Red Hat SummitChapter 1. Key resources for evaluating an upgrade to RHEL 9
The Considerations in adopting RHEL document provides an overview of differences between two major versions of Red Hat Enterprise Linux: RHEL 8 and RHEL 9. It provides a list of changes relevant for evaluating an upgrade to RHEL 9 rather than an exhaustive list of all alterations. Review the following documents when considering the upgrade to RHEL 9:
- For details regarding RHEL 9 usage, see the RHEL 9 product documentation.
- For guidance regarding an in-place upgrade from RHEL 8 to RHEL 9, see Upgrading from RHEL 8 to RHEL 9.
- For guidance on how to install RHEL 9, see, Installing RHEL.
- For information about major differences between RHEL 7 and RHEL 8, see Considerations in adopting RHEL 8.
- For information about capabilities and limits of Red Hat Enterprise Linux 9 as compared to other versions of the system, see the Red Hat Enterprise Linux technology capabilities and limits Knowledgebase article.
- For information regarding the Red Hat Enterprise Linux life cycle, see Red Hat Enterprise Linux Life Cycle.
- For information about a package listing for RHEL 9, including licenses and application compatibility levels, see Package manifest.
- For information about application compatibility levels, see Red Hat Enterprise Linux 9: Application Compatibility Guide.
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