> For the complete documentation index, see [llms.txt](https://docs.wisej.com/system.drawing.managed/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wisej.com/system.drawing.managed/whats-new.md).

# What's New

### Overview

This page summarizes recent updates and important version milestones for **System.Drawing.Managed**.\
It highlights new features, improvements, and fixes across releases, and provides guidance on which versions should be used in production.

{% hint style="warning" %}
Versions **3.5.x** found on NuGet are **not supported** and should be ignored.\
They were created exclusively for the **Wisej.Hybrid** branch to support mobile devices and are **not compatible** with the current System.Drawing.Managed 4.x line.
{% endhint %}

### Version History

#### **4.0.3**

**Release focus:** Performance improvements

* Substantially increased font measuring speed, resulting in much faster text layout and rendering operations across all platforms.
* Minor internal optimizations and code cleanup.

***

#### **4.0.2**

**Release focus:** Font rendering and globalization

* Added support for **fallback fonts**, enabling accurate measurement and rendering of text containing mixed or non-Latin character sets (e.g., Chinese, Japanese, Korean, Arabic).
* Improved overall text layout consistency across platforms.

***

#### **4.0.1**

**Release focus:** Stability and refinement

* Multiple **bug fixes** and internal **performance improvements** in image and font handling.
* Enhanced reliability across different .NET runtimes and environments.

***

#### **4.0.0**

**Initial Release**

* First public release of **System.Drawing.Managed**.
* Introduced the **fully managed** implementation of the `System.Drawing` API, offering cross-platform graphics and imaging support for **Windows, Linux, macOS, iOS, and Android**.
* Provided a drop-in replacement for `System.Drawing.Common`, compatible with most existing codebases.
* Bundled a self-contained, ImageSharp-based graphics engine within the assembly.

***

### Compatibility Notes

* The **4.x branch** is the official, supported line for all current and future development.
* The **3.5.x branch** was an internal version used solely by **Wisej.Hybrid** and should not be referenced in any new or existing projects.
* All improvements and fixes are applied exclusively to the **4.x series** going forward.


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