Why Did Apple Switch To Zsh


I remember the first time I opened my terminal on my Mac and noticed something different. The familiar bash shell was gone, replaced by a new shell called zsh. As a long-time Apple user, I was curious about this change and wanted to understand why Apple made the switch to zsh.

What is zsh?

Zsh, short for Z Shell, is a powerful shell and command-line interpreter for Unix-based systems. It is an extended version of the bash shell with additional features and improvements. Zsh offers a more user-friendly and customizable experience compared to bash, making it a popular choice among developers and power users.

Improved User Experience

One of the main reasons why Apple made the switch to zsh is to enhance the user experience. Zsh provides several features that make working in the terminal easier and more efficient. For example, it offers advanced tab completion, which suggests commands, options, and file paths as you type, saving you time and reducing the chances of making mistakes.

Additionally, zsh has a powerful and flexible configuration system that allows users to customize their shell environment to fit their needs. Its extensive plugin ecosystem provides even more functionality, enabling users to add features like syntax highlighting, auto-suggestions, and Git integration.

Built-in Security

Another reason why Apple made the switch to zsh is its improved security. Zsh includes built-in protection mechanisms, such as enhanced path handling and command validation, which help prevent common security vulnerabilities. This is especially important as more developers rely on the command line for various tasks, including package management and deployment.

Compatibility and Future-Proofing

Apple’s decision to switch to zsh also aligns with industry trends and future-proofing their operating system. Zsh is widely supported across different platforms and has a large user base. By adopting zsh as the default shell, Apple ensures compatibility with existing zsh-centric workflows and frameworks.

Furthermore, zsh is actively developed and maintained, with a vibrant community contributing to its ongoing development. This ensures that Apple can leverage the latest features and improvements from the zsh project, keeping their command-line interface up to date with the evolving needs of their users.


Switching to zsh was a strategic move by Apple to enhance the user experience, improve security, and align with industry trends. Zsh’s advanced features, customization options, and compatibility make it a compelling choice for both beginners and experienced developers.

Personally, I have found zsh to be a breath of fresh air in my daily terminal usage. Its intuitive tab completion, customizable prompt, and extensive plugin ecosystem have made my command-line interactions more efficient and enjoyable. If you haven’t tried zsh yet, I highly recommend giving it a chance and experiencing the power of this modern shell.