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How to Downgrade Node Version 21.5.0 or 20.10.0 LTS

Software downgrading may be just as difficult as updating it, but not with NVM. This utility makes switching Node.js versions simple.

To downgrade Node.js to a specific version, you can use a version manager like nvm (Node Version Manager) or n (Node version manager). I’ll provide instructions for NVM, as it’s a popular choice.

What is Node?

What is Node

Node is an open-source, cross-platform JavaScript runtime environment that allows developers to execute JavaScript code outside of a web browser. It is also known as Node.js. Node.js was created in 2009 by Ryan Dahl and is based on the V8 JavaScript engine, which runs the Google Chrome browser.

Key features and aspects of Node.js include:

  • Asynchronous and Event-Driven: One of the defining characteristics of Node.js is its asynchronous, non-blocking I/O model. This enables handling multiple connections simultaneously without the need for multi-threading, making it well-suited for scalable network applications.
  • JavaScript Everywhere: Node.js allows developers to use JavaScript for both server-side and client-side programming, creating a unified development environment. This facilitates the sharing of code and knowledge between server and client applications.
  • NPM (Node Package Manager): Node.js comes with a package manager called npm, which is one of the largest ecosystems of open-source libraries. Developers can easily install, share, and manage third-party packages and dependencies using npm.
  • Server-Side Development: Node.js is commonly used for server-side development to build scalable and high-performance web applications. It is often employed for building APIs, handling HTTP requests, and managing server-side logic.
  • Real-Time Applications: Node.js is well-suited for building real-time applications such as chat applications, online gaming, and collaborative tools due to its event-driven architecture and support for WebSockets.
  • Cross-Platform: Node.js is designed to be cross-platform, which means it can run on various operating systems, including Windows, macOS, and Linux.

Node.js has grown in popularity in the development community, and it is still frequently used for developing a wide range of applications, from small-scale projects to large-scale business systems. Because of its adaptability and efficiency, it is an excellent choice for current web development.

Also Read: Download Windows 11 ISO File (x64) 64bit

What is Downgrading Node version?

What is Downgrading Node version

Downgrading Node.js version refers to the act of installing and switching to a lower or older version of the Node.js runtime on your computer. This might be required for a variety of reasons, including:

  • Compatibility: Your project may require a specific Node.js version to work correctly with certain dependencies or frameworks.
  • Legacy Code: If you are working on an older project that was developed with an earlier Node.js version, you might need to downgrade to run that code.
  • Package Compatibility: Some npm packages or modules may not be compatible with the latest Node.js version, so downgrading can be a solution.
  • Testing and Development: Developers often need to test their applications on different Node.js versions to ensure compatibility and identify potential issues.

You may use a version manager such as nvm (Node Version Manager) or n (Node Version Manager) to downgrade Node.js. These utilities make it simple to switch between Node.js versions and manage the versions installed on your machine.

Downgrading usually entails installing the desired Node.js version and making it the active version. After downgrading, make sure that the transition was successful and that your project still works with the previous Node.js version.

How to Rollback Node version 21.5.0 Update?

How to Downgrade Node Version

To downgrade to a previous version of Node.js, you can use a version manager like nvm (Node Version Manager). Here are the steps to downgrade Windows, macOS, and Linux Node.js using nvm:

Using nvm (Node Version Manager):

Using nvm (Node Version Manager)

  1. Install nvm: If you don’t have nvm installed, you can install it by following the instructions on the official GitHub repository.
  2. List installed Node.js versions: Open a terminal and run the following command to see the list of Node.js versions installed on your machine:
    nvm ls
  3. Choose a version: Identify the version you want to switch to and note its version number.
  4. Install the desired version: Use the following command to install a specific Node.js version:
    nvm install <version_number>

    Replace <version_number> with the actual version number you want to install.

  5. Switch to the installed version: Once the installation is complete, set the desired version as the default using the following command:
    nvm use <version_number>

    Replace <version_number> with the version number you installed.

  6. Verify the version: Check if the Node.js version has been switched successfully:
    node -v

    This should display the version you just installed.

That’s it! You have successfully downgraded your Node.js version using nvm. Keep in mind that you might need to restart your terminal or open a new terminal window for the changes to take effect.

Also Read: How to Downgrade from Windows 11 to Windows 10

Downgrade Node Version (FAQs)?

Downgrading Node.js to a specific version can be necessary in certain situations, such as when working on a project that requires an older Node.js version. Here are some frequently asked questions (FAQs) related to downgrading Node.js:

Q: Why would I want to downgrade my Node.js version?

A: There are several reasons you might want to downgrade Node.js, such as compatibility issues with certain packages or frameworks, or if your project requires a specific older version of Node.js.

Q: How can I check my current Node.js version?

A: Open your terminal and type the following command:

node -v

This will display the currently installed Node.js version.

Q: What is the recommended way to manage Node.js versions?

A: Using a version manager like nvm (Node Version Manager) is a recommended way. It allows you to easily switch between different Node.js versions.

Q: How do I install nvm?

A: You can install nvm by following the instructions on the official GitHub repository. The installation process may vary based on your operating system.

Q: Can I use nvm to downgrade Node.js to a specific version?

A: Yes, nvm allows you to install and switch between different Node.js versions, including downgrading to a specific version.

Q: How can I list the Node.js versions installed on my machine with nvm?

A: In your terminal, you can use the following command:

nvm ls

This will display a list of all installed Node.js versions.

Q: How do I install a specific Node.js version using nvm?

A: You can use the following command to install a specific version:

nvm install <version_number>

Replace <version_number> with the actual version number you want to install.

Q: What steps should I follow after installing a lower version of Node.js?

A: After installing the desired version, you should use the following command to switch to that version:

nvm use <version_number>

Replace <version_number> with the version number you installed. Additionally, you might need to restart your terminal or open a new terminal window for the changes to take effect.

Q: Are there any considerations when downgrading Node.js?

A: Yes, be aware that downgrading may involve uninstalling the current version and installing the lower version. You may need to reinstall global packages if they are not compatible with the lower version. Always check the release notes and documentation for any specific considerations related to the version you are downgrading to.

Conclusion

In the dynamic landscape of software development, the need to navigate between different Node.js versions is not uncommon. Whether you’re resolving compatibility issues, aligning with project requirements, or exploring the rich history of Node.js releases, version management becomes a valuable skill.

By leveraging tools like nvm, the process of downgrading Node.js is made remarkably straightforward. The ability to seamlessly switch between versions empowers developers to adapt to the evolving demands of their projects.

Remember, as you embark on the journey of version control, staying informed about the specific requirements of your project and being mindful of potential package compatibility is key. The flexibility provided by version managers not only simplifies downgrading but also encourages exploration and experimentation in the ever-expanding Node.js ecosystem.

So, whether you’re gracefully stepping back in time to a legacy version or carefully aligning with the cutting edge, the power to manage Node.js versions puts you in control of your development environment. Embrace the flexibility, stay curious, and may your coding adventures be both productive and enlightening.

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