Chapter 1. Overview
Live patching for the kernel,
kpatch, is now available, which enables you to consume Critical and Important CVEs fixes without the need to reboot your system. For details, see Section 4.7, “Kernel”.
- The IMA/EVM feature for verifying file system integrity is now supported on all architectures. See details in Section 4.7, “Kernel”.
- The Image Builder is now fully supported. Cloud images can be built for Amazon Web Services, VMware vSphere, and OpenStack. See more information in Section 4.6, “Installation and Booting”.
- Python 3.6 is now available in RHEL 7. For details, see Section 4.3, “Compiler and Tools”.
tangd_port_tSELinux type allows changes of the default port for Tang when deploying a Network-Bound Disc Encryption (NBDE) server. For more security enhancements, see Section 4.10, “Security”.
- Capabilities and limits of Red Hat Enterprise Linux 7 as compared to other versions of the system are available in the Knowledgebase article Red Hat Enterprise Linux technology capabilities and limits.
- The Package Manifest document provides a package listing for RHEL 7.
- The Red Hat Insights service, which enables you to proactively identify, examine, and resolve known technical issues, is now available with all RHEL subscriptions. For instructions on how to install the Red Hat Insights client and register your system to the service, see the Red Hat Insights Get Started page.
An in-place upgrade offers a way of upgrading a system to a new major release of Red Hat Enterprise Linux by replacing the existing operating system. For a list of currently supported upgrade pahts, see Supported in-place upgrade paths for Red Hat Enterprise Linux.
In-place upgrade from RHEL 6 to RHEL 7
The procedure of an in-place upgrade from RHEL 6 to RHEL 7 and the usage of the
Preupgrade Assistant and the
Red Hat Upgrade Tool is documented in the Upgrading from RHEL 6 to RHEL 7 guide. Major differences between the two major releases are documented in the Migration Planning Guide. Note that the
Preupgrade Assistant and the
Red Hat Upgrade Tool are available in the RHEL 6 Extras repository.
If you are using CentOS Linux 6 or Oracle Linux 6, you can convert your operating system to RHEL 6 using the
convert2rhel utility prior to upgrading to RHEL 7. For instructions, see How to convert from CentOS Linux or Oracle Linux to RHEL.
In-place upgrade from RHEL 7 to RHEL 8
Instructions on how to perform an in-place upgrade from RHEL 7 to RHEL 8 using the
Leapp utility are provided by the document Upgrading from RHEL 7 to RHEL 8. Significant differences between RHEL 7 and RHEL 8 are documented in Considerations in adopting RHEL 8. The
Leapp utility is available in the RHEL 7 Extras repository.
If you are using CentOS Linux 7 or Oracle Linux 7, you can convert your operating system to RHEL 7 using the
convert2rhel utility prior to upgrading to RHEL 8. For instructions, see How to convert from CentOS Linux or Oracle Linux to RHEL.
Product life cycle
Red Hat Enterprise Linux 7 is now in the Maintenance Support 1 phase of the product life cycle. Future minor releases will focus on retaining and improving stability and reliability rather than adding new features. See the Red Hat Enterprise Linux Life Cycle document for more details.
Red Hat Customer Portal Labs
Red Hat Customer Portal Labs is a set of tools in a section of the Customer Portal. The applications in Red Hat Customer Portal Labs can help you improve performance, quickly troubleshoot issues, identify security problems, and quickly deploy and configure complex applications. Some of the most popular applications are: