Question

What is the difference between Update and Upgrade?​

Answer 1

Explanation:

A software update includes bug fixes, and other small improvements, while a software upgrade changes the version of a software. ... Surely, there is a difference between updating and upgrading your computer or some other device. Although, both of them involve making changes to the software running on your computer.

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Answer 2

Update

When we perform an update, it involves making changes to an app or an operating system is such a way that it doesn’t affect its core structure. So, most of the frequent changes made to your computer like bug fixes, security patches, adding support for drivers and newer hardware, etc. can be termed as an Update.

Upgrade

When a set of changes made to a software are significant and substantial enough, we can call it an Upgrade. That’s why making a switch from Ubuntu 16.04 to Ubuntu 17.04 would be called an upgrade, not update.