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The process of replacing a product with a newer version of the same product is known as upgrading. An upgrade in computer and consumer electronics is replacing hardware, software, or firmware with a newer or better version to bring the system up to date or enhance its qualities. Installing more memory (RAM), adding larger hard drives, upgrading microprocessor cards or graphics cards, and installing new software versions are examples of popular hardware upgrades. Many more enhancements are also feasible.

Changing the version of an operating system, an office suite, an anti-virus application, or a variety of other utilities are all examples of common software updates.

Updates to the iPod control menus, the Xbox 360 dashboard, or the non-volatile flash memory that holds the embedded operating system for a consumer electronics device are all common firmware upgrades.

Software and firmware upgrades are often available for download via the Internet. Frequently, the download is a patch—it does not include the complete new version of the software, only the modifications that need to be made. Patches for software are often designed to improve functionality or address security issues. Because rushed patches might cause more harm than benefit, they are sometimes viewed with suspicion for a short period of time the following release. Patches are usually available for free.

A significant or small software or firmware upgrade increases the release version code number. A considerable upgrade will modify the version number, whereas a minor update will usually add a “.01”, “.02”, “.03”, etc., to the end of the version number. For example, “version 10.03” might refer to version 10’s third minor update. Minor upgrades (or updates) are usually free with commercial software, while major versions must be purchased.

Companies typically change their software for the following reason:

1.) To meet the industry’s regulatory standards

2.) To gain access to new features and tools in upcoming technologies

3.) To adapt to changing market conditions

4.) To continue receiving complete product support.

Although updates are often created to enhance a product, there are dangers involved, including the potential that the upgrade could make the product worse.

When upgrading hardware, there’s a chance that the new hardware won’t work with the rest of the system’s components. An increase of RAM, for example, could not be compatible with current RAM in a computer. Due to the lack of appropriate drivers for the hardware with a certain operating system. When software is upgraded or lowered for previously operating hardware to no longer operate, the same danger of non-compatibility exists.

Upgrades to software carry the risk of introducing a problem into the new version (or patch), causing the program to malfunction in some manner or not operate at all.

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