Update version numbers and release notes

Author: Chris Martinez

src/Microsoft.AspNet.WebApi.Versioning.ApiExplorer/ReleaseNotes.txt

@@ -1 +1 @@
-
+None

src/Microsoft.AspNet.WebApi.Versioning/ReleaseNotes.txt

@@ -1 +1,2 @@
-HttpControllerDescriptorExtensions.AsEnumerable is now public
+CORS preflight request results in error (#619)
+HttpControllerDescriptorExtensions.AsEnumerable is now public

src/Microsoft.AspNetCore.Mvc.Versioning.ApiExplorer/Microsoft.AspNetCore.Mvc.Versioning.ApiExplorer.csproj

@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
  <PropertyGroup>
-  <VersionPrefix>4.1.1</VersionPrefix>
-  <AssemblyVersion>4.1.0.0</AssemblyVersion>
+  <VersionPrefix>4.2.0</VersionPrefix>
+  <AssemblyVersion>4.2.0.0</AssemblyVersion>
   <TargetFramework>netcoreapp3.1</TargetFramework>
   <AssemblyTitle>Microsoft ASP.NET Core API Versioning</AssemblyTitle>
   <Description>ASP.NET Core MVC API explorer functionality for discovering metadata such as the list of API-versioned controllers and actions, and their URLs and allowed HTTP methods.</Description>

src/Microsoft.AspNetCore.Mvc.Versioning.ApiExplorer/ReleaseNotes.txt

@@ -1 +1 @@
-Drop support for .NET Core 2.2
+None

src/Microsoft.AspNetCore.Mvc.Versioning/Microsoft.AspNetCore.Mvc.Versioning.csproj

@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
  <PropertyGroup>
-  <VersionPrefix>4.1.1</VersionPrefix>
-  <AssemblyVersion>4.1.0.0</AssemblyVersion>
+  <VersionPrefix>4.2.0</VersionPrefix>
+  <AssemblyVersion>4.2.0.0</AssemblyVersion>
   <TargetFramework>netcoreapp3.1</TargetFramework>
   <AssemblyTitle>Microsoft ASP.NET Core API Versioning</AssemblyTitle>
   <Description>A service API versioning library for Microsoft ASP.NET Core.</Description>

src/Microsoft.AspNetCore.Mvc.Versioning/ReleaseNotes.txt

@@ -1 +1,3 @@
-Drop support for .NET Core 2.2
+ApiVersionMatcherPolicy doesn't check candidate validity (#600)
+Fix NuGET Part URI cannot start with two forward slashes (#637)
+Error response provider should return ProblemDetails (#612)

src/Microsoft.AspNetCore.OData.Versioning.ApiExplorer/ReleaseNotes.txt

@@ -1 +1 @@
-Drop support for .NET Core 2.2
+

src/Microsoft.AspNetCore.OData.Versioning/ReleaseNotes.txt

@@ -1 +1 @@
-Drop support for .NET Core 2.2
+