Answer Posted / Nidhi Paswan

A patch in Drupal is a series of changes made to the codebase, usually for bug fixes or feature enhancements. To apply a patch:

1. Save the patch file (usually with .patch extension) to your local machine.
2. Navigate to the root directory of your Drupal installation.
3. Apply the patch using the command-line interface (CLI):
```
patch < filename.patch
```
4. If no errors occur, the patch has been applied successfully.

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