
Calibre is a powerful, open-source e-book manager that frequently releases updates to enhance functionality, improve performance, and add new features. Ensuring both Calibre and its plugins are up to date is important to get the most out of the software. This guide will walk you through the process of updating Calibre itself and Calibre plugins.
1. How to Update Calibre
Why Keep Calibre Updated?
New versions often contain bug fixes, new features, and security patches. Keeping Calibre updated ensures the software runs smoothly and remains compatible with the latest e-book formats.
Updating Calibre is a straightforward process, and the Calibre will notify you when a new version is available. Follow these simple steps to ensure you always have the latest version of Calibre.
Step-by-Step Instructions on Updating Calibre.
Step 1 Click Calibre new version notification.
Launch Calibre, upon opening the program, if an update is available, you’ll see a notification in the bottom-right corner of the screen or a pop-up window.
Step 2 Get new version.
Click “Get Update”and this will redirect you to the official Calibre download page.
Step 3 Download the Latest Version
Choose the version appropriate for your operating system and download the installer.
Step 4 Install latest version of Calibre.
After downloading, close Calibre and run the installer. Follow the on-screen instructions to update your current installation.
Tips:
1. Always close Calibre before starting the installation to avoid any interruptions or issues.
2. Don’t worry about losing your settings or library — the update process will preserve them automatically.
2. Step-by-Step: How to Update Calibre Plugins (2 Methods)
One of the best features of Calibre is its extensive plugin support. Plugins, such as the popular DeDRM tool, add specific functionality to Calibre, making it more versatile. While some plugins notify you when updates are available, others may not. Below are two methods to update Calibre plugins.
Method 1: Update via Calibre Notification
For most plugins, Calibre will automatically detect when an update is available and notify you on the main interface. Here's how to update these plugins.
Step 1 Open Calibre, look for the plugin update notification on the main interface. Usually, it should be in the bottom right corner.
Step 2 Click on the Plugin Update notification, and this will prompt a new windows. Here click on "Update Plugins".
Step 3 The "User Plugins" window will pop up. The available plugin updates will be displayed here. Click on "Install," and Calibre will handle downloading and installing the plugin update for you.
During this process, click "Yes" to proceed with the installation.
After the installation, click on "Restart Calibre" to restart the application.

Method 2: Manually Update by Reinstalling the Plugin
Some plugins, like the DeDRM plugin, don’t notify users of updates within Calibre. In this case, you’ll need to manually uninstall the old version and reinstall the latest one.
Steps to Update DeDRM (or other manually updated plugins) are listed below.
Step 1 Uninstall the Existing Plugin.
Open Calibre and go to "Preferences" > "Plugins". Find the plugin (e.g., DeDRM) in the list, right-click it, and select "Remove Plugin".

Step 2 Download the Latest Version of dedrm plugin.
Go to the plugin's official website or trusted source (for DeDRM, this is usually GitHub). Please ,download dedrm plugin 10.0.9 here.
Step 3 Install the New Version of dedrm plugin.
Unzip the DeDRM plugin, and you will find two zip files in the folder. Please leave them as zip files without extracting them.

Return to Calibre and go to "Preferences" > "Plugins" > "Load Plugin from File". Locate the newly downloaded plugin file and install it.

To ensure the new plugin version is fully functional, restart Calibre after installation. Now, when you check your DeDRM plugin, you'll see that it has been updated to version 10.0.9, no longer 10.0.3.

Conclusion
Keeping both Calibre and its plugins up to date ensures you’re using the most stable, secure, and feature-rich version of the software. Whether it's a one-click process or a manual plugin update, following these steps will help you update your Calibre dedrm plugin and Calibre to the latest version.

Iris Yan Marketing Architect at Epubor since 2017, drives the brand’s product design, advertising, and all-channel strategy.





