Chapter 10. Deprecated functionalities

The X25519-MLKEM768 value in system-wide cryptographic policies is deprecated and aliased to the MLKEM768-X25519 value. This unifies the concatenation order, allowing both variants to work.

Jira:RHEL-103793

Starting with RHEL 9.7, the BIND auto-dnssec parameter is deprecated and will be removed in a future release. As a replacement, use the dnssec-policy parameter to specify a complete Key and Signing Policy (KASP) that groups all related configurations into a single, intuitive block.

For further details and information about migrating to dnssec-policy, see DNSSEC Key and Signing Policy in the BIND 9 upstream documentation.

Jira:RHELDOCS-21505^[1]

Before this update, you could configure Directory Server to prevent moving entries between sub-trees in a database. Because of the stability issues, this feature is deprecated and will be removed in a future major RHEL release.

Do not use the nsslapd-subtree-rename-switch parameter to deactivate moving entries between sub-trees. As an alternative, you can deactivate moving the entries by creating an access control instruction (ACI).

Jira:RHELDOCS-20337^[1]

With this update, the te and cte CPU features have been deprecated for IBM z16 KVM VMs. Note, however, that migrating a virtual machine with CPU model host-model from an IBM z16 host to an IBM z17 host does not require any adjustments to CPU feature settings.

Jira:RHEL-89415^[1]

The --live option for the virsh dump command has become deprecated, and will be removed in a future release of RHEL. After the removal, if you attempt to create a virtual machine dump by using virsh dump with the --live option, the command will fail.

Jira:RHEL-57677

Starting with RHEL 9.7, the nginx 1.22 container image is deprecated and will no longer receive feature updates.

Jira:RHELDOCS-21687

In RHEL 9.6, Keylime is provided with the keylime-policy tool, which replaces the following policy management scripts:

These scripts have been deprecated and will be removed in a future major version of RHEL.

Jira:RHELDOCS-19815^[1]

The Ignition tool, used to inject the user configuration into the Simplified Installer, AMI, and VMDK RHEL for Edge images types at an early stage of the boot process, has been deprecated in RHEL 9 and might be removed in a future major release.

Jira:RHELDOCS-19754^[1]

Because Red Hat subscription services have transitioned to account-level subscription management with Simple Content Access, the following options of the list module are deprecated and might be removed in a future major release:

For more information about these transitions, see the Transition of Red Hat’s subscription services to the Red Hat Hybrid Cloud Console article.

Jira:RHEL-66122

Using the %patch directive without a number specified as a shorthand for %patch 0 to apply the zero-th patch has been deprecated. Therefore, if you want to use %patch, a warning message suggests you to use the explicit syntax, for example, %patch 0 or %patch -P 0 to apply the zero-th patch.

Jira:RHELDOCS-19810^[1]

In RHEL 9, the ipset utility is deprecated and is planned to be removed in a future major release. Red Hat will provide bug fixes and support for this feature during the current release lifecycle, but this feature will no longer receive enhancements. As an alternative to ipset, you can use the nftables sets functionality instead.

Jira:RHELDOCS-20146^[1]

Support for the block translation table driver (btt.ko) has been deprecated and will be removed in the future major RHEL release. Red Hat will provide bug fixes and support for configuring Non-Volatile Dual In-line Memory Modules (NVDIMM) namespaces by using sector mode during the current release lifecycle. However, this feature will no longer receive enhancements and will be removed.

Jira:RHELDOCS-19716^[1]

In RHEL 9.6, the nvme_core.multipath parameter is deprecated and is planned to be removed in a future release. Red Hat will provide bug fixes and support for this feature during the current release lifecycle, but this feature will no longer receive enhancements and will be removed in a future major release.

Jira:RHELDOCS-19809^[1]

The ad_allow_remote_domain_local_groups option in sssd.conf has been deprecated in Red Hat Enterprise Linux (RHEL) 9.6. The ad_allow_remote_domain_local_groups option might be removed from a future release of RHEL.

Jira:RHELDOCS-19455^[1]

The rhel9/firefox-flatpak and rhel9/thunderbird-flatpak Flatpak images, which are available in RHEL 9 as Technology Previews, have been deprecated and will be replaced by their RHEL 10 versions.

Jira:RHEL-91106^[1]

Evince, a document viewer for the GNOME desktop, has been deprecated and will be removed in a future major release.

Jira:RHELDOCS-19889^[1]

The power-profile-daemon package has been deprecated and is replaced by the tuned-ppd package. In new installations of RHEL 9.6, the tuned-ppd package is installed by default.

For systems updated to RHEL 9.6 from earlier versions, power-profile-daemon remains installed. If your scenario requires the use of tuned-ppd on an updated RHEL 9.6 version, install it manually:

# dnf install tuned-ppd

To verify that the package is installed, enter the following command:

# rpm -q tuned-ppd
tuned-ppd-2.25.1-1.el9.noarch

Jira:RHEL-68152

With a future major update of RHEL, the mssql_accept_microsoft_odbc_driver_17_for_sql_server_eula variable will no longer be supported in the mssql system role because the role can now install the odbc driver for mssql_tools version 17 and 18. Therefore, you must use the mssql_accept_microsoft_odbc_driver_for_sql_server_eula variable without the version number instead.

Important: If you use the deprecated variable with the version number mssql_accept_microsoft_odbc_driver_17_for_sql_server_eula, the role notifies you to use the new variable mssql_accept_microsoft_odbc_driver_for_sql_server_eula. However, the deprecated variable continues to work.

Jira:RHEL-69311

The rsyslog container image has been deprecated and will be removed in a future major release.

Jira:RHELDOCS-19523^[1]

The runc is deprecated and will be removed in RHEL 10.0. The default container runtime in RHEL 9 is crun. The crun is a fast and low-memory footprint OCI container runtime written in C. The crun binary is up to 50 times smaller and up to twice as fast as the runc binary. Using crun, you can also set a minimal number of processes when running your container. The crun runtime also supports OCI hooks.

Jira:RHEL-69742

The podman-tests package has been deprecated.

Jira:RHEL-67859

The nodejs-18 and nodejs-18-minimal container images are now deprecated and will no longer receive feature updates. Use nodejs-22 and nodejs-22-minimal instead.

Jira:RHELDOCS-20283^[1]

The ruby-31 container image is deprecated and will no longer receive feature updates. Use the ruby-33 container image instead.

Jira:RHELDOCS-20519^[1]

The php-81 container image is now deprecated and will no longer receive feature updates. Use php-83 instead.

Jira:RHELDOCS-20718^[1]

The Open Vulnerability Assessment Language (OVAL) data format, which provides declarative security data processed by the OpenSCAP suite, is deprecated and will be removed in a future major release. Red Hat continues to provide declarative security data in the Common Security Advisory Framework (CSAF) format, which is the successor of OVAL.

For more information, see the OVAL v2 Announcement.

Alternatively, you can us Red Hat Lightspeed for RHEL vulnerability service, for more information, follow Assessing and Monitoring Security Vulnerabilities on RHEL Systems.

Jira:RHELDOCS-17532^[1]

The Libgcrypt cryptographic library provided by the libgcrypt package is deprecated and may be removed in a future major release. Instead, use the libraries listed in the RHEL core cryptographic components article (Red Hat Knowledgebase).

Jira:RHELDOCS-17508^[1]

The fips-mode-setup tool, which switches the system to FIPS mode, is deprecated in RHEL 9. You can still use the fips-mode-setup command to check whether FIPS mode is enabled.

To operate a system compliant with FIPS 140, install a system in FIPS mode in one of the following ways:

The fips-mode-setup tool will be removed in the next major release.

Jira:RHELDOCS-19284

Previously, the command update-ca-trust updated the system certificate authority (CA) store regardless of the arguments entered. This update introduces the extract subcommand for updating the CA store. You can also specify the location to which the CA certificates are extracted by using the --output argument. For compatibility with earlier versions of RHEL, entering update-ca-trust to update the CA store with any argument other than -o or --help, and even without any argument, is still supported for the duration of RHEL 9, but will be removed by the next major release. Update your calls to update-ca-trust extract.

Jira:RHEL-54695^[1]

If Stunnel is configured in client mode, the CAfile directive can point to a file that contains trusted root certificates in the BEGIN TRUSTED CERTIFICATE format. This method is deprecated and might be removed in a future major version. In a future version, stunnel will pass the value of the CAfile directive to a function that does not support the BEGIN TRUSTED CERTIFICATE format. As a consequence, if you use CAfile = /etc/pki/tls/certs/ca-bundle.trust.crt, change the location to CAfile = /etc/pki/tls/certs/ca-bundle.crt.

Jira:RHEL-52317^[1]

The Digital Signature Algorithm (DSA), which was created by the National Institute of Standards and Technology (NIST) and is now completely deprecated by NIST, is deprecated in the Network Security Services (NSS) cryptographic library. You can instead use algorithms such as RSA, ECDSA, and EdDSA.

The SEED algorithm, which was created by the Korea Information Security Agency (KISA) and has been previously disabled upstream, is deprecated in the NSS cryptographic library.

Jira:RHELDOCS-19004^[1]

The pam_ssh_agent_auth package is deprecated and might be removed in a future major release.

Jira:RHELDOCS-18312^[1]

The compatibility library for OpenSSL 1.1, compat-openssl11, is now deprecated, and it might be removed in a future major release. OpenSSL 1.1 is no longer maintained upstream and applications that use the OpenSSL TLS toolkit should be migrated to version 3.x.

Jira:RHELDOCS-18480^[1]

The use of the SHA-1 algorithm at SECLEVEL=2 is deprecated in OpenSSL and might be removed in a future major release.

Jira:RHELDOCS-18701^[1]

The use of the OpenSSL Engines API in Stunnel is deprecated and will be removed in a future major release. The most common use is to access hardware security tokens that use PKCS#11 through the openssl-pkcs11 package. As a replacement, you can use pkcs11-provider, which uses the new OpenSSL Providers API.

Jira:RHELDOCS-18702^[1]

OpenSSL Engines are deprecated and will be removed in the near future. Instead of using engines, you can use the pkcs11-provider as a replacement.

Jira:RHELDOCS-18703^[1]

The Digital Signature Algorithm (DSA) is deprecated in the GnuTLS secure communications library and will be removed in a future major version of RHEL. DSA was previously deprecated by the National Institute of Standards and Technology (NIST), and is not considered secure. You can use ECDSA instead to ensure compatibility with future versions.

Jira:RHELDOCS-19224^[1]

The scap-workbench package is deprecated. The scap-workbench graphical utility was designed to perform configuration and vulnerability scans on a single local or remote system. As an alternative, you can scan local systems for configuration compliance by using the oscap command and remote systems by using the oscap-ssh command. For more information, see Configuration compliance scanning.

Jira:RHELDOCS-19028^[1]

The oscap-anaconda-addon, which provided means to deploy baseline-compliant RHEL systems by using the graphical installation, is deprecated. As an alternative, you can build RHEL images that comply with a specific standard by Creating pre-hardened images with RHEL image builder OpenSCAP integration.

Jira:RHELDOCS-19029^[1]

Because of a simplified customer experience in Red Hat subscription services, which have transitioned to the Red Hat Hybrid Cloud Console and to account level subscription management with Simple Content Access, the following modules have been deprecated and will be removed in a future major release:

Jira:RHEL-29178

The DNF debug plug-in, which includes the dnf debug-dump and dnf debug-restore commands, has been deprecated and will be removed from the dnf-plugins-core package in the next major RHEL release.

Jira:RHELDOCS-18592^[1]

The support for the libreport library has been deprecated and will be removed from DNF in the next major RHEL release.

Jira:RHELDOCS-18593^[1]

The following packages are deprecated in RHEL 9 and will not be distributed in later major versions of RHEL:

Jira:RHEL-22385^[1]

RHEL 9 provides the Soft-iWARP driver as an unsupported Technology Preview. Starting with RHEL 9.5, this driver is deprecated and will be removed in RHEL 10.

Jira:RHELDOCS-18699^[1]

Previously, you could configure NetworkManager in RHEL 9 to use a DHCP client from the dhcp-client package. However, the option to use the dhclient utility is now deprecated and results in a warning being displayed at the NetworkManager startup. To configure NetworkManager as described above, switch to the internal DHCP library. In RHEL 10, the dhcp-client package is no longer available and the applications configured to use the dhclient utility use the internal DHCP library instead.

Jira:RHEL-24622

The perl(Mail::Sender) module is now deprecated and will be removed from the next major release without any replacement. As a result, the checkbandwidth script from net-snmp-perl package does not support email alerts when bandwidth high/low levels for a host or interface are reached.

Jira:RHELDOCS-18959^[1]

Support for Non-volatile Memory Express (NVMe) devices has been deprecated and will be removed from the lsscsi package in the future major RHEL release. Use native tools such as nvme-cli, lsblk, and blkid instead.

Jira:RHELDOCS-19068^[1]

Support for Non-volatile Memory Express (NVMe) devices has been deprecated and will be removed from the sg3_utils package in the future major RHEL release. You can use native tools (nvme-cli) instead.

Jira:RHELDOCS-19069^[1]

The following features were deprecated as of Red Hat Enterprise Linux 9.5 and will be removed in the next major release. The pcs command-line interface produces a warning when you attempt to configure a system with these features.

Jira:RHEL-34781

The Red Hat Enterprise Linux (RHEL) Resilient Storage Add-On has been deprecated as of RHEL 9. The Resilient Storage Add-On will no longer be supported starting with Red Hat Enterprise Linux 10 and any subsequent releases after RHEL 10. The RHEL Resilient Storage Add-On will continue to be supported with earlier versions of RHEL (7, 8, 9) and throughout their respective maintenance support lifecycles.

Jira:RHELDOCS-19022^[1]

The Redis key-value store has been deprecated and will be replaced with Valkey in the next major version of RHEL. As a result, Grafana, PCP, and the grafana-pcp plug-in will use Valkey to store data instead of Redis in RHEL 10.

Jira:RHELDOCS-18207^[1]

The HTML content of the llvm-doc package will be removed in a future RHEL release and replaced with a single HTML file pointing to online documentation at llvm.org. Users of llvm-doc that do not have network access will need an alternative way to access LLVM documentation.

Jira:RHELDOCS-19013^[1]

In RHEL 9.5, the pam_console module is deprecated and is planned to be removed in a future release. The pam_console module grants file permissions and authentication capabilities to users logged in at the physical console or terminals, and adjusts these privileges based on console login status and user presence. As an alternative to pam_console, you can use the systemd-logind system service instead. For configuration details, see the logind.conf(5) man page.

Jira:RHELDOCS-18158^[1]

The sss_ssh_knownhostsproxy has been deprecated and will be replaced by a more efficient tool in RHEL 10. sss_ssh_knownhostsproxy will be kept for backwards compatibility in RHEL 9 and will be removed in RHEL 10. Support for the ssh KnownHostsCommand option will be added in a future release.

Jira:RHELDOCS-19115^[1]

The Totem media player has been deprecated in RHEL 9.5 and will be removed in a future major release.

Jira:RHELDOCS-19050^[1]

The power-profiles-daemon package that provides the power mode configuration in GNOME has been deprecated and will be removed in a future major release.

You can use Tuned as a replacement for power mode configuration in GNOME. You can use the tuned-ppd API translation daemon as a drop-in replacement for power-profiles-dameon.

Jira:RHELDOCS-19093^[1]

gedit, the default graphical text editor in Red Hat Enterprise Linux, has been deprecated and will be removed in a future major release. Instead, use GNOME Text Editor.

Jira:RHELDOCS-19149^[1]

Qt 5 libraries have been deprecated and will be removed in a future major release. Qt 5 libraries are replaced with Qt 6 libraries, with new functionality and better support.

For more information, see Porting to Qt 6.

Jira:RHELDOCS-19133^[1]

The WebKitGTK web browser engine has been deprecated and will be removed in a future major release.

As a consequence, you will no longer be able to build applications that depend on WebKitGTK. Desktop applications other than Mozilla Firefox can no longer display web content. There is no alternative web browser engine provided in RHEL 10.

Jira:RHELDOCS-19171^[1]

Evolution is a GNOME application that provides integrated email, calendar, contact management, and communications functionality. The application and its plugins has been deprecated and will be removed in a future major version. You can find an alternative in a third party source, for example on Flathub.

Jira:RHELDOCS-19147^[1]

The Festival speech synthesizer has been deprecated and will be removed in a future major version.

As an alternative, you can use the Espeak NG speech synthesizer.

Jira:RHELDOCS-19139^[1]

The Eye of GNOME (eog) image viewer application has been deprecated in RHEL 9.

As an alternative, you can use the Loupe application.

Jira:RHELDOCS-19135^[1]

The Cheese camera application has been deprecated and will be removed in a future major version.

As an alternative, you can use the Snapshot application.

Jira:RHELDOCS-19137^[1]

Devhelp, a graphical developer tool for browsing and searching API documentation, has been deprecated and will be removed in a future major version. You can now find API documentation online in specific upstream projects.

Jira:RHELDOCS-19154^[1]

gtkmm is a C++ interface for the GTK graphical toolkit. The gtkmm version that was based on GTK 3 has been deprecated with all its dependencies and will be removed in a future major version. To access gtkmm in RHEL 10, migrate to the gtkmm version based on GTK 4.

Jira:RHELDOCS-19143^[1]

The Inkscape vector graphics editor has been deprecated and will be removed in a future major version.

Jira:RHELDOCS-19151^[1]

The PulseAudio daemon, and its packages pulseaudio and alsa-plugins-pulseaudio, have been deprecated and will be removed in a future major release.

Note that the PulseAudio client libraries and tools are not deprecated, this change only impacts the audio daemon that runs on the system.

You can use the PipeWire audio system as a replacement, which has also been the default audio daemon since RHEL 9.0. PipeWire also provides an implementation of the PulseAudio APIs.

Jira:RHELDOCS-19080^[1]

The container_image_user and container_image_password variables are deprecated. In a future major release of RHEL, these variables will be removed. You can use the podman_registry_username and podman_registry_password variables instead.

For more details, see the resources in the /usr/share/doc/rhel-system-roles/podman/ directory.

Jira:RHELDOCS-18803^[1]

Internet Preboot eXecution Environment (iPXE) firmware provides a range of boot options over a network often used in environments, where machines need to boot remotely. Among others, it contains a large number of device drivers. The following have been marked as deprecated and will be removed in the RHEL 10 release:

Instead, iPXE now depends on the platform firmware to provide a NIC driver for the network boot. The /usr/share/ipxe/ipxe-snponly-x86_64.efi and /usr/share/ipxe/undionly.kpxe iPXE binary files are the part of the ipxe-bootimgs package and use the NIC driver provided by the platform firmware.

Jira:RHELDOCS-18531

Using the virt-v2v tool to convert virtual machines from a RHEL 5 Xen host to KVM has become deprecated, and will be removed in a future major release of RHEL. For details, see the Red Hat Knowledge Base.

Jira:RHELDOCS-19193^[1]

In RHEL 9.5, the following is deprecated in Podman v5.0:

Jira:RHELDOCS-19021^[1]

The runc container runtime is deprecated and will be removed in a future major release of RHEL. The default container runtime is crun.

Jira:RHELDOCS-19012^[1]

The built-in documentation from spokes and hubs of all Anaconda user interfaces, which is available during Anaconda installation, has been deprecated. As a replacement, the Anaconda user interfaces will be self-descriptive and users can refer to the official RHEL documentation in future major RHEL releases.

Jira:RHELDOCS-17309^[1]

Previously, the installation program allowed reconfiguring NVDIMM devices during installation. This support for NVDIMM devices during the Kickstart and GUI installation has been deprecated, and will be removed in the next major RHEL release. The NVDIMM devices in the sector mode will still be visible and usable in the installation program.

Jira:RHELDOCS-17702

The OpenSSL 3.0 TLS toolkit deprecated the Engines API. The Engines interface is superseded by the Providers API. The migration of applications and existing engines to Providers is underway. The deprecated Engines API may be removed in a future major release.

Jira:RHELDOCS-17958^[1]

As a part of the ongoing migration of deprecated OpenSSL engines to the Providers API, the pkcs11-provider package replaces the openssl-pkcs11 package (engine_pkcs11). The openssl-pkcs11 package is now deprecated. The openssl-pkcs11 package may be removed in a future major release.

Jira:RHELDOCS-16716^[1]

The OpenSSL portable certificate and signing containers available in the ubi8/openssl and ubi9/openssl repositories in the Red Hat Ecosystem Catalog are now deprecated due to low demand.

Jira:RHELDOCS-17974^[1]

The %vmeff metric from the sysstat package to measure the page reclaim efficiency will no longer be supported in a future major version of RHEL. The values of the %vmeff column returned by the sar -B command are incorrect because sysstat does not parse all relevant /proc/vmstat values provided by later kernel versions.

You can calculate the %vmeff value manually from the /proc/vmstat file. For details, see Why the sar(1) tool reports %vmeff values beyond 100 % in RHEL 8 and RHEL 9?

Jira:RHELDOCS-17015^[1]

The cgroups is a kernel subsystem used for process tracking, system resource allocation and partitioning. Systemd service manager supports booting in the cgroups v1 mode as well as in cgroups v2 mode. In Red Hat Enterprise Linux 9, the default mode is v2. In Red Hat Enterprise Linux 10, systemd will not support booting in the cgroups v1 mode and only cgroups v2 mode will be available.

Jira:RHELDOCS-17545^[1]

The lockdown feature in firewalld is deprecated because it cannot prevent processes that are running as root from adding themselves to the allow list. The lockdown feature may be removed in a future major RHEL release.

Jira:RHEL-17708

Red Hat is committed to using conscious language. Therefore, the connection.master, connection.slave-type, and connection.autoconnect-slaves properties were renamed. To ensure backward compatibility, aliases have been created that map the old property names to the new ones:

Note that the connection.master, connection.slave-type, and connection.autoconnect-slaves aliases are deprecated and will be removed in a future RHEL version.

Jira:RHEL-17619^[1]

Internet Systems Consortium (ISC) has announced the end of maintenance for ISC DHCP as of the end of 2022. As a result, Red Hat has decided to deprecate the use of client-side and server-side DHCP packages in RHEL 9 and not to distribute them in later major versions of RHEL. Customers must prepare for the transition to available alternatives, such as dhcpcd and ISC Kea.

Jira:RHELDOCS-17135^[1]

The following MD RAID kernel modules have been deprecated and will be removed in a future major RHEL release:

Jira:RHEL-30730^[1]

The Virtual Data Optimizer (VDO) sysfs parameters have been deprecated and will be removed in a future major RHEL release. Except for log_level, all module-level sysfs parameters for the kvdo module will be removed. For individual dm-vdo targets, all sysfs parameters specific to VDO will also be removed. There is no change for the parameters that are common to all DM targets. Configuration values for dm-vdo targets, which are currently set by updating the removed module-level parameters, can no longer be changed.

Statistics and configuration values for dm-vdo targets will no longer be accessible through sysfs. But these values are still accessible by using dmsetup message stats, dmsetup status, and dmsetup table dmsetup commands

Jira:RHEL-30525

Linking against 32-bit multilib packages is deprecated. The *.i686 packages will remain supported for the life cycle of Red Hat Enterprise Linux 9, but will be removed in the next major version of RHEL.

Jira:RHELDOCS-17917^[1]

The enumeration feature enables you to list all users or groups by using getent passwd or getent group commands without arguments for Active Directory (AD), Identity Management (IdM), and LDAP providers. Support for the enumeration feature has been deprecated for AD and IdM in Red Hat Enterprise Linux (RHEL) 9. The enumeration feature will be removed for AD and IdM in RHEL 10.

Jira:RHELDOCS-22204^[1]

The libsss_simpleifp subpackage that provides the libsss_simpleifp.so library has been deprecated in Red Hat Enterprise Linux (RHEL) 9. The libsss_simpleifp subpackage might be removed from a future release of RHEL.

Jira:RHELDOCS-22205^[1]

The TigerVNC remote desktop solution is now deprecated. It will be removed in a future major RHEL release and replaced by a different remote desktop solution.

TigerVNC provides the server and client implementation of the Virtual Network Computing (VNC) protocol in RHEL 9.

The following packages are deprecated:

The Connections application (gnome-connections) continues to be supported as an alternative VNC client, but it does not provide a VNC server.

Jira:RHELDOCS-17782^[1]

Because Microsoft ended support for the following versions of Windows, Red Hat has also removed support for using these versions as a guest operating system.

Jira:RHEL-11810

Creating and reverting to a virtual machine (VM) snapshot has become deprecated for snapshots that use the internal snapshot mechanism, and will be removed in a future major release of RHEL. Instead, use snapshots with the external mechanism.

For more information, see Support limitations for virtual machine snapshots.

Jira:RHELDOCS-20135^[1]

With this update, the non-volatile memory library (nvml) packages have become deprecated, and will be removed in a future major version of RHEL. As a consequence, when the package removal occurs, it will no longer be possible to pass persistent memory (pmem) devices to the virtual machines (VMs). Note that emulated NVDIMM devices backed by volatile memory or files will still be available, but will not be possible to configure as persistent.

Jira:RHELDOCS-17989

The support for pasta as a network name value is deprecated and will not be accepted in the next major release of Podman, version 5.0. You can use the pasta network name value to create a unique network mode within Podman by employing the podman run --network and podman create --network commands.

Jira:RHELDOCS-17038^[1]

The BoltDB database backend is deprecated as of RHEL 9.4. In a future version of RHEL, the BoltDB database backend will be removed and will no longer be available to Podman. For Podman, use the SQLite database backend, which is now the default as of RHEL 9.4.

Jira:RHELDOCS-17495^[1]

The following will be deprecated in the upcoming Podman v5.0, which will be released in RHEL 9.5 and RHEL 10.0 Beta:

The following changes are planned for RHEL 10.0 Beta:

Jira:RHELDOCS-17462^[1]

The rhel9/openssl container image has been deprecated.

Jira:RHELDOCS-18106^[1]

The initial-setup package has been deprecated in Red Hat Enterprise Linux 9.3 and will be removed in the next major RHEL release. As a replacement, use gnome-initial-setup for the graphical user interface.

Jira:RHELDOCS-16393^[1]

The provider_hostip and provider_fedora_geoip values that specified the GeoIP API for the inst.geoloc= boot option are deprecated. As a replacement, you can use the geolocation_provider=URL option to set the required geolocation in the installation program configuration file. You can still use the inst.geoloc=0 option to disable the geolocation.

Jira:RHELPLAN-168262^[1]

Applications can configure the kernel’s IPsec implementation by using the PV_KEYv2 and the newer netlink API. PV_KEYv2 is not actively maintained upstream and misses important security features, such as modern ciphers, offload, and extended sequence number support. As a result, starting with RHEL 9.3, the PV_KEYv2 API is deprecated and will be removed in the next major RHEL release. If you use this kernel API in your application, migrate it to use the modern netlink API as an alternative.

Jira:RHEL-1015^[1]

pmdk is a collection of libraries and tools for System Administrators and Application Developers to simplify managing and accessing persistent memory devices. pmdk and support library have been deprecated in RHEL 9. This also includes the -debuginfo packages.

The following list of binary packages produced by pmdk, including the nvml source package have been deprecated:

Jira:RHELDOCS-16432^[1]

The rhel9/inkscape-flatpak and rhel9/libreoffice-flatpak Flatpak images, which are available as Technology Previews, have been deprecated.

Red Hat recommends the following alternatives to these images:

Jira:RHELDOCS-17102^[1]

Previously, as a Technology Preview, it was possible to divide a physical Intel GPU device into multiple virtual devices referred to as mediated devices. These mediated devices could then be assigned to multiple virtual machines (VMs) as virtual GPUs. As a result, these VMs shared the performance of a single physical Intel GPU, however only selected Intel GPUs were compatible with this feature.

Since RHEL 9.3, the Intel vGPU feature has been removed entirely.

Jira:RHELPLAN-157294^[1]

OpenSSL no longer supports RSA encryption without padding in FIPS mode. RSA encryption without padding is uncommon and is rarely used. Note that key encapsulation with RSA (RSASVE) does not use padding but is still supported.

Jira:RHELPLAN-148207^[1]

Because X9.31 RSA signatures were removed from the FIPS 186-5 standard, OpenSSL no longer supports signing or signature verification with RSA keys with X9.31 padding in FIPS mode.

Jira:RHELPLAN-139207^[1]

The dump utility used for backup of file systems has been deprecated and will not be available in RHEL 9.

In RHEL 9, Red Hat recommends using the tar, dd, or bacula, backup utility, based on type of usage, which provides full and safe backups on ext2, ext3, and ext4 file systems.

Note that the restore utility from the dump package remains available and supported in RHEL 9 and is available as the restore package.

Jira:RHELPLAN-94704^[1]

The Bacula backup system supported multiple database backends: PostgreSQL, MySQL, and SQLite. The SQLite backend has been deprecated and will become unsupported in a later release of RHEL. As a replacement, migrate to one of the other backends (PostgreSQL or MySQL) and do not use the SQLite backend in new deployments.

Jira:RHEL-6856

The kexec_load system call, which loads the second kernel, will not be supported in future RHEL releases. The kexec_file_load system call replaces kexec_load and is now the default system call on all architectures.

For more information, see Is kexec_load supported in RHEL9?.

Jira:RHELPLAN-129876^[1]

The deprecated --token=<TOKEN> option of the subscription-manager register command will no longer be a supported authentication method from the end of November 2024. The default entitlement server, subscription.rhsm.redhat.com, will no longer be allowing token-based authentication. As a consequence, if you use subscription-manager register --token=<TOKEN>, the registration will fail with the following error message:

Token authentication not supported by the entitlement server

To register your system, use other supported authorization methods, such as including paired options --username / --password OR --org / --activationkey with the subscription-manager register command.

Jira:RHELPLAN-146101^[1]

The SSSD files provider has been deprecated in Red Hat Enterprise Linux (RHEL) 9. The files provider might be removed from a future release of RHEL.

Jira:RHELPLAN-139805^[1]

The LibreOffice RPM packages are now deprecated and will be removed in a future major RHEL release. LibreOffice continues to be fully supported through the entire life cycle of RHEL 7, 8, and 9.

As a replacement for the RPM packages, Red Hat recommends that you install LibreOffice from either of the following sources provided by The Document Foundation:

Jira:RHELDOCS-16300^[1]

With this update, migrating running virtual machines using Remote Direct Memory Access (RDMA) has become deprecated. As a result, it is still possible to use the rdma migration URI to request migration over RDMA, but this feature will become unsupported in a future major release of RHEL.

Jira:RHELPLAN-153267^[1]

The Container Network Interface (CNI) network stack is deprecated and will be removed from Podman in a future minor release of RHEL. Previously, containers connected to the single Container Network Interface (CNI) plugin only by using DNS. Podman v.4.0 introduced a new Netavark network stack. You can use the Netavark network stack with Podman and other Open Container Initiative (OCI) container management applications. The Netavark network stack for Podman is also compatible with advanced Docker functionalities. Containers in multiple networks can access containers on any of those networks.

For more information, see Switching the network stack from CNI to Netavark.

Jira:RHELDOCS-16756^[1]

The Container Network Interface (CNI) network stack is deprecated and will be removed in a future release. Use the Netavark network stack instead. For more information, see Switching the network stack from CNI to Netavark.

Jira:RHELDOCS-17518^[1]

Elliptic curve cryptography parameters, private keys, public keys, and certificates that specified explicit curve parameters no longer work in FIPS mode. Specifying the curve parameters using ASN.1 object identifiers, which use one of the FIPS-approved curves, still works in FIPS mode.

Jira:RHELPLAN-113856^[1]

Key sizes smaller than 2048 bits are deprecated by openssl 3.0 and no longer work in Go’s FIPS mode.

Jira:RHELPLAN-129104^[1]

Some PKCS1 v1.5 modes are not approved in FIPS-140-3 for encryption and are disabled. They will no longer work in Go’s FIPS mode.

Jira:RHELPLAN-123778^[1]

The legacy GTK 2 toolkit and the following, related packages have been deprecated:

Several other packages currently depend on GTK 2. These have been modified so that they no longer depend on the deprecated packages in a future major RHEL release.

If you maintain an application that uses GTK 2, Red Hat recommends that you port the application to GTK 4.

Jira:RHELPLAN-131882^[1]

A significant number of CPU models have become deprecated and will become unsupported for use in virtual machines (VMs) in a future major release of RHEL. The deprecated models are as follows:

To check whether your VM is using a deprecated CPU model, use the virsh dominfo utility, and look for a line similar to the following in the Messages section:

tainted: use of deprecated configuration settings
deprecated configuration: CPU model 'i486'

Jira:RHELPLAN-114513^[1]

The following Kickstart commands have been deprecated:

Note that where only specific options are listed, the base command and its other options are still available and not deprecated. Using the deprecated commands in Kickstart files prints a warning in the logs. You can turn the deprecated command warnings into errors with the inst.ksstrict boot option.

Jira:RHELPLAN-60153^[1]

The usage of the SHA-1 message digest for cryptographic purposes has been deprecated in RHEL 9. The digest produced by SHA-1 is not considered secure because of many documented successful attacks based on finding hash collisions. The RHEL core crypto components no longer create signatures using SHA-1 by default. Applications in RHEL 9 have been updated to avoid using SHA-1 in security-relevant use cases.

Among the exceptions, the HMAC-SHA1 message authentication code and the Universal Unique Identifier (UUID) values can still be created using SHA-1 because these use cases do not currently pose security risks. SHA-1 also can be used in limited cases connected with important interoperability and compatibility concerns, such as Kerberos and WPA-2. See the List of RHEL applications using cryptography that is not compliant with FIPS 140-3 section in the RHEL 9 Security hardening document for more details.

If your scenario requires the use of SHA-1 for verifying existing or third-party cryptographic signatures, you can enable it by entering the following command:

# update-crypto-policies --set DEFAULT:SHA1

Alternatively, you can switch the system-wide crypto policies to the LEGACY policy. Note that LEGACY also enables many other algorithms that are not secure.

Jira:RHELPLAN-110763^[1]

The /etc/fapolicyd/rules.d/ directory for files containing allow and deny execution rules replaces the /etc/fapolicyd/fapolicyd.rules file. The fagenrules script now merges all component rule files in this directory to the /etc/fapolicyd/compiled.rules file. Rules in /etc/fapolicyd/fapolicyd.trust are still processed by the fapolicyd framework but only for ensuring backward compatibility.

Jira:RHELPLAN-112355^[1]

The secure copy protocol (SCP) is deprecated because it has known security vulnerabilities. The SCP API remains available for the RHEL 9 lifecycle but using it reduces system security.

Jira:RHELPLAN-99136^[1]

The Digest-MD5 authentication mechanism in the Simple Authentication Security Layer (SASL) framework is deprecated, and it might be removed from the cyrus-sasl packages in a future major release.

Jira:RHELPLAN-94096^[1]

Support for indicating FIPS mode through the /etc/system-fips file has been removed, and the file will not be included in future versions of RHEL. To install RHEL in FIPS mode, add the fips=1 parameter to the kernel command line during the system installation. You can check whether RHEL operates in FIPS mode by displaying the /proc/sys/crypto/fips_enabled file.

Jira:RHELPLAN-103232^[1]

The libcrypt.so.1 library is now deprecated, and it might be removed in a future version of RHEL.

Jira:RHELPLAN-106338^[1]

RHEL 9 currently provide Berkeley DB (libdb) version 5.3.28, which is distributed under the LGPLv2 license. The upstream Berkeley DB version 6 is available under the AGPLv3 license, which is more restrictive.

The libdb package is deprecated as of RHEL 9 and might not be available in future major RHEL releases.

In addition, cryptographic algorithms have been removed from libdb in RHEL 9 and multiple libdb dependencies have been removed from RHEL 9.

Users of libdb are advised to migrate to a different key-value database. For more information, see the following Red Hat Knowledgebase articles:

Jira:RHELPLAN-67314^[1]

The teamd service and the libteam library are deprecated in Red Hat Enterprise Linux 9 and will be removed in the next major release. As a replacement, configure a bond instead of a network team.

Red Hat focuses its efforts on kernel-based bonding to avoid maintaining two features, bonds and teams, that have similar functions. The bonding code has a high customer adoption, is robust, and has an active community development. As a result, the bonding code receives enhancements and updates.

For details about how to migrate a team to a bond, see Migrating a network team configuration to network bond.

Jira:RHELPLAN-69554^[1]

In RHEL 9.0 and later, connection profiles in ifcfg format are deprecated. The next major RHEL release will remove the support for this format. However, in RHEL 9, NetworkManager still processes and updates existing profiles in this format if you modify them.

By default, NetworkManager now stores connection profiles in keyfile format in the /etc/NetworkManager/system-connections/ directory. Unlike the ifcfg format, the keyfile format supports all connection settings that NetworkManager provides. For further details about the keyfile format and how to migrate profiles, see NetworkManager connection profiles in keyfile format.

Jira:RHELPLAN-58745^[1]

In RHEL 9, the iptables framework is deprecated. As a consequence, the iptables back end and the direct interface in firewalld are also deprecated. Instead of the direct interface you can use the native features in firewalld to configure the required rules.

Jira:RHELPLAN-122745^[1]

Asynchronous Transfer Mode (ATM) encapsulation enables Layer-2 (Point-to-Point Protocol, Ethernet) or Layer-3 (IP) connectivity for the ATM Adaptation Layer 5 (AAL-5). Red Hat has not been providing support for ATM NIC drivers since RHEL 7. The support for ATM implementation is being dropped in RHEL 9. These protocols are currently used only in chipsets, which support the ADSL technology and are being phased out by manufacturers. Therefore, ATM encapsulation is deprecated in Red Hat Enterprise Linux 9.

For more information, see PPP Over AAL5, Multiprotocol Encapsulation over ATM Adaptation Layer 5, and Classical IP and ARP over ATM.

Jira:RHELPLAN-113659^[1]

The lvm2-activation-generator program and its generated services lvm2-activation, lvm2-activation-early, and lvm2-activation-net are removed in RHEL 9.0. The lvm.conf event_activation setting, used to activate the services, is no longer functional. The only method for auto activating volume groups is event based activation.

Jira:RHELPLAN-107107^[1]

OpenDNSSec supports exporting Digital Signatures and authentication records using the SHA-1 algorithm. The use of the SHA-1 algorithm is no longer supported. With the RHEL 9 release, SHA-1 in OpenDNSSec is deprecated and it might be removed in a future minor release. Additionally, OpenDNSSec support is limited to its integration with Red Hat Identity Management. OpenDNSSec is not supported standalone.

Jira:RHELPLAN-88246^[1]

The dnssec-enable: no; option in the /etc/named/ipa-options-ext.conf file has been deprecated and will be removed in a future major version of RHEL. DNS Security Extensions (DNSSEC) are enabled by default and disabling them will not be possible. The dnssec-validation: no; option still continues to be available.

Jira:RHELDOCS-20464^[1]

The SSSD implicit files provider domain, which retrieves user information from local files such as /etc/shadow and group information from /etc/groups, is now disabled by default.

To retrieve user and group information from local files with SSSD:

Jira:RHELPLAN-100639^[1], Jira:RHEL-56352

Starting with Samba 4.11, the insecure Server Message Block version 1 (SMB1) protocol is deprecated and will be removed in a future release.

To improve the security, by default, SMB1 is disabled in the Samba server and client utilities.

Jira:RHELDOCS-16612^[1]

The Motif widget toolkit has been deprecated in RHEL, because development in the upstream Motif community is inactive.

The following Motif packages have been deprecated, including their development and debugging variants:

Additionally, the motif-static package has been removed.

Red Hat recommends using the GTK toolkit as a replacement. GTK is more maintainable and provides new features compared to Motif.

Jira:RHELPLAN-98983^[1]

The network teaming capabilities have been deprecated in RHEL 9. As a result, using the network RHEL System Role on a RHEL 8 control node to configure a network team on RHEL 9 nodes, shows a warning about the deprecation.

Jira:RHELPLAN-95747^[1]

The monolithic libvirt daemon, libvirtd, has been deprecated in RHEL 9, and will be removed in a future major release of RHEL. Note that you can still use libvirtd for managing virtualization on your hypervisor, but Red Hat recommends switching to the newly introduced modular libvirt daemons. For instructions and details, see the RHEL 9 Configuring and Managing Virtualization document.

Jira:RHELPLAN-113995^[1]

Performing SecureBoot image verification using SHA1-based signatures on UEFI (PE/COFF) executables has become deprecated. Instead, Red Hat recommends using signatures based on the SHA-2 algorithm, or later.

Jira:RHELPLAN-69533^[1]

The isa-fdc driver, which controls virtual floppy disk devices, is now deprecated, and will become unsupported in a future release of RHEL. Therefore, to ensure forward compatibility with migrated virtual machines (VMs), Red Hat discourages using floppy disk devices in VMs hosted on RHEL 9.8.

Jira:RHELPLAN-81033^[1]

With RHEL 9.8, the qcow2-v2 format for virtual disk images has become deprecated, and will become unsupported in a future major release of RHEL. In addition, the RHEL 9.8 Image Builder cannot create disk images in the qcow2-v2 format.

Instead of qcow2-v2, Red Hat strongly recommends using qcow2-v3. To convert a qcow2-v2 image to a later format version, use the qemu-img amend command.

Jira:RHELPLAN-75969^[1]

Running RHEL 9 containers on a RHEL 7 host is not supported. It might work, but it is not guaranteed.

For more information, see Red Hat Enterprise Linux Container Compatibility Matrix.

Jira:RHELPLAN-100087^[1]

The SHA1 algorithm used to generate the filename of the rootless network namespace is no longer supported in Podman. Therefore, rootless containers started before updating to Podman 4.1.1 or later have to be restarted if they are joined to a network (and not just using slirp4netns) to ensure they can connect to containers started after the upgrade.

Jira:RHELPLAN-117005^[1]

The rhel9/pause container image has been deprecated.

Jira:RHELPLAN-127619^[1]

Setting the TMPDIR environment variable in the /etc/rear/local.conf or /etc/rear/site.conf ReaR configuration file), by using a statement such as export TMPDIR=…​, is deprecated.

To specify a custom directory for ReaR temporary files, export the variable in the shell environment before executing ReaR. For example, execute the export TMPDIR=…​ statement and then execute the rear command in the same shell session or script.

Jira:RHELDOCS-18049^[1]

The Virtual Machine Manager application, also known as virt-manager, has been deprecated. The RHEL web console, also known as Cockpit, is intended to become its replacement in a subsequent release. It is, therefore, recommended that you use the web console for managing virtualization in a GUI. Note, however, that some features available in virt-manager might not be yet available in the RHEL web console.

Jira:RHELPLAN-10304^[1]