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Announcing the release of Oracle Linux 8 Update 2

Simon Coter
Senior Manager, Oracle Linux and Virtualization Product Management

Oracle is pleased to announce the general availability of Oracle Linux 8 Update 2. Individual RPM packages are available on the Unbreakable Linux Network (ULN) and the Oracle Linux yum server. ISO installation images will soon be available for download from the Oracle Software Delivery Cloud, and Docker images will soon be available via Oracle Container Registry and Docker Hub.

Starting with Oracle Linux 8 Update 2, the Unbreakable Enterprise Kernel Release 6 (UEK R6) is included on the installation image along with the Red Hat Compatible Kernel (RHCK). For new installations, UEK R6 is enabled and installed as the default kernel on first boot.

UEK R6 is a heavily tested and optimized operating system kernel for Oracle Linux 7 Update 7, and later, and Oracle Linux 8 Update 1, and later. The kernel is developed, built, and tested on 64-bit Arm (aarch64) and 64-bit AMD/Intel (x86-64) platforms. UEK R6 is based on the mainline Linux kernel version 5.4 and includes driver updates, bug fixes, and security fixes; additional features are enabled to provide support for key functional requirements and patches are applied to improve performance and optimize the kernel for use in enterprise operating environments.

Oracle Linux 8 Update 2 ships with:

  • UEK R6 (kernel-uek-5.4.17-2011.1.2.el8uek) for x86_64 (Intel & AMD) and aarch64 (Arm) platforms
  • RHCK (kernel-4.18.0-193.el8) for x86_64 (Intel & AMD) platform

where both include bug fixes, security fixes and enhancements.

Notable New Features for All Architectures

  • Unbreakable Enterprise Kernel Release 6 (UEK6)
  • Red Hat Compatible Kernel (RHCK)
    • "kexec-tools" documentation now includes Kdump FCoE target support
    • "numactl" manual page updated to clarify information about memory usage
    • "rngd" can run with non-root privileges
    • Secure Boot available by default
  • Compiler and Development Toolset (available as Application Streams)
    • Compiler and Toolset
      • Clang toolset updated to version 9.0.0
      • Rust toolset updated to version 1.39
      • Go toolset updated to 1.13.4
    • GCC Toolset 9
      • GCC version updated to 9.2.1
      • GDB version updated to 8.3
      • For further GCC Toolset updates, please check Oracle Linux 8 Update 2 release notes
  • Database
    • Oracle Linux 8 Update 2 ships with version 8.0 of the MySQL database
  • Dynamic Programming Languages, Web
    • "maven:3.6" module stream available
    • "Python 3.8" is provided by a new python38 module. Python 3.6 continues to be supported in Oracle Linux 8.
    • The introduction of "Python 3.8" in Oracle Linux 8 Update 2 requires that you specify which version of "mod_wsgi" you want to install, as "Python 3.6" is also supported in this release.
    • "perl-LDAP" and "perl-Convert-ASN1" packages are now released as part of Oracle Linux 8 Update 2.
  • Infrastructure Services
    • "bind" updated to version 9.11.13
    • "tuned" updated to version 2.13
  • Networking
    • "eBPF" for Traffic Control kernel subsystem supported (previously available as a technology preview)
    • "firewalld" updated to version 0.8
  • Podman, Buildah, and Skopeo Container Tools are now supported on both UEK R6 and RHCK
  • Security
    • "audit" updated to version 3.0-0.14; several improvements introduced between Kernel version 4.18 (RHCK) and version 5.4 (UEK R6) of Audit.
    • "lvmdbusd" service confined by SELinux.
    • "openssl-pkcs11" updated to version 0.4.10.
    • "rsyslog" updated to version 8.1911.0.
    • SCAP Security Guide includes ACSC (Australian Cyber Security Centre) Essential Eight support.
    • SELinux
      • SELinux setools-gui and setools-console-analyses packages included
      • SELinux improved to enable confined users to manage user session services
      • semanage export able to display customizations related to permissive domains
      • semanage includes capability for listing and modifying SCTP and DCCP ports
    • "sudo" updated to version 1.8.29-3.
    • "udica" is now capable of adding new allow rules generated from SELinux denials to an existing container policy.
  • Virtualization
    • Nested Virtual Machines (VM) capability added; this enhancement enables an Oracle Linux 7 or Oracle Linux 8 VM that is running on an Oracle Linux 8 physical host to perform as a hypervisor, and host its own VMs.
      • Note: On AMD64 systems, nested KVM virtualization continues to be a Technology Preview.
    • virt-manager application deprecated; Oracle recommends using the Cockpit web console to manage virtualization in a GUI.
  • Cockpit Web Console
    • Cockpit web console login timeout; web console sessions will be automatically logged out after 15 minutes of inactivity
    • Option for logging into the web console with a TLS client certificate added
    • Creating a new file system in the web console requires a specified mount point
    • Virtual Machines management page improvements

Important changes in this release

  • UEK R6 brought back support for Btrfs and OCFS2 file systems. These are not available while using the Red Hat Compatible Kernel (RHCK).

Further Information on Oracle Linux 8

For more details about these and other new features and changes, please consult the Oracle Linux 8 Update 2 Release Notes and Oracle Linux 8 Documentation.

Oracle Linux can be downloaded, used, and distributed free of charge and all updates and errata are freely available. Customers decide which of their systems require a support subscription. This makes Oracle Linux an ideal choice for development, testing, and production systems. The customer decides which support coverage is best for each individual system while keeping all systems up to date and secure.

Customers with Oracle Linux Premier Support also receive support for additional Linux programs, including Gluster Storage, Oracle Linux Software Collections, and zero-downtime kernel updates using Oracle Ksplice.

Application Compatibility

Oracle Linux maintains user-space compatibility with Red Hat Enterprise Linux (RHEL), which is independent of the kernel version that underlies the operating system. Existing applications in user space will continue to run unmodified on the Unbreakable Enterprise Kernel Release 6 (UEK R6) and no re-certifications are needed for RHEL certified applications.

For more information about Oracle Linux, please visit www.oracle.com/linux.

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