<p>I've worked on a lot of Drupal projects and there have been times when previous Developers have "hacked" Drupal core or contrib modules by editing them to add or change functionality.</p>
<p>This is a short-sighted approach, as any changes to third-party code such as Drupal core or contrib modules would be lost when a new version is downloaded.</p>
<p>Most of the time, changes can be made within custom code that won't be overwritten and accidentally lost.</p>
<p>But in cases where the source code needs to be changed, <a href="/daily/2025/01/14/patching-drupal">you can patch files instead</a>.</p>
<p>You can commit the patch file to your project to save the changes, but you're responsible for maintaining it and ensuring it applies to any future updates of the code.</p>
<p>If you can, commit the changes upstream.</p>
<p>Then you won't need to patch files and others will benefit from the contribution.</p>
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<p>I've worked on a lot of Drupal projects and there have been times when previous Developers have "hacked" Drupal core or contrib modules by editing them to add or change functionality.</p>
<p>This is a short-sighted approach, as any changes to third-party code such as Drupal core or contrib modules would be lost when a new version is downloaded.</p>
<p>Most of the time, changes can be made within custom code that won't be overwritten and accidentally lost.</p>
<p>You can commit the patch file to your project to save the changes, but you're responsible for maintaining it and ensuring it applies to any future updates of the code.</p>
<p>If you can, commit the changes upstream.</p>
<p>Then you won't need to patch files and others will benefit from the contribution.</p>