A software update is a modification of code that corrects problems with the security or functionality of an application, game or operating system. It is the way developers continually improve their products to keep up with technological advancements and users’ needs. These updates can include security patches to fortify against cyber threats, performance upgrades and changes to user interfaces. Keeping your computer, phone and tablet updated with these releases is a crucial step to ensure your information stays safe, the device performs well and programs and apps remain compatible.

Some updates will clearly state they are for security purposes, but even non-security patches are important to install. Over time, hackers find new ways to break into systems and steal data or compromise users’ privacy. Updates patch those gaps and bring older protocols up to speed with newer, more secure standards.

In the past, a lot of these updates were done through a process called rolling out a service pack. This would essentially write a fresh version of the operating system onto a memory chip, wipe the old one and then boot up with the new image. This is a simpler and safer approach than the old method, which was to individually update each and every little piece of the OS image which was much more error-prone and complex to do while the system was running.

Aside from improving the functionality and usability of an app, games or software, software updates can also introduce new features that help you work more efficiently. This is especially true for business applications such as project management, customer relationship management and accounting. For example, a mobile app that tracks your fitness data can receive updates to add more functions like integration with other fitness tracking devices and to fix glitches and errors in the user interface.