diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index dd8fde77..895bf0e3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.5.0"
+  ".": "2.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 929d2c66..6cae7829 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,26 @@
 # Changelog
 
+## [2.0.0](https://github.com/open-feature/dotnet-sdk/compare/v1.5.0...v2.0.0) (2024-04-11)
+
+
+### ⚠ BREAKING CHANGES
+
+* Enable nullable reference types ([#253](https://github.com/open-feature/dotnet-sdk/issues/253))
+
+### 🐛 Bug Fixes
+
+* Add missing error message when an error occurred ([#256](https://github.com/open-feature/dotnet-sdk/issues/256)) ([949d53c](https://github.com/open-feature/dotnet-sdk/commit/949d53cada68bee8e80d113357fa6df8d425d3c1))
+
+
+### 🧹 Chore
+
+* **deps:** Project file cleanup and remove unnecessary dependencies ([#251](https://github.com/open-feature/dotnet-sdk/issues/251)) ([79def47](https://github.com/open-feature/dotnet-sdk/commit/79def47106b19b316b691fa195f7160ddcfb9a41))
+* **deps:** update codecov/codecov-action action to v4 ([#227](https://github.com/open-feature/dotnet-sdk/issues/227)) ([11a0333](https://github.com/open-feature/dotnet-sdk/commit/11a03332726f07dd0327d222e6bd6e1843db460c))
+* **deps:** update dependency coverlet.collector to v6.0.2 ([#247](https://github.com/open-feature/dotnet-sdk/issues/247)) ([ab34c16](https://github.com/open-feature/dotnet-sdk/commit/ab34c16b513ddbd0a53e925baaccd088163fbcc8))
+* **deps:** update dependency coverlet.msbuild to v6.0.2 ([#239](https://github.com/open-feature/dotnet-sdk/issues/239)) ([e654222](https://github.com/open-feature/dotnet-sdk/commit/e6542222827cc25cd5a1acc5af47ce55149c0623))
+* Enable nullable reference types ([#253](https://github.com/open-feature/dotnet-sdk/issues/253)) ([5a5312c](https://github.com/open-feature/dotnet-sdk/commit/5a5312cc082ccd880b65165135e05b4f3b035df7))
+* prompt 2.0 ([9b9c3fd](https://github.com/open-feature/dotnet-sdk/commit/9b9c3fd09c27b191104d7ceaa726b6edd71fcd06))
+
 ## [1.5.0](https://github.com/open-feature/dotnet-sdk/compare/v1.4.1...v1.5.0) (2024-03-12)
 
 
diff --git a/README.md b/README.md
index 6cb3c35c..1c20ce39 100644
--- a/README.md
+++ b/README.md
@@ -9,8 +9,8 @@
 
 [![Specification](https://img.shields.io/static/v1?label=specification&message=v0.7.0&color=yellow&style=for-the-badge)](https://github.com/open-feature/spec/releases/tag/v0.7.0)
 [
-  ![Release](https://img.shields.io/static/v1?label=release&message=v1.5.0&color=blue&style=for-the-badge) <!-- x-release-please-version -->
-](https://github.com/open-feature/dotnet-sdk/releases/tag/v1.5.0) <!-- x-release-please-version -->
+  ![Release](https://img.shields.io/static/v1?label=release&message=v2.0.0&color=blue&style=for-the-badge) <!-- x-release-please-version -->
+](https://github.com/open-feature/dotnet-sdk/releases/tag/v2.0.0) <!-- x-release-please-version -->
 
 [![Slack](https://img.shields.io/badge/slack-%40cncf%2Fopenfeature-brightgreen?style=flat&logo=slack)](https://cloud-native.slack.com/archives/C0344AANLA1)
 [![Codecov](https://codecov.io/gh/open-feature/dotnet-sdk/branch/main/graph/badge.svg?token=MONAVJBXUJ)](https://codecov.io/gh/open-feature/dotnet-sdk)
diff --git a/build/Common.prod.props b/build/Common.prod.props
index 2431a810..656f3476 100644
--- a/build/Common.prod.props
+++ b/build/Common.prod.props
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <VersionNumber>1.5.0</VersionNumber> <!--x-release-please-version -->
+    <VersionNumber>2.0.0</VersionNumber> <!--x-release-please-version -->
     <RepositoryType>git</RepositoryType>
     <RepositoryUrl>https://github.com/open-feature/dotnet-sdk</RepositoryUrl>
     <Description>OpenFeature is an open standard for feature flag management, created to support a robust feature flag ecosystem using cloud native technologies. OpenFeature will provide a unified API and SDK, and a developer-first, cloud-native implementation, with extensibility for open source and commercial offerings.</Description>
diff --git a/version.txt b/version.txt
index bc80560f..227cea21 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.5.0
+2.0.0