diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62e0336..eff5fe2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,43 @@
+### Version: 3.0.0
+#### Date: Jun-15-2026
+
+##### Feat:
+- Migrated all internal JSON handling to `System.Text.Json`
+- Added `ApiErrorBodyParser` for consistent API error envelope parsing
+- Added `JsonNodeConversion` and `JsonObjectMerge` utilities to replace Newtonsoft equivalents
+- Added `ContentstackJsonDefaults` — shared `JsonSerializerOptions` used across all custom converters
+
+##### Enh:
+- Replaced `Console.WriteLine` with `Debug.WriteLine` in `ContentstackConvert` to suppress parse warnings from application stdout
+
+##### Chore:
+- Updated .NET version in SCA scan CI from `7.0.x` to `10.0.x`
+
+---
+
+### Version: 3.0.0-beta.1
+#### Date: May-04-2026
+
+##### Breaking Changes:
+- Removed `Newtonsoft.Json` dependency; all JSON serialisation now uses `System.Text.Json` (BCL)
+  - `AssetJsonConverter` and `EntryJsonConverter` now implement `System.Text.Json.Serialization.JsonConverter<T>`
+  - `ContentstackCollection<T>` no longer carries `[JsonObject]`; direct `JsonSerializer` usage on this type is not supported
+- Updated `contentstack.utils` from `1.0.6` to `2.0.0-beta.1` (major version bump)
+
+##### Feat:
+- Migrated all internal JSON handling to `System.Text.Json`
+- Added `ApiErrorBodyParser` for consistent API error envelope parsing
+- Added `JsonNodeConversion` and `JsonObjectMerge` utilities to replace Newtonsoft equivalents
+- Added `ContentstackJsonDefaults` — shared `JsonSerializerOptions` used across all custom converters
+
+##### Enh:
+- Replaced `Console.WriteLine` with `Debug.WriteLine` in `ContentstackConvert` to suppress parse warnings from application stdout
+
+##### Chore:
+- Updated .NET version in SCA scan CI from `7.0.x` to `10.0.x`
+
+---
+
 ### Version: 2.26.0
 #### Date: Feb-10-2026
 
diff --git a/Directory.Build.props b/Directory.Build.props
index 6c70934..1f737f6 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,5 +1,5 @@
 <Project>
   <PropertyGroup>
-    <Version>3.0.0-beta.1</Version>
+    <Version>3.0.0</Version>
   </PropertyGroup>
 </Project>