Lowered LangVersion set for target frameworks (ideally 7.3)

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/configure-language-version

Author: niemyjski

build/common.props

@@ -11,7 +11,7 @@
     <Authors>Exceptionless</Authors>
     <NoWarn>$(NoWarn);CS1591;NU1701</NoWarn>
     <WarningsAsErrors>true</WarningsAsErrors>
-    <LangVersion>preview</LangVersion>
+    <LangVersion>9.0</LangVersion>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageOutputPath>$(SolutionDir)artifacts</PackageOutputPath>
     <PackageIcon>exceptionless-icon.png</PackageIcon>

samples/Exceptionless.SampleAspNetCore/Exceptionless.SampleAspNetCore.csproj

@@ -1,5 +1,4 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
-
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>

samples/Exceptionless.SampleHosting/Exceptionless.SampleHosting.csproj

@@ -1,5 +1,4 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
-
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>

samples/Exceptionless.SampleLambda/Exceptionless.SampleLambda.csproj

@@ -1,8 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
-    <LangVersion>latest</LangVersion>
     <AWSProjectType>Lambda</AWSProjectType>
 
     <!-- This property makes the build directory similar to a publish directory and helps the AWS .NET Lambda Mock Test Tool find project dependencies. -->

samples/Exceptionless.SampleMvc/Web.config

@@ -69,7 +69,7 @@
     </handlers></system.webServer>
   <system.codedom>
     <compilers>
-      <compiler extension=".cs" language="c#;cs;csharp" warningLevel="4" compilerOptions="/langversion:7.3 /nowarn:1659;1699;1701;612;618" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=3.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
+      <compiler extension=".cs" language="c#;cs;csharp" warningLevel="4" compilerOptions="/langversion:default /nowarn:1659;1699;1701;612;618" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=3.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
       <compiler extension=".vb" language="vb;vbs;visualbasic;vbscript" warningLevel="4" compilerOptions="/langversion:default /nowarn:41008,40000,40008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=3.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
     </compilers>
   </system.codedom>

src/Exceptionless/Submission/SettingsResponse.cs

@@ -3,9 +3,9 @@
 
 namespace Exceptionless.Submission {
     public class SettingsResponse {
-        internal static SettingsResponse NotModified { get; } = new(success: false, message: "Settings have not been modified.");
-        internal static SettingsResponse InvalidConfig { get; } = new(success: false, message: "Invalid configuration settings.");
-        internal static SettingsResponse InvalidClientConfig { get; } = new(success: false, message: "Invalid client configuration settings.");
+        internal static SettingsResponse NotModified { get; } = new SettingsResponse(success: false, message: "Settings have not been modified.");
+        internal static SettingsResponse InvalidConfig { get; } = new SettingsResponse(success: false, message: "Invalid configuration settings.");
+        internal static SettingsResponse InvalidClientConfig { get; } = new SettingsResponse(success: false, message: "Invalid client configuration settings.");
 
         public SettingsResponse(bool success, SettingsDictionary settings = null, int settingsVersion = -1, Exception exception = null, string message = null) {
             Success = success;

src/Exceptionless/Submission/SubmissionResponse.cs

@@ -3,8 +3,8 @@
 
 namespace Exceptionless.Submission {
     public class SubmissionResponse {
-        internal static SubmissionResponse Ok200 { get; } = new(200, "OK");
-        internal static SubmissionResponse InvalidClientConfig500 { get; } = new(500, "Invalid client configuration settings");
+        internal static SubmissionResponse Ok200 { get; } = new SubmissionResponse(200, "OK");
+        internal static SubmissionResponse InvalidClientConfig500 { get; } = new SubmissionResponse(500, "Invalid client configuration settings");
 
         public SubmissionResponse(int statusCode, string message = null, Exception exception = null) {
             StatusCode = statusCode;