 src/Lucene.Net/Index/MergePolicy.cs                   |  4 ++--
 src/Lucene.Net/Index/TaskMergeScheduler.cs            |  6 +++---
 src/Lucene.Net/Lucene.Net.csproj                      | 12 ++++++------
 .../Search/ControlledRealTimeReopenThread.cs          |  8 ++++----
 src/Lucene.Net/Search/IndexSearcher.cs                |  2 +-
 src/Lucene.Net/Search/TimeLimitingCollector.cs        |  4 ++--
 src/Lucene.Net/Store/Lock.cs                          |  4 ++--
 src/Lucene.Net/Store/RateLimiter.cs                   |  4 ++--
 src/Lucene.Net/Support/AssemblyUtils.cs               |  4 ++--
 .../Support/IO/MemoryMappedFileByteBuffer.cs          |  2 +-
 src/Lucene.Net/Support/IO/SafeTextWriterWrapper.cs    |  4 ++--
 src/Lucene.Net/Support/SimpleStringInterner.cs        |  2 +-
 src/Lucene.Net/Support/StringExtensions.cs            |  2 +-
 src/Lucene.Net/Support/StringInterner.cs              |  2 +-
 src/Lucene.Net/Support/Threading/ThreadClass.cs       |  8 ++++----
 src/Lucene.Net/Util/IOUtils.cs                        |  4 ++--
 src/dotnet/Lucene.Net.ICU/Lucene.Net.ICU.csproj       | 10 +++++-----
 .../Lucene.Net.Replicator.AspNetCore.csproj           |  8 ++++----
 .../Lucene.Net.Tests.ICU/Lucene.Net.Tests.ICU.csproj  |  2 +-
 .../Support/TestApiConsistency.cs                     |  2 +-
 116 files changed, 263 insertions(+), 263 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.Common/Analysis/Util/BufferedCharFilter.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.Common/Analysis/Util/BufferedCharFilter.cs b/src/Lucene.Net.Analysis.Common/Analysis/Util/BufferedCharFilter.cs
index bf843f8..5bd976a 100644
--- a/src/Lucene.Net.Analysis.Common/Analysis/Util/BufferedCharFilter.cs
+++ b/src/Lucene.Net.Analysis.Common/Analysis/Util/BufferedCharFilter.cs
@@ -70,7 +70,7 @@ namespace Lucene.Net.Analysis.Util
         private int mark = -1;
         private int markLimit = -1;
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         /// <summary>
         /// LUCENENET specific to throw an exception if the user calls <see cref="Close()"/> instead of <see cref="TextReader.Dispose()"/>
         /// </summary>
@@ -115,7 +115,7 @@ namespace Lucene.Net.Analysis.Util
         {
             if (disposing)
             {
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
                 this.isDisposing = true;
 #endif
                 lock (m_lock)
@@ -127,7 +127,7 @@ namespace Lucene.Net.Analysis.Util
                         buf = null;
                     }
                 }
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
                 this.isDisposing = false;
 #endif
             }
@@ -616,7 +616,7 @@ namespace Lucene.Net.Analysis.Util
         {
             throw new NotImplementedException();
         }
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         public override object InitializeLifetimeService()
         {
             throw new NotImplementedException();

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.Common/Lucene.Net.Analysis.Common.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.Common/Lucene.Net.Analysis.Common.csproj b/src/Lucene.Net.Analysis.Common/Lucene.Net.Analysis.Common.csproj
index 00da789..f49bd66 100644
--- a/src/Lucene.Net.Analysis.Common/Lucene.Net.Analysis.Common.csproj
+++ b/src/Lucene.Net.Analysis.Common/Lucene.Net.Analysis.Common.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Analysis.Common</AssemblyTitle>
     <Description>Analyzers for indexing content in different languages and domains for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -60,11 +60,11 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
   
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.ComponentModel.Primitives" Version="4.3.0" />
   </ItemGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.Kuromoji/Dict/BinaryDictionary.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.Kuromoji/Dict/BinaryDictionary.cs b/src/Lucene.Net.Analysis.Kuromoji/Dict/BinaryDictionary.cs
index 66f3a68..be83df3 100644
--- a/src/Lucene.Net.Analysis.Kuromoji/Dict/BinaryDictionary.cs
+++ b/src/Lucene.Net.Analysis.Kuromoji/Dict/BinaryDictionary.cs
@@ -55,7 +55,7 @@ namespace Lucene.Net.Analysis.Ja.Dict
         static BinaryDictionary()
         {
             string currentPath = SystemProperties.GetProperty("kuromoji.data.dir",
-#if NETSTANDARD1_5
+#if NETSTANDARD1_6
                 System.AppContext.BaseDirectory
 #else
                 AppDomain.CurrentDomain.BaseDirectory

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.Kuromoji/Lucene.Net.Analysis.Kuromoji.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.Kuromoji/Lucene.Net.Analysis.Kuromoji.csproj b/src/Lucene.Net.Analysis.Kuromoji/Lucene.Net.Analysis.Kuromoji.csproj
index b757072..cd11592 100644
--- a/src/Lucene.Net.Analysis.Kuromoji/Lucene.Net.Analysis.Kuromoji.csproj
+++ b/src/Lucene.Net.Analysis.Kuromoji/Lucene.Net.Analysis.Kuromoji.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Analysis.Kuromoji</AssemblyTitle>
     <Description>Japanese Morphological Analyzer for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -64,12 +64,12 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Globalization.Extensions" Version="4.3.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.Phonetic/Lucene.Net.Analysis.Phonetic.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.Phonetic/Lucene.Net.Analysis.Phonetic.csproj b/src/Lucene.Net.Analysis.Phonetic/Lucene.Net.Analysis.Phonetic.csproj
index 33c928d..97b26f9 100644
--- a/src/Lucene.Net.Analysis.Phonetic/Lucene.Net.Analysis.Phonetic.csproj
+++ b/src/Lucene.Net.Analysis.Phonetic/Lucene.Net.Analysis.Phonetic.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Analysis.Phonetic</AssemblyTitle>
     <Description>Analyzer for indexing phonetic signatures (for sounds-alike search) for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -59,7 +59,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.SmartCn/AnalyzerProfile.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.SmartCn/AnalyzerProfile.cs b/src/Lucene.Net.Analysis.SmartCn/AnalyzerProfile.cs
index 285dd8a..fd1f4b8 100644
--- a/src/Lucene.Net.Analysis.SmartCn/AnalyzerProfile.cs
+++ b/src/Lucene.Net.Analysis.SmartCn/AnalyzerProfile.cs
@@ -73,7 +73,7 @@ namespace Lucene.Net.Analysis.Cn.Smart
             if (ANALYSIS_DATA_DIR.Length != 0)
                 return;
 
-#if NETSTANDARD1_5
+#if NETSTANDARD1_6
             string currentPath = System.AppContext.BaseDirectory;
 #else
             string currentPath = AppDomain.CurrentDomain.BaseDirectory;

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.SmartCn/Lucene.Net.Analysis.SmartCn.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.SmartCn/Lucene.Net.Analysis.SmartCn.csproj b/src/Lucene.Net.Analysis.SmartCn/Lucene.Net.Analysis.SmartCn.csproj
index 16f4feb..01ea975 100644
--- a/src/Lucene.Net.Analysis.SmartCn/Lucene.Net.Analysis.SmartCn.csproj
+++ b/src/Lucene.Net.Analysis.SmartCn/Lucene.Net.Analysis.SmartCn.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Analysis.SmartCn</AssemblyTitle>
     <Description>Analyzer for indexing Chinese for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -70,11 +70,11 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Analysis.Stempel/Lucene.Net.Analysis.Stempel.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Analysis.Stempel/Lucene.Net.Analysis.Stempel.csproj b/src/Lucene.Net.Analysis.Stempel/Lucene.Net.Analysis.Stempel.csproj
index 7a6d920..711839d 100644
--- a/src/Lucene.Net.Analysis.Stempel/Lucene.Net.Analysis.Stempel.csproj
+++ b/src/Lucene.Net.Analysis.Stempel/Lucene.Net.Analysis.Stempel.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Analysis.Stempel</AssemblyTitle>
     <Description>Analyzer for indexing Polish for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -57,7 +57,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj b/src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj
index 803087c..af9e7a7 100644
--- a/src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj
+++ b/src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Benchmark</AssemblyTitle>
     <Description>System for benchmarking the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -74,12 +74,12 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="SharpZipLib.NETStandard" Version="0.86.0.1" />
     <PackageReference Include="System.Net.Primitives" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Classification/Lucene.Net.Classification.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Classification/Lucene.Net.Classification.csproj b/src/Lucene.Net.Classification/Lucene.Net.Classification.csproj
index d89ca18..fbd3a8c 100644
--- a/src/Lucene.Net.Classification/Lucene.Net.Classification.csproj
+++ b/src/Lucene.Net.Classification/Lucene.Net.Classification.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Classification</AssemblyTitle>
     <Description>Classification module for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -57,7 +57,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Codecs/Lucene.Net.Codecs.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Codecs/Lucene.Net.Codecs.csproj b/src/Lucene.Net.Codecs/Lucene.Net.Codecs.csproj
index c6c90f9..036b287 100644
--- a/src/Lucene.Net.Codecs/Lucene.Net.Codecs.csproj
+++ b/src/Lucene.Net.Codecs/Lucene.Net.Codecs.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Codecs</AssemblyTitle>
     <Description>Specialized codecs and postings formats for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -56,11 +56,11 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="Microsoft.CSharp" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Demo/Lucene.Net.Demo.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Demo/Lucene.Net.Demo.csproj b/src/Lucene.Net.Demo/Lucene.Net.Demo.csproj
index bbd5592..21696d7 100644
--- a/src/Lucene.Net.Demo/Lucene.Net.Demo.csproj
+++ b/src/Lucene.Net.Demo/Lucene.Net.Demo.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Demo</AssemblyTitle>
     <Description>Simple example code for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -60,7 +60,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Expressions/Lucene.Net.Expressions.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Expressions/Lucene.Net.Expressions.csproj b/src/Lucene.Net.Expressions/Lucene.Net.Expressions.csproj
index afbc8dc..d1de44e 100644
--- a/src/Lucene.Net.Expressions/Lucene.Net.Expressions.csproj
+++ b/src/Lucene.Net.Expressions/Lucene.Net.Expressions.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Expressions</AssemblyTitle>
     <Description>Dynamically computed values to sort/facet/search on based on a pluggable grammar for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -68,18 +68,18 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Reflection.Emit" Version="4.3.0" />
     <PackageReference Include="System.Reflection.Emit.ILGeneration" Version="4.3.0" />
     <PackageReference Include="System.Reflection.TypeExtensions" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DefineConstants>$(DefineConstants);NETSTANDARD</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' OR '$(TargetFramework)' == 'netstandard2.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' OR '$(TargetFramework)' == 'netstandard2.0' ">
     <!-- LUCENENET TODO: Do we really need to remove and re-add CommonAssemblyInfo just to use Exclude? -->
     <Compile Remove="Properties\Settings.Designer.cs;..\CommonAssemblyInfo.cs" />
     <Compile Include="..\CommonAssemblyInfo.cs" Link="Properties\CommonAssemblyInfo.cs" Exclude="Properties\Settings.Designer.cs" />

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Facet/Lucene.Net.Facet.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Facet/Lucene.Net.Facet.csproj b/src/Lucene.Net.Facet/Lucene.Net.Facet.csproj
index 91f83fe..4c76348 100644
--- a/src/Lucene.Net.Facet/Lucene.Net.Facet.csproj
+++ b/src/Lucene.Net.Facet/Lucene.Net.Facet.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Facet</AssemblyTitle>
     <Description>Faceted indexing and search capabilities for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -58,12 +58,12 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
   
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
     <PackageReference Include="System.Net.Primitives" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Grouping/Lucene.Net.Grouping.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Grouping/Lucene.Net.Grouping.csproj b/src/Lucene.Net.Grouping/Lucene.Net.Grouping.csproj
index 2c72bfa..041d186 100644
--- a/src/Lucene.Net.Grouping/Lucene.Net.Grouping.csproj
+++ b/src/Lucene.Net.Grouping/Lucene.Net.Grouping.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Grouping</AssemblyTitle>
     <Description>Collectors for grouping search results for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -57,7 +57,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Highlighter/Lucene.Net.Highlighter.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Highlighter/Lucene.Net.Highlighter.csproj b/src/Lucene.Net.Highlighter/Lucene.Net.Highlighter.csproj
index 98658c7..8f9e051 100644
--- a/src/Lucene.Net.Highlighter/Lucene.Net.Highlighter.csproj
+++ b/src/Lucene.Net.Highlighter/Lucene.Net.Highlighter.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Highlighter</AssemblyTitle>
     <Description>Highlights search keywords in results from the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -57,11 +57,11 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Net.Primitives" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Join/Lucene.Net.Join.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Join/Lucene.Net.Join.csproj b/src/Lucene.Net.Join/Lucene.Net.Join.csproj
index 40983d2..42a53ca 100644
--- a/src/Lucene.Net.Join/Lucene.Net.Join.csproj
+++ b/src/Lucene.Net.Join/Lucene.Net.Join.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Join</AssemblyTitle>
     <Description>Index-time and Query-time joins for normalized content of the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -56,7 +56,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Memory/Lucene.Net.Memory.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Memory/Lucene.Net.Memory.csproj b/src/Lucene.Net.Memory/Lucene.Net.Memory.csproj
index 10bd285..d016693 100644
--- a/src/Lucene.Net.Memory/Lucene.Net.Memory.csproj
+++ b/src/Lucene.Net.Memory/Lucene.Net.Memory.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
     
     <AssemblyTitle>Lucene.Net.Memory</AssemblyTitle>
     <Description>Single-document in-memory index implementation for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -57,7 +57,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Misc/Lucene.Net.Misc.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Misc/Lucene.Net.Misc.csproj b/src/Lucene.Net.Misc/Lucene.Net.Misc.csproj
index 8f3cff0..c7c51e7 100644
--- a/src/Lucene.Net.Misc/Lucene.Net.Misc.csproj
+++ b/src/Lucene.Net.Misc/Lucene.Net.Misc.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Misc</AssemblyTitle>
     <Description>Index tools and other miscellaneous functionality for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -57,7 +57,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Queries/Lucene.Net.Queries.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Queries/Lucene.Net.Queries.csproj b/src/Lucene.Net.Queries/Lucene.Net.Queries.csproj
index 3b83ddf..f721a2a 100644
--- a/src/Lucene.Net.Queries/Lucene.Net.Queries.csproj
+++ b/src/Lucene.Net.Queries/Lucene.Net.Queries.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Queries</AssemblyTitle>
     <Description>Extended Filters and Queries for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -56,7 +56,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.QueryParser/Lucene.Net.QueryParser.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.QueryParser/Lucene.Net.QueryParser.csproj b/src/Lucene.Net.QueryParser/Lucene.Net.QueryParser.csproj
index ab3de64..cfd307d 100644
--- a/src/Lucene.Net.QueryParser/Lucene.Net.QueryParser.csproj
+++ b/src/Lucene.Net.QueryParser/Lucene.Net.QueryParser.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.QueryParser</AssemblyTitle>
     <Description>Query parsers and parsing framework for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -60,11 +60,11 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Xml.XmlDocument" Version="4.0.1" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Replicator/Lucene.Net.Replicator.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Replicator/Lucene.Net.Replicator.csproj b/src/Lucene.Net.Replicator/Lucene.Net.Replicator.csproj
index 3e5e787..b335db9 100644
--- a/src/Lucene.Net.Replicator/Lucene.Net.Replicator.csproj
+++ b/src/Lucene.Net.Replicator/Lucene.Net.Replicator.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Replicator</AssemblyTitle>
     <Description>Replicator that allows replication of files between a server and client(s) for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -61,7 +61,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Sandbox/Lucene.Net.Sandbox.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Sandbox/Lucene.Net.Sandbox.csproj b/src/Lucene.Net.Sandbox/Lucene.Net.Sandbox.csproj
index b827d82..7603040 100644
--- a/src/Lucene.Net.Sandbox/Lucene.Net.Sandbox.csproj
+++ b/src/Lucene.Net.Sandbox/Lucene.Net.Sandbox.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Sandbox</AssemblyTitle>
     <Description>Various third party contributions and new ideas extensions for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -56,7 +56,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Spatial/Lucene.Net.Spatial.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Spatial/Lucene.Net.Spatial.csproj b/src/Lucene.Net.Spatial/Lucene.Net.Spatial.csproj
index 50c98b2..aee03e2 100644
--- a/src/Lucene.Net.Spatial/Lucene.Net.Spatial.csproj
+++ b/src/Lucene.Net.Spatial/Lucene.Net.Spatial.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Spatial</AssemblyTitle>
     <Description>Geospatial search for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -67,7 +67,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Suggest/Lucene.Net.Suggest.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Suggest/Lucene.Net.Suggest.csproj b/src/Lucene.Net.Suggest/Lucene.Net.Suggest.csproj
index 38cf9a9..1797ba5 100644
--- a/src/Lucene.Net.Suggest/Lucene.Net.Suggest.csproj
+++ b/src/Lucene.Net.Suggest/Lucene.Net.Suggest.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.Suggest</AssemblyTitle>
     <Description>Auto-suggest and Spellchecking support for the Lucene.Net full-text search engine library from The Apache Software Foundation.</Description>
@@ -58,7 +58,7 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>-->
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Analysis/BaseTokenStreamTestCase.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Analysis/BaseTokenStreamTestCase.cs b/src/Lucene.Net.TestFramework/Analysis/BaseTokenStreamTestCase.cs
index bc3f6ee..9e5870e 100644
--- a/src/Lucene.Net.TestFramework/Analysis/BaseTokenStreamTestCase.cs
+++ b/src/Lucene.Net.TestFramework/Analysis/BaseTokenStreamTestCase.cs
@@ -694,12 +694,12 @@ namespace Lucene.Net.Analysis
                 startingGun.Signal();
                 foreach (var t in threads)
                 {
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
                     try
                     {
 #endif
                         t.Join();
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
                     }
 #pragma warning disable 168
                     catch (ThreadInterruptedException e)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Lucene.Net.TestFramework.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Lucene.Net.TestFramework.csproj b/src/Lucene.Net.TestFramework/Lucene.Net.TestFramework.csproj
index 2f9cd34..a2406a0 100644
--- a/src/Lucene.Net.TestFramework/Lucene.Net.TestFramework.csproj
+++ b/src/Lucene.Net.TestFramework/Lucene.Net.TestFramework.csproj
@@ -24,9 +24,9 @@
   <Import Project="..\..\Version.proj" />
   
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard1.5;net45</TargetFrameworks>
-    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.5' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
-    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.5' ">1.6.0</NetStandardImplicitPackageVersion>-->
+    <TargetFrameworks>netstandard2.0;netstandard1.6;net45</TargetFrameworks>
+    <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netstandard1.6' ">$(PackageTargetFallback);dnxcore50</PackageTargetFallback>
+    <!--<NetStandardImplicitPackageVersion Condition=" '$(TargetFramework)' == 'netstandard1.6' ">1.6.0</NetStandardImplicitPackageVersion>-->
 
     <AssemblyTitle>Lucene.Net.TestFramework</AssemblyTitle>
     <Description>Framework for testing Lucene.Net-based applications from The Apache Software Foundation.</Description>
@@ -66,14 +66,14 @@
     <DebugType>portable</DebugType>
   </PropertyGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <PackageReference Include="System.Diagnostics.StackTrace" Version="4.0.1" />
     <PackageReference Include="System.Diagnostics.TraceSource" Version="4.0.0" />
     <PackageReference Include="System.Net.Primitives" Version="4.3.0" />
     <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
   </ItemGroup>
 
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.5' ">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
     <DefineConstants>$(DefineConstants);NETSTANDARD;FEATURE_STACKTRACE</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Store/SlowClosingMockIndexInputWrapper.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Store/SlowClosingMockIndexInputWrapper.cs b/src/Lucene.Net.TestFramework/Store/SlowClosingMockIndexInputWrapper.cs
index fb7511e..00890fa 100644
--- a/src/Lucene.Net.TestFramework/Store/SlowClosingMockIndexInputWrapper.cs
+++ b/src/Lucene.Net.TestFramework/Store/SlowClosingMockIndexInputWrapper.cs
@@ -40,7 +40,7 @@ namespace Lucene.Net.Store
                 {
                     Thread.Sleep(50);
                 }
-//#if !NETSTANDARD1_5 // LUCENENET NOTE: Senseless to catch and rethrow the same exception type
+//#if !NETSTANDARD1_6 // LUCENENET NOTE: Senseless to catch and rethrow the same exception type
 //                catch (ThreadInterruptedException ie)
 //                {
 //                    throw new ThreadInterruptedException("Thread Interrupted Exception", ie);

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Store/SlowOpeningMockIndexInputWrapper.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Store/SlowOpeningMockIndexInputWrapper.cs b/src/Lucene.Net.TestFramework/Store/SlowOpeningMockIndexInputWrapper.cs
index 2a8c24a..6604404 100644
--- a/src/Lucene.Net.TestFramework/Store/SlowOpeningMockIndexInputWrapper.cs
+++ b/src/Lucene.Net.TestFramework/Store/SlowOpeningMockIndexInputWrapper.cs
@@ -29,12 +29,12 @@ namespace Lucene.Net.Store
         public SlowOpeningMockIndexInputWrapper(MockDirectoryWrapper dir, string name, IndexInput @delegate)
             : base(dir, name, @delegate)
         {
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
             try
             {
 #endif
                 Thread.Sleep(50);
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
             }
             catch (ThreadInterruptedException ie)
             {

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Support/ApiScanTestBase.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Support/ApiScanTestBase.cs b/src/Lucene.Net.TestFramework/Support/ApiScanTestBase.cs
index a6860d0..532de93 100644
--- a/src/Lucene.Net.TestFramework/Support/ApiScanTestBase.cs
+++ b/src/Lucene.Net.TestFramework/Support/ApiScanTestBase.cs
@@ -238,7 +238,7 @@ namespace Lucene.Net.Support
                 "the consumer if the array is not cloned using arr.ToArray().");
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         //[Test, LuceneNetSpecific]
         public virtual void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)
         {
@@ -824,7 +824,7 @@ namespace Lucene.Net.Support
             return result.ToArray();
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         private static IEnumerable<string> GetMethodsThatReturnWritableArray(Assembly assembly)
         {
             var result = new List<string>();

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Support/CultureInfoSupport.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Support/CultureInfoSupport.cs b/src/Lucene.Net.TestFramework/Support/CultureInfoSupport.cs
index f49d879..8ed288a 100644
--- a/src/Lucene.Net.TestFramework/Support/CultureInfoSupport.cs
+++ b/src/Lucene.Net.TestFramework/Support/CultureInfoSupport.cs
@@ -28,7 +28,7 @@ namespace Lucene.Net.Support
 {
     public static class CultureInfoSupport
     {
-#if NETSTANDARD1_5
+#if NETSTANDARD1_6
 
         #region culturePool
         private static string[] specificCulturePool = new string[] 
@@ -645,7 +645,7 @@ namespace Lucene.Net.Support
 
         public static CultureInfo[] GetNeutralAndSpecificCultures()
         {
-#if NETSTANDARD1_5
+#if NETSTANDARD1_6
             return supportedNeutralCultures.Union(supportedSpecificCultures).ToArray();
 #else
             return CultureInfo.GetCultures(CultureTypes.SpecificCultures | CultureTypes.NeutralCultures);

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Util/ThrottledIndexOutput.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Util/ThrottledIndexOutput.cs b/src/Lucene.Net.TestFramework/Util/ThrottledIndexOutput.cs
index 4c161cf..7a9f71b 100644
--- a/src/Lucene.Net.TestFramework/Util/ThrottledIndexOutput.cs
+++ b/src/Lucene.Net.TestFramework/Util/ThrottledIndexOutput.cs
@@ -146,12 +146,12 @@ namespace Lucene.Net.Util
             {
                 return;
             }
-//#if !NETSTANDARD1_5
+//#if !NETSTANDARD1_6
 //            try
 //            {
 //#endif 
                 Thread.Sleep(TimeSpan.FromMilliseconds(ms));
-//#if !NETSTANDARD1_5 // LUCENENET NOTE: Senseless to catch and rethrow the same exception type
+//#if !NETSTANDARD1_6 // LUCENENET NOTE: Senseless to catch and rethrow the same exception type
 //            }
 //            catch (ThreadInterruptedException e)
 //            {

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.TestFramework/Util/VirtualMethod.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.TestFramework/Util/VirtualMethod.cs b/src/Lucene.Net.TestFramework/Util/VirtualMethod.cs
index dd2cd37..e4a9696 100644
--- a/src/Lucene.Net.TestFramework/Util/VirtualMethod.cs
+++ b/src/Lucene.Net.TestFramework/Util/VirtualMethod.cs
@@ -2,7 +2,7 @@ using Lucene.Net.Support;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
-#if NETSTANDARD1_5
+#if NETSTANDARD1_6
 using System.Linq;
 #endif
 using System.Reflection;
@@ -169,7 +169,7 @@ namespace Lucene.Net.Util
 
         private MethodInfo GetMethod(Type clazz, string methodName, BindingFlags bindingFlags, Type[] methodParameters)
         {
-#if NETSTANDARD1_5
+#if NETSTANDARD1_6
             var methods = clazz.GetTypeInfo().GetMethods(bindingFlags).Where(x => {
                 return x.Name.Equals(methodName, StringComparison.Ordinal)
                     && x.GetParameters().Select(y => y.ParameterType).SequenceEqual(methodParameters);

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Common/Lucene.Net.Tests.Analysis.Common.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Common/Lucene.Net.Tests.Analysis.Common.csproj b/src/Lucene.Net.Tests.Analysis.Common/Lucene.Net.Tests.Analysis.Common.csproj
index 0735ec0..e5a99bf 100644
--- a/src/Lucene.Net.Tests.Analysis.Common/Lucene.Net.Tests.Analysis.Common.csproj
+++ b/src/Lucene.Net.Tests.Analysis.Common/Lucene.Net.Tests.Analysis.Common.csproj
@@ -64,7 +64,7 @@
   </PropertyGroup>
   
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD;NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD;NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Common/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Common/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Analysis.Common/Support/TestApiConsistency.cs
index 1aadc62..d849a78 100644
--- a/src/Lucene.Net.Tests.Analysis.Common/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Analysis.Common/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Analysis
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Analysis.Standard.ClassicAnalyzer))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Kuromoji/Lucene.Net.Tests.Analysis.Kuromoji.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Kuromoji/Lucene.Net.Tests.Analysis.Kuromoji.csproj b/src/Lucene.Net.Tests.Analysis.Kuromoji/Lucene.Net.Tests.Analysis.Kuromoji.csproj
index ab95f04..4ff4906 100644
--- a/src/Lucene.Net.Tests.Analysis.Kuromoji/Lucene.Net.Tests.Analysis.Kuromoji.csproj
+++ b/src/Lucene.Net.Tests.Analysis.Kuromoji/Lucene.Net.Tests.Analysis.Kuromoji.csproj
@@ -66,7 +66,7 @@
   </ItemGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Kuromoji/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Kuromoji/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Analysis.Kuromoji/Support/TestApiConsistency.cs
index 50d9119..f21cbde 100644
--- a/src/Lucene.Net.Tests.Analysis.Kuromoji/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Analysis.Kuromoji/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Analysis.Ja.Support
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Analysis.Ja.GraphvizFormatter))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Phonetic/Lucene.Net.Tests.Analysis.Phonetic.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Phonetic/Lucene.Net.Tests.Analysis.Phonetic.csproj b/src/Lucene.Net.Tests.Analysis.Phonetic/Lucene.Net.Tests.Analysis.Phonetic.csproj
index 5067fc3..498e351 100644
--- a/src/Lucene.Net.Tests.Analysis.Phonetic/Lucene.Net.Tests.Analysis.Phonetic.csproj
+++ b/src/Lucene.Net.Tests.Analysis.Phonetic/Lucene.Net.Tests.Analysis.Phonetic.csproj
@@ -62,7 +62,7 @@
   </PropertyGroup>
   
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD;NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD;NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Phonetic/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Phonetic/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Analysis.Phonetic/Support/TestApiConsistency.cs
index 149f6ad..542b8bb 100644
--- a/src/Lucene.Net.Tests.Analysis.Phonetic/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Analysis.Phonetic/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Analysis.Phonetic
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Analysis.Phonetic.BeiderMorseFilter))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.SmartCn/Lucene.Net.Tests.Analysis.SmartCn.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.SmartCn/Lucene.Net.Tests.Analysis.SmartCn.csproj b/src/Lucene.Net.Tests.Analysis.SmartCn/Lucene.Net.Tests.Analysis.SmartCn.csproj
index da684c8..ef4a5e5d 100644
--- a/src/Lucene.Net.Tests.Analysis.SmartCn/Lucene.Net.Tests.Analysis.SmartCn.csproj
+++ b/src/Lucene.Net.Tests.Analysis.SmartCn/Lucene.Net.Tests.Analysis.SmartCn.csproj
@@ -69,7 +69,7 @@
   </ItemGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.SmartCn/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.SmartCn/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Analysis.SmartCn/Support/TestApiConsistency.cs
index 227d346..a0dcf4e 100644
--- a/src/Lucene.Net.Tests.Analysis.SmartCn/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Analysis.SmartCn/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Analysis.Cn.Smart.Support
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Analysis.Cn.Smart.AnalyzerProfile))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Stempel/Lucene.Net.Tests.Analysis.Stempel.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Stempel/Lucene.Net.Tests.Analysis.Stempel.csproj b/src/Lucene.Net.Tests.Analysis.Stempel/Lucene.Net.Tests.Analysis.Stempel.csproj
index c4df6ff..ebd4f6a 100644
--- a/src/Lucene.Net.Tests.Analysis.Stempel/Lucene.Net.Tests.Analysis.Stempel.csproj
+++ b/src/Lucene.Net.Tests.Analysis.Stempel/Lucene.Net.Tests.Analysis.Stempel.csproj
@@ -62,7 +62,7 @@
   </PropertyGroup>
   
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Analysis.Stempel/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Analysis.Stempel/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Analysis.Stempel/Support/TestApiConsistency.cs
index ca268bf..eaf90be 100644
--- a/src/Lucene.Net.Tests.Analysis.Stempel/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Analysis.Stempel/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Analysis.Stempel
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Analysis.Stempel.StempelFilter))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Benchmark/Lucene.Net.Tests.Benchmark.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Benchmark/Lucene.Net.Tests.Benchmark.csproj b/src/Lucene.Net.Tests.Benchmark/Lucene.Net.Tests.Benchmark.csproj
index 4f8ea71..1cebdd9 100644
--- a/src/Lucene.Net.Tests.Benchmark/Lucene.Net.Tests.Benchmark.csproj
+++ b/src/Lucene.Net.Tests.Benchmark/Lucene.Net.Tests.Benchmark.csproj
@@ -70,7 +70,7 @@
   </ItemGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Benchmark/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Benchmark/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Benchmark/Support/TestApiConsistency.cs
index 2e5ddc1..49776c9 100644
--- a/src/Lucene.Net.Tests.Benchmark/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Benchmark/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Benchmarks.Support
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Benchmarks.Constants))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Classification/Lucene.Net.Tests.Classification.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Classification/Lucene.Net.Tests.Classification.csproj b/src/Lucene.Net.Tests.Classification/Lucene.Net.Tests.Classification.csproj
index 3d748ce..b1d0722 100644
--- a/src/Lucene.Net.Tests.Classification/Lucene.Net.Tests.Classification.csproj
+++ b/src/Lucene.Net.Tests.Classification/Lucene.Net.Tests.Classification.csproj
@@ -62,7 +62,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Classification/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Classification/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Classification/Support/TestApiConsistency.cs
index af3ce69..def796f 100644
--- a/src/Lucene.Net.Tests.Classification/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Classification/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Classification
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Classification.KNearestNeighborClassifier))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Codecs/Lucene.Net.Tests.Codecs.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Codecs/Lucene.Net.Tests.Codecs.csproj b/src/Lucene.Net.Tests.Codecs/Lucene.Net.Tests.Codecs.csproj
index 241c972..16387ad 100644
--- a/src/Lucene.Net.Tests.Codecs/Lucene.Net.Tests.Codecs.csproj
+++ b/src/Lucene.Net.Tests.Codecs/Lucene.Net.Tests.Codecs.csproj
@@ -63,7 +63,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD;NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD;NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Codecs/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Codecs/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Codecs/Support/TestApiConsistency.cs
index 16870b1..20d7784 100644
--- a/src/Lucene.Net.Tests.Codecs/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Codecs/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Codecs.Tests
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Codecs.BlockTerms.BlockTermsReader))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Expressions/Lucene.Net.Tests.Expressions.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Expressions/Lucene.Net.Tests.Expressions.csproj b/src/Lucene.Net.Tests.Expressions/Lucene.Net.Tests.Expressions.csproj
index 919598b..0564757 100644
--- a/src/Lucene.Net.Tests.Expressions/Lucene.Net.Tests.Expressions.csproj
+++ b/src/Lucene.Net.Tests.Expressions/Lucene.Net.Tests.Expressions.csproj
@@ -62,7 +62,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Expressions/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Expressions/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Expressions/Support/TestApiConsistency.cs
index 0c87919..c1eb4c4 100644
--- a/src/Lucene.Net.Tests.Expressions/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Expressions/Support/TestApiConsistency.cs
@@ -83,7 +83,7 @@ namespace Lucene.Net.Expressions
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Expressions.Bindings))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Facet/Lucene.Net.Tests.Facet.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Facet/Lucene.Net.Tests.Facet.csproj b/src/Lucene.Net.Tests.Facet/Lucene.Net.Tests.Facet.csproj
index 6fc3378..30ad1c1 100644
--- a/src/Lucene.Net.Tests.Facet/Lucene.Net.Tests.Facet.csproj
+++ b/src/Lucene.Net.Tests.Facet/Lucene.Net.Tests.Facet.csproj
@@ -63,7 +63,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Facet/SlowRAMDirectory.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Facet/SlowRAMDirectory.cs b/src/Lucene.Net.Tests.Facet/SlowRAMDirectory.cs
index 4cff489..28da740 100644
--- a/src/Lucene.Net.Tests.Facet/SlowRAMDirectory.cs
+++ b/src/Lucene.Net.Tests.Facet/SlowRAMDirectory.cs
@@ -80,12 +80,12 @@ namespace Lucene.Net.Facet
             {
                 sTime = random.Next(sTime);
             }
-//#if !NETSTANDARD1_5
+//#if !NETSTANDARD1_6
 //            try
 //            {
 //#endif
                 Thread.Sleep(sTime);
-//#if !NETSTANDARD1_5
+//#if !NETSTANDARD1_6
 //            }
 //            catch (ThreadInterruptedException e) // LUCENENET NOTE: Senseless to catch and rethrow the same exception type
 //            {

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Facet/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Facet/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Facet/Support/TestApiConsistency.cs
index 9f161fa..5b9b189 100644
--- a/src/Lucene.Net.Tests.Facet/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Facet/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Tests.Facet
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Facet.Facets))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Grouping/Lucene.Net.Tests.Grouping.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Grouping/Lucene.Net.Tests.Grouping.csproj b/src/Lucene.Net.Tests.Grouping/Lucene.Net.Tests.Grouping.csproj
index 0047c86..bc2f293 100644
--- a/src/Lucene.Net.Tests.Grouping/Lucene.Net.Tests.Grouping.csproj
+++ b/src/Lucene.Net.Tests.Grouping/Lucene.Net.Tests.Grouping.csproj
@@ -62,7 +62,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Grouping/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Grouping/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Grouping/Support/TestApiConsistency.cs
index fbe4acc..bbbbea8 100644
--- a/src/Lucene.Net.Tests.Grouping/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Grouping/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Tests.Grouping
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Search.Grouping.ICollectedSearchGroup))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Highlighter/Lucene.Net.Tests.Highlighter.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Highlighter/Lucene.Net.Tests.Highlighter.csproj b/src/Lucene.Net.Tests.Highlighter/Lucene.Net.Tests.Highlighter.csproj
index 138e058..3445812 100644
--- a/src/Lucene.Net.Tests.Highlighter/Lucene.Net.Tests.Highlighter.csproj
+++ b/src/Lucene.Net.Tests.Highlighter/Lucene.Net.Tests.Highlighter.csproj
@@ -67,7 +67,7 @@
   </ItemGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Highlighter/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Highlighter/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Highlighter/Support/TestApiConsistency.cs
index 43e2f56..098aeb1 100644
--- a/src/Lucene.Net.Tests.Highlighter/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Highlighter/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Search
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Search.Highlight.DefaultEncoder))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Join/Lucene.Net.Tests.Join.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Join/Lucene.Net.Tests.Join.csproj b/src/Lucene.Net.Tests.Join/Lucene.Net.Tests.Join.csproj
index 6fb634b..048b569 100644
--- a/src/Lucene.Net.Tests.Join/Lucene.Net.Tests.Join.csproj
+++ b/src/Lucene.Net.Tests.Join/Lucene.Net.Tests.Join.csproj
@@ -62,7 +62,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Join/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Join/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Join/Support/TestApiConsistency.cs
index a9a5e16..feb4475 100644
--- a/src/Lucene.Net.Tests.Join/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Join/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Join
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Join.FakeScorer))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Memory/Lucene.Net.Tests.Memory.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Memory/Lucene.Net.Tests.Memory.csproj b/src/Lucene.Net.Tests.Memory/Lucene.Net.Tests.Memory.csproj
index 04ccca8..b3c3de9 100644
--- a/src/Lucene.Net.Tests.Memory/Lucene.Net.Tests.Memory.csproj
+++ b/src/Lucene.Net.Tests.Memory/Lucene.Net.Tests.Memory.csproj
@@ -63,7 +63,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>
 

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Memory/Support/TestApiConsistency.cs
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Memory/Support/TestApiConsistency.cs b/src/Lucene.Net.Tests.Memory/Support/TestApiConsistency.cs
index 1c0fb22..267fde1 100644
--- a/src/Lucene.Net.Tests.Memory/Support/TestApiConsistency.cs
+++ b/src/Lucene.Net.Tests.Memory/Support/TestApiConsistency.cs
@@ -87,7 +87,7 @@ namespace Lucene.Net.Tests.Memory
             base.TestForPropertiesThatReturnArray(typeFromTargetAssembly);
         }
 
-#if !NETSTANDARD1_5
+#if !NETSTANDARD1_6
         [Test, LuceneNetSpecific]
         [TestCase(typeof(Lucene.Net.Index.Memory.MemoryIndex))]
         public override void TestForMethodsThatReturnWritableArray(Type typeFromTargetAssembly)

http://git-wip-us.apache.org/repos/asf/lucenenet/blob/bf2b3ab8/src/Lucene.Net.Tests.Misc/Lucene.Net.Tests.Misc.csproj
----------------------------------------------------------------------
diff --git a/src/Lucene.Net.Tests.Misc/Lucene.Net.Tests.Misc.csproj b/src/Lucene.Net.Tests.Misc/Lucene.Net.Tests.Misc.csproj
index 4c2a3cc..60a94e2 100644
--- a/src/Lucene.Net.Tests.Misc/Lucene.Net.Tests.Misc.csproj
+++ b/src/Lucene.Net.Tests.Misc/Lucene.Net.Tests.Misc.csproj
@@ -61,7 +61,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <DefineConstants>$(DefineConstants);NETSTANDARD1_5</DefineConstants>
+    <DefineConstants>$(DefineConstants);NETSTANDARD1_6</DefineConstants>
     <DebugType>portable</DebugType>
   </PropertyGroup>