Cisco Headend System Release 2.5 Technical References

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March 2004 
Operations Alert Bulletin 
System Release Obsolescence 
Introduction 
Cisco has made significant improvements with the performance of each successive 
system release. For example, System Release (SR) 1.5.1 improved overall system 
performance and System Release 2.2.0/3.2.0 incorporated Cisco’s CableCARD
 
functionality and added new EAS (Emergency Alert System) codes. Taking these 
improvements into account, Cisco has decided to discontinue several older system 
releases.  
Purpose 
This alert bulletin serves as notification to system operators that several system 
releases will be discontinued. In addition, the benefits of upgrading to a current 
system release and the future disposition of the supporting publications for these 
discontinued system releases are discussed. 
Audience 
This alert bulletin is intended for all Cisco customers who have System Release 1.2.x, 
1.4.x, 1.5.0, 2.1.0, 2.1.1, 3.0.0, and 3.0.1 software installed and running at their sites.