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Cisco IOS Software

Cisco IOS Software

Cisco IOSTM Software Releases at a Glance

Release Description
Major Releases Mainstream software for Enterprise networks. As of September 1996, no new features or platform support will be added after initial FCS of a Major Release to protect the stability of the release. Only Major Releases are targeted to achieve General Deployment (GD) status.

Prior to achieving GD status, Major Releases are appropriate for point solution and limited deployment in production networks; however, there may be issues with newer releases. Release notes and outstanding bugs should be consulted prior to deploying.

General
Deployment (GD)
A Major Release that has reached a level of stability and maturity which makes it suitable for use anywhere in a customer's production network.

GD software is appropriate for use in mission-critical applications. Release notes and outstanding bugs should be consulted prior to deploying.

Early
Deployment (ED)
A software release used to deliver new feature and platform support in advance of a Major Release. New functionality may be introduced after initial FCS, resulting in software that may be less stable than Major Releases. Proven functionality from ED releases will be incorporated into a subsequent Major Release.

Appropriate for point solutions and limited deployment in a network, where the new functionality is required. As with all releases, release notes and outstanding bugs should be analyzed prior to deploying.

Current Major Releases

Release Description
11.2 Most recent release; introduced 10/14/96
11.1 Introduced 03/04/96
11.0 General Deployment, as of 11.0(11)
10.3 General Deployment, as of 10.3(15)

Current Early Deployment Releases

Release Description
11.0 BT Based on the 11.0 Major Release. Used to deliver TN3270 server functionality. This functionality is now available in the 11.2 Major Release.
11.1 AA Based on the 11.1 Major Release. Used to introduce Cisco 1600 and 3600 series routers. Also used to deliver additional interfaces and software functionality on the AS5200.
11.1 CA Based on the 11.1 Major Release. Used to deliver additional interfaces on the Cisco 7000, 7200, 7500, and RSP7000 series routers.
11.2 P Based on the 11.2 Major Release. Used to deliver 11.2 functionality on new platforms, such as the Cisco 1600 and 3600 series routers. Also may be used to deliver new interfaces on any existing platforms.
11.2 F Based on the 11.2 Major Release. Planned to introduce new features to the release in advance of the next Major Release.

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