Key Differences Between Ubuntu LTS and Non-LTS Releases: 16.04, 18.04, 20.04 vs 15.10, 16.10, 17.04, 17.10, 18.10, 19.04, 19.10, 20.10

Ubuntu is a widely-used Linux distribution that offers both Long-Term Support (LTS) and interim (or "non-LTS") releases. Understanding the differences between these two types of releases is crucial for users who are considering adopting or upgrading to Ubuntu. This article delves into the significant distinctions between Ubuntu LTS versions such as 16.04, 18.04, and 20.04, and the interim releases such as 15.10, 16.10, 17.04, 17.10, 18.10, 19.04, 19.10, and 20.10.

Support Duration

The primary difference between LTS and non-LTS releases lies in their support duration. LTS releases, like 16.04, 18.04, and 20.04, are supported for five years from their release date, providing continuous security updates and maintenance. For instance, Ubuntu 20.04 LTS will receive updates until April 2025. On the other hand, non-LTS releases, such as 15.10, 16.10, and 17.04, are supported for only nine months, which means they require more frequent upgrades if users wish to stay updated.

Stability and Reliability

Another significant difference is the focus on stability and reliability. LTS releases are designed to be stable and are often used in production environments, servers, and enterprise settings. They undergo extensive testing before release, ensuring a smooth user experience over their support duration. In contrast, non-LTS releases frequently include newer features and technologies, but may not have undergone as thorough testing. This can lead to stability issues for users.

Feature Set

When it comes to the feature set, LTS releases do receive updates but may not always include the latest features or software versions. These updates focus on security, critical fixes, and minor improvements, ensuring a conservative update process. Non-LTS releases, however, often include the latest software drivers and features, making them more appealing for users who want to try the latest technologies. However, the frequent inclusion of new features and software versions can sometimes disrupt the user experience.

User Experience and Desktop Environment

In terms of user experience and desktop environment, LTS releases generally maintain a more consistent user interface and experience over their support period, with a focus on reliability. Non-LTS releases, on the other hand, may introduce new desktop environments or make significant changes to existing ones. These changes can lead to a more dynamic but potentially less consistent user experience, making non-LTS releases more appealing to users who are comfortable with frequent changes and updates.

Update Frequency

The frequency of updates is another key difference between LTS and non-LTS releases. LTS updates are typically more conservative, focusing on security and critical fixes rather than introducing new features. Non-LTS releases, however, may see more frequent updates, including new features, improvements, and sometimes new software versions. This can be both an advantage and a disadvantage, depending on the user's needs and preferences.

Summary

In essence, if you prioritize stability and long-term support, LTS releases like 16.04, 18.04, and 20.04 are the better choice. These releases offer a stable, reliable user experience and continuous updates over a longer period. If, on the other hand, you prefer having the latest features and are comfortable with more frequent upgrades, the interim releases might be more suitable.

Conclusion

Choosing the right Ubuntu release depends on your specific needs and requirements. Whether you prioritize long-term support and stability or are open to the latest features and technologies, this article provides a comprehensive guide to help you make an informed decision. Whether you are upgrading from one version to another or planning a new deployment, understanding these differences will help ensure a smooth transition and optimal performance.