Set the version to 3.0.0 for release.

Updated the release notes with the changes in this release.

MetaBrainz.Common.Json/MetaBrainz.Common.Json.csproj

@@ -5,7 +5,7 @@
     <Title>Common JSON Utilities</Title>
     <Description>This package provides JSON-related utility classes used by other MetaBrainz packages.</Description>
     <PackageTags>MetaBrainz JSON</PackageTags>
-    <Version>2.1.0-pre</Version>
+    <Version>3.0.0</Version>
   </PropertyGroup>
 
   <PropertyGroup>

README.md

@@ -1,9 +1,23 @@
-# MetaBrainz.Common.Json  [![Build Status](https://img.shields.io/appveyor/build/zastai/metabrainz-common-json)](https://ci.appveyor.com/project/Zastai/metabrainz-common-json) [![NuGet Version](https://img.shields.io/nuget/v/MetaBrainz.Common.Json)](https://www.nuget.org/packages/MetaBrainz.Common.Json)
+# MetaBrainz.Common.Json [![Build Status](https://img.shields.io/appveyor/build/zastai/metabrainz-common-json)](https://ci.appveyor.com/project/Zastai/metabrainz-common-json) [![NuGet Version](https://img.shields.io/nuget/v/MetaBrainz.Common.Json)](https://www.nuget.org/packages/MetaBrainz.Common.Json)
 
 JSON-related helper classes, for use by the other `MetaBrainz.*` packages.
 
 ## Release Notes
 
+### v3.0.0 (2020-04-25)
+
+#### API Additions
+
+- New Extension Method Overload: `JsonUtils.GetObject<T>()` without a specific converter to use
+- New Extension Method Overload: `JsonUtils.GetOptionalObject<T>()` without a specific converter to use
+
+#### API Changes
+
+- JsonBasedObject: this once again has a regular `Dictionary` as `UnhandledProperties`
+  - this allows implementation types to modify the contents after the initial object creation
+  - *this is, unfortunately, a breaking change*
+
+
 ### v2.0.0 (2020-04-24)
 
 #### API Additions
@@ -54,10 +68,6 @@ JSON-related helper classes, for use by the other `MetaBrainz.*` packages.
 - `InterfaceConverter` and `ReadOnlyListOfInterfaceConverter` have been removed
   - the MetaBrainz libraries are switching to custom converters for everything, removing the need for these
 
-#### Other Changes
-
-#### Dependency Updates
-
 
 ### v1.1.1 (2020-04-16)
 

appveyor.yml

@@ -1,4 +1,4 @@
-version: 2.1.0-appveyor.{build}
+version: 3.0.0
 image: Visual Studio 2019
 configuration: Debug
 install: