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Chapter 9
Obtaining Software
IDS Software Versioning
Figure 9-1
IDS Software File Name
IDS-maj-w.x-y-Sz.rpm.pkg
Update Type
Major Version Level
Minor Version Level
Service Pack Level
Signature Level
IDS-sig-4.0-2-S44.rpm.pkg–Signature Update
IDS-K9-sp-4.0-2-S42.rpm.pkg–Service Pack Update
IDS-K9-min-4.1-1-S50.rpm.pkg–Minor Version Update
IDS-K9-maj-5.0-1-S60.rpm.pkg–Major Version Update
A major version upgrade contains new functionality or an architectural change in
the product. For example, beginning with the IDS 4.0 base version release, future
major version upgrades (5.0, 6.0, and so forth) include everything since the
previous major release (the minor version features, service pack fixes, and
signature updates) plus any new changes.
A minor version upgrade is incremental to the major version. Minor version
upgrades are also base versions for service packs. The first minor version upgrade
for 4.0 is 4.1(1)Sx. Minor version upgrades are released for minor enhancements
to the product. Minor version upgrades contain all previous minor features,
service pack fixes, and signature updates since the last major version, and the new
minor features being released.
Service packs are cumulative following a base version release (minor or major).
Service packs are used for the release of defect fixes with no new enhancements.
Service packs contain all service pack fixes and signature updates since the last
base version (minor or major) and the new defect fixes being released.
Signature updates are cumulative and increment by one with each new release (for
example, S45, S46, S47). Signature updates include every signature since the
initial signature release (S1) in addition to the new signatures being released.
Cisco Intrusion Detection System Appliance and Module Installation and Configuration Guide Version 4.1
9-4
78-15597-02
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Table of Contents
Troubleshooting
