# Upgrading Unreal Versions

<p class="callout danger">PLEASE **BACKUP** **YOUR PROJECT** BEFORE PROCEEDING!</p>

It is recommended you use version control and/or File/Zip Project before proceeding.

<p class="callout info">This guide contains a generic upgrade path. Some additional considerations may be taken depending on the size/project configuration.</p>

### Upgrade Project

Ensure your project is fully closed.

**Delete** any of these temporary files: **Build**, **Binaries**, **DerivedDataCache**, **Saved**, **Intermediate**.

**Remove** and **replace** any plugin in your **Plugins** folder (for example VRExpansionPlugin) with the plugin version that matches the engine.

Right click on the **blue Unreal project icon** -&gt; **Show more options** -&gt; **Switch Unreal Version**. Choose the appropriate version.

Launch project. The project may prompt to complete various things as needed. If the project fails, check your Saved folder for Logs.

### Android Builds for SCiL Workstations

You may need to update your path to your NDK below:

**Edit -&gt; Project Settings -&gt; Android SDK**

UNREAL 5.5 - **Location of Android NDK**: C:/Android/SDK/ndk/25.xxx

UNREAL 5.6 - **Location of Android NDK**: C:/Android/SDK/ndk/27.xxx