diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad31b6f..d383155 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
### Version: 1.0.0
-#### Date:
+#### Date: July-13-2026
##### Breaking Changes:
- Removed the `Newtonsoft.Json` dependency entirely. Both the tool's internals and the models/converters it generates now use `System.Text.Json`.
diff --git a/README.md b/README.md
index 70b6a2a..8641578 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,17 @@ This utility is use to generate models based on ContentTypes in Stack.
## Requirements
**As of v1.0.0**, this tool targets **.NET 10.0** and requires the **.NET 10.0 SDK or later**. Versions prior to v1.0.0 targeted .NET 7.0.
+### Compatibility
+Since v1.0.0, generated model files use `System.Text.Json` instead of `Newtonsoft.Json`. Because generated code references `Contentstack.Core.Models` and `Contentstack.Utils.Interfaces` / `ContentstackHelper` directly, your consuming project must reference System.Text.Json-based SDK versions for the generated code to compile:
+
+| Package | Minimum Version |
+|---|---|
+| `contentstack.csharp` (Delivery SDK) | `3.0.0` |
+| `contentstack.management.csharp` (Management SDK) | `1.0.0` |
+| `contentstack.utils` | `2.0.0` |
+
+Generating models into a project still referencing pre-3.0.0 / pre-1.0.0 / pre-2.0.0 (Newtonsoft-based) SDK versions will produce code that fails to compile.
+
## Installation
To install Contenstack model generator run following command:
```
diff --git a/contentstack.model.generator/contentstack.model.generator.csproj b/contentstack.model.generator/contentstack.model.generator.csproj
index 6ab2556..1347695 100644
--- a/contentstack.model.generator/contentstack.model.generator.csproj
+++ b/contentstack.model.generator/contentstack.model.generator.csproj
@@ -13,15 +13,15 @@
true
./nupkg
true
- 1.0.0-beta.1
+ 1.0.0
Contentstack
- 1.0.0-beta.1
+ 1.0.0
Contentstack.Model.Generator
LICENSE.txt
- Improved Error messages
+ See CHANGELOG.md for full release notes.
true
true
- v0.5.1
+ contentstack;model-generator;codegen;cli;dotnet-tool;csharp;net10;system-text-json;cms;headless-cms
Release;Debug