Update license, lang-version and style config

.editorconfig

@@ -1,5 +1,5 @@
-# Version: 2.1.0 (Using https://semver.org/)
-# Updated: 2021-03-03
+# Version: 4.1.1 (Using https://semver.org/)
+# Updated: 2022-05-23
 # See https://github.com/RehanSaeed/EditorConfig/releases for release notes.
 # See https://github.com/RehanSaeed/EditorConfig for updates to this file.
 # See http://EditorConfig.org for more information about .editorconfig files.
@@ -49,11 +49,11 @@ indent_size = 2
 indent_size = 2
 
 # Markdown Files
-[*.md]
+[*.{md,mdx}]
 trim_trailing_whitespace = false
 
 # Web Files
-[*.{htm,html,js,jsm,ts,tsx,css,sass,scss,less,svg,vue}]
+[*.{htm,html,js,jsm,ts,tsx,cjs,cts,ctsx,mjs,mts,mtsx,css,sass,scss,less,pcss,svg,vue}]
 indent_size = 2
 
 # Batch Files
@@ -75,7 +75,7 @@ indent_style = tab
 
 [*.{cs,csx,cake,vb,vbx}]
 # Default Severity for all .NET Code Style rules below
-dotnet_analyzer_diagnostic.category-style.severity = warning
+dotnet_analyzer_diagnostic.severity = warning
 
 ##########################################
 # Language Rules
@@ -122,13 +122,13 @@ dotnet_style_coalesce_expression = true:warning
 dotnet_style_null_propagation = true:warning
 dotnet_style_prefer_is_null_check_over_reference_equality_method = true:warning
 # File header preferences
-file_header_template = Copyright (c) Six Labors.\nLicensed under the Apache License, Version 2.0.
+file_header_template = Copyright (c) Six Labors.\nLicensed under the Six Labors Split License.
 # SA1636: File header copyright text should match
 # Justification: .editorconfig supports file headers. If this is changed to a value other than "none", a stylecop.json file will need to added to the project.
 # dotnet_diagnostic.SA1636.severity = none
-
 # Undocumented
-dotnet_style_operator_placement_when_wrapping = end_of_line
+dotnet_style_operator_placement_when_wrapping = end_of_line:warning
+csharp_style_prefer_null_check_over_type_check = true:warning
 
 # C# Style Rules
 # https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/language-rules#c-style-rules
@@ -200,12 +200,15 @@ dotnet_diagnostic.IDE0059.severity = suggestion
 # Organize using directives
 dotnet_sort_system_directives_first = true
 dotnet_separate_import_directive_groups = false
+# Dotnet namespace options
+dotnet_style_namespace_match_folder = true:suggestion
+dotnet_diagnostic.IDE0130.severity = suggestion
 
 # C# formatting rules
 # https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#c-formatting-rules
 [*.{cs,csx,cake}]
 # Newline options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#new-line-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#new-line-options
 csharp_new_line_before_open_brace = all
 csharp_new_line_before_else = true
 csharp_new_line_before_catch = true
@@ -214,15 +217,15 @@ csharp_new_line_before_members_in_object_initializers = true
 csharp_new_line_before_members_in_anonymous_types = true
 csharp_new_line_between_query_expression_clauses = true
 # Indentation options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#indentation-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#indentation-options
 csharp_indent_case_contents = true
 csharp_indent_switch_labels = true
 csharp_indent_labels = no_change
 csharp_indent_block_contents = true
 csharp_indent_braces = false
 csharp_indent_case_contents_when_block = false
 # Spacing options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#spacing-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#spacing-options
 csharp_space_after_cast = false
 csharp_space_after_keywords_in_control_flow_statements = true
 csharp_space_between_parentheses = false
@@ -246,9 +249,12 @@ csharp_space_before_open_square_brackets = false
 csharp_space_between_empty_square_brackets = false
 csharp_space_between_square_brackets = false
 # Wrap options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#wrap-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#wrap-options
 csharp_preserve_single_line_statements = false
 csharp_preserve_single_line_blocks = true
+# Namespace options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#namespace-options
+csharp_style_namespace_declarations = file_scoped:warning
 
 ##########################################
 # .NET Naming Rules
@@ -275,9 +281,8 @@ dotnet_naming_style.prefix_type_parameters_with_t_style.capitalization = pascal_
 dotnet_naming_style.prefix_type_parameters_with_t_style.required_prefix = T
 # disallowed_style - Anything that has this style applied is marked as disallowed
 dotnet_naming_style.disallowed_style.capitalization  = pascal_case
-# Disabled while we investigate compatibility with VS 16.10
-#dotnet_naming_style.disallowed_style.required_prefix = ____RULE_VIOLATION____
-#dotnet_naming_style.disallowed_style.required_suffix = ____RULE_VIOLATION____
+dotnet_naming_style.disallowed_style.required_prefix = ____RULE_VIOLATION____
+dotnet_naming_style.disallowed_style.required_suffix = ____RULE_VIOLATION____
 # internal_error_style - This style should never occur... if it does, it indicates a bug in file or in the parser using the file
 dotnet_naming_style.internal_error_style.capitalization  = pascal_case
 dotnet_naming_style.internal_error_style.required_prefix = ____INTERNAL_ERROR____

msbuild/props/SixLabors.Global.props

@@ -12,7 +12,7 @@
 
   <!-- 
     Define Environmental conditionals. Determined by environmental settings set in build-and-test.yml 
-    These proeprties are defined 2X to ensure both MSBuild and Visual Studio (preprocessor directives)
+    These properties are defined 2X to ensure both MSBuild and Visual Studio (preprocessor directives)
     can correctly detect them.
     -->
   <PropertyGroup>
@@ -62,7 +62,7 @@
 
   <!-- Compilation settings that explicitly differ from the Sdk.props/targets defaults  -->
   <PropertyGroup>
-    <LangVersion>9.0</LangVersion>
+    <LangVersion>10.0</LangVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Features>strict;IOperation</Features>
     <HighEntropyVA>true</HighEntropyVA>

sixlabors.ruleset

@@ -1,9 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RuleSet Name="SixLabors" ToolsVersion="16.0">
-  <Rules AnalyzerId="Microsoft.CodeAnalysis.CSharp.Features" RuleNamespace="Microsoft.CodeAnalysis.CSharp.Features">
-    <Rule Id="IDE0056" Action="None" />
-    <Rule Id="IDE0057" Action="None" />
-  </Rules>
+<RuleSet Name="SixLabors" ToolsVersion="17.0">
   <Rules AnalyzerId="Roslynator.CSharp.Analyzers" RuleNamespace="Roslynator.CSharp">
     <Rule Id="RCS1090" Action="None" />
   </Rules>

sixlabors.tests.ruleset

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RuleSet Name="SixLabors.Tests" ToolsVersion="16.0">
+<RuleSet Name="SixLabors.Tests" ToolsVersion="17.0">
   <Include Path="sixlabors.ruleset" Action="Default" />
   <Rules AnalyzerId="Microsoft.CodeAnalysis.CSharp" RuleNamespace="Microsoft.CodeAnalysis.CSharp">
     <Rule Id="CS1591" Action="None" />

stylecop.json

@@ -10,7 +10,7 @@
     "documentationRules": {
       "xmlHeader": false,
       "documentInternalElements": false,
-      "copyrightText": "Copyright (c) Six Labors.\nLicensed under the Apache License, Version 2.0."
+      "copyrightText": "Copyright (c) Six Labors.\nLicensed under the Six Labors Split License."
     }
   }
 }