- Critical updates:
Broadly released fixes for specific problems addressing critical, non-security related bugs.
- Definition Updates:
Updates to anti-malware or other definition files.
- Feature Packs:
New product functionality usually included in the next full product release.
- Security Updates:
Broadly released fixes for specific products, addressing security issues.
- Service Packs:
Cumulative sets of all hotfixes, security updates, critical updates, and updates created since the release of the product. Service packs might also contain a limited number of customer-requested design changes or features.
Utilities or features that aid in accomplishing a task or set of tasks.
- Update Rollups:
Cumulative sets of hotfixes, security updates, critical updates, and updates packaged together for easy deployment. A rollup generally targets a specific area, such as security, or a specific component, such as Internet Information Services (IIS).
Broadly released fixes for specific problems addressing non-critical, non-security related bugs.