<p><a target="_blank" href="https://experienceleague.adobe.com/docs/commerce-operations/upgrade-guide/upgrade-compatibility-tool/overview.html?lang=en">Upgrade Compatibility Tool</a> offers a possibility to compare a client's Adobe Commerce installation with a clean vanilla installation to see if the core code has any modifications made to implement a new feature or customization. </p>
<p>This check might also be helpful during presales, consulting engagements like a Health Check to understand how healthy the codebase is.</p>
<h1 id="heading-steps-for-the-check">Steps for the check</h1>
<h2 id="heading-install-uct">Install UCT</h2>
<pre><code>composer create-project magento/upgrade-compatibility-tool uct --repository https:<span class="hljs-comment">//repo.magento.com</span>
</code></pre><h2 id="heading-install-vanilla-magento">Install vanilla Magento</h2>
<p>Note: "2.4.4-p2" is used as an example</p>
<pre><code>composer create-project --repository-url=https:<span class="hljs-comment">//repo.magento.com/ magento/project-enterprise-edition=2.4.4-p2 magento-2.4.4-p2</span>
</code></pre><h2 id="heading-make-a-core-code-changed-check">Make a core code changed check</h2>
<pre><code>bin/uct core:code:changes &lt;client_magento_dir&gt; <span class="xml"><span class="hljs-tag">&lt;<span class="hljs-name">vanilla_magento_dir</span>&gt;</span></span>
</code></pre>

[Upgrade Compatibility Tool](https://experienceleague.adobe.com/docs/commerce-operations/upgrade-guide/upgrade-compatibility-tool/overview.html?lang=en) offers a possibility to compare a client's Adobe Commerce installation with a clean vanilla installation to see if the core code has any modifications made to implement a new feature or customization. 

This check might also be helpful during presales, consulting engagements like a Health Check to understand how healthy the codebase is.

# Steps for the check
## Install UCT
```
composer create-project magento/upgrade-compatibility-tool uct --repository https://repo.magento.com
```
## Install vanilla Magento
Note: "2.4.4-p2" is used as an example
```
composer create-project --repository-url=https://repo.magento.com/ magento/project-enterprise-edition=2.4.4-p2 magento-2.4.4-p2
```
## Make a core code changed check
```
bin/uct core:code:changes <client_magento_dir> <vanilla_magento_dir>
```

Igor Sydorenko's blog

Igor Sydorenko's blog

Check Adobe Commerce core code changes

Steps for the check

Install UCT

Install vanilla Magento

Make a core code changed check