Description
Red Hat offers subscription services for each major release of Red Hat Enterprise Linux throughout four life-cycle phases—called Production 1, 2, and 3, and an Extended Life Phase.
- Red Hat Enterprise Linux versions 5, 6, and 7 each deliver 10 years of support in Production Phases 1, 2, and 3 followed by an Extended Life Phase. In addition, for Red Hat Enterprise Linux 5, customers may purchase annual Add-on subscriptions called Extended Life-cycle Support (ELS) that provide similar support to Production Phase 3 through November 30, 2020.
- Red Hat Enterprise Linux 4 is offered with seven years of Production Phase support followed by an Extended Life Phase. In addition, customers may purchase annual Add-on subscriptions called Extended Life Cycle Support (ELS) that provide similar support to Production Phase 3 through March 31, 2017.
Red Hat Enterprise Linux Atomic Host is a secure, lightweight and minimal footprint operating system optimized to run Linux containers and is based on the latest version of Red Hat Enterprise Linux. While Red Hat Enterprise Linux Atomic Host inherits the enhancements and errata of latest major version of Red Hat Enterprise Linux , it also integrates image creation and management tools specific to container deployments. Red Hat Enterprise Linux Atomic Host has an immutable image-based updating mechanism that differs from Red Hat Enterprise Linux's default RPM packaged-based updating mechanism. Additionally, the image creation and management tools integrated into Atomic Host are expected to be updated at a frequency much greater than Red Hat Enterprise Linux itself.
During the three-year Production Phase, qualified Critical and Important Security errata advisories (RHSAs) and Urgent and Selected High Priority Bug Fix errata advisories (RHBAs) may be released, as an update to the Red Hat Enterprise Linux Atomic Host image,as they become available. Other errata advisories may be delivered as appropriate.
If available, new or improved hardware enablement and select enhanced software functionality may be provided at the discretion of Red Hat, as an updated image. Updated Red Hat Enterprise Linux Atomic Host images are cumulative and include the contents of previously released updates.
The Red Hat Enterprise Linux life cycle phases are designed to reduce the level of change within each major releasei over time and make release availability and content more predictable
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