DIFFERENCE BETWEEN UPGRADE AND UPDATE
Basically, there are only two different methods making any of the change in operating system or app. These two methods are termed as Upgrade and Update. The core difference between them is the importance of those modifications along with their number of modifications. Upgrade of any software changes the entire version of a software, whereas Software Update on other hand consists of small improvements and bug fixes etc.
Many times, you come across both of the things either upgradation or update. Either you upgrade or update things on your computer, it creates a difference on your device and computer. However, both of their function is to make changes on the computer.
What is an Update:
Irrespective of affecting the core structure of an operating system or device or an app, it makes changes to it. Update is a broader term for the frequent changes that are made to your computer or app devices such as Security Patches, Newer Hardware, Bug Fixes, adding the support for drivers.
Update is a task of less duration, just taking a couple of minutes to perform. The range of size of a few Kilobytes to a Megabyte Update is meant for a single app. However, operating system updates can go up to a few hundred megabytes as well.
Updates are mostly free of cost. It is because of the price that you have already pay for the software you purchased. Just due to this reason Windows come so costly providing you an update without any extra charge.
What is an Upgrade:
Upgrade term is used when there are significant and substantial set of changes made to a software. It makes changes to the GUI plus the variety of new features and options that are not existing version of a software or an operating system. As compare to Update, Upgrade size can reach up to several gigabytes. Upgrade, software vendors might charge you. Nevertheless, Windows and MacOS operating system have a free upgrade.
Upgrade is a tedious and complicated process because of the large, replaced or copied amount of data. It takes hours to hours to upgrade your system. Thus, making a huge change to the version number. For example, Android 6.0-7.0 / Windows 8-10. It performs a clean install of the software.