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Release Designations Defined

Software Lifecycle Definitions

First Commercial Shipment (FCS)

The initial version of a software release, which delivers new functionality to the marketplace.

CCO FCS Date

The date at which the software release is commercially available to customers for electronic download from Cisco Connection Online (CCO). Typically occurs one week prior to MFG FCS.

MFG FCS Date

The date at which the software release is commercially available to customers from Cisco manufacturing.

Product Bulletin#

The ID of the Product Bulletin which describes the new features in the software release.

Major Release

A Major Release of Cisco IOS software delivers a significant set of platform and feature support to market. No new features, platform or interface support are added to a Major Release after its initial FCS to protect the stability of the release.

General Deployment (GD)

Date at which this software release reached the "General Deployment" milestone in its lifecycle. A Major Release of Cisco IOS software reaches the "General Deployment" milestone when Cisco feels it is suitable for deployment anywhere in customer networks where the features and functionality of the release are required. Criteria for reaching the "General Deployment" milestone are based on, but not limited to, customer feedback surveys from production and test networks using the releases, CE bug reports, and reported field experience. Only Major Releases are candidates to reach the General Deployment milestone.

Limited Deployment (LD)

A Major Release of Cisco IOS software is said to be in the "Limited Deployment" phase of its lifecycle during the period between initial FCS and the General Deployment (GD) milestones.

GD Release

The maintenance release at which the major release reached the "General Deployment" milestone in its lifecycle. For example, Cisco IOS Release10.0 became "GD" on 01/03/95 with the availability of maintenance release 10.0(7).

ED Release

Early Deployment (ED) Releases offer new feature, platform or interface support.

End of Sales

After this date, the software release may no longer be ordered. Releases which reach this milestone are still available through FSO and CCO for customers under maintenance contract or for Customer Service Engineering (CSE) support until they reach the "End of Life" milestone.

End of Engineering

The date after which no scheduled maintenance releases will be produced for the major release. Releases which reach this milestone are still available through FSO and CCO for customers under maintenance contract or for CSE support until they reach the "End of Life" milestone.

End of Life

After this date, the software release is no longer officially supported by CSE and is removed from CCO.

Please note that Cisco IOS software releases typically reach the "End of Life" milestone three years following FCS of the major release. Specific "End of Life" dates are determined on a case-by-case basis.

Obsolete

After this date, the maintenance release is no longer orderable and is removed from CCO. The term "obsolete" generally refers to a maintenance release within a major release train. Because our cumulative fix model is designed to improve quality with every release, obsolete maintenance releases are generally replaced by newer maintenance releases within the same or more recent major release train. Obsolete versions cannot be ordered on new systems or as spares but can temporarily be made available via CCO under certain conditions. If an obsolete version is made available to a customer, the customer will be expected to maintain master copies of such images they may need in the future. Obsolete software releases are eligible for CSE support until they reach the "End of Life" milestone as previously described.


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