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Similar to a 'Fix', a Patch is a temporary arrangement used to overcome software problems or glitches. A patch will normally be released as a 'quick fix' prior to the next formal release of the software. Patches are usually (but not always) available on-line from the vendor's Web site.

Caution. A patch will usually (but not always) be an incremental addition to an assumed software version, i.e. the patch will assume that the software already installed is version 'x'. It is critical that the patch is applied carefully and that the software version to which it applies, is confirmed. Naturally, no software update should be performed without first having adequately tested the update. See System Testing.

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