If you look at the nature of the Cisco updates, most of them are related to patching deficiencies in range checking and outright bugs rather than keeping the product up-to-date. Not good technique for a company claiming fitness for securing our networks. Damn the torpedoes is not a model for day-to-day business.There is sometimes when an update is just needed because you can't foresee the future.
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Firmware updates are needed, and needed often.

