diff --git a/build-args-4.23-10.2.conf b/build-args-4.23-10.2.conf
deleted file mode 100644
index 5eb6d6b1..00000000
--- a/build-args-4.23-10.2.conf
+++ /dev/null
@@ -1,23 +0,0 @@
-OPENSHIFT_VERSION=4.23
-IMAGE_FROM=registry.ci.openshift.org/coreos/rhel-coreos-base:10.2
-
-# The streamclass is based on the rhel/centos major version. The
-# io.openshift.os.streamclass label is used by the MCO to later
-# select the right image stream when multiple major versions coexist.
-STREAM_CLASS=rhel-10
-
-# Used by the generate-labels script
-IMAGE_NAME=openshift/ose-rhel-coreos-10
-IMAGE_CPE=cpe:/a:redhat:openshift:4.23::el10
-
-# The names of the yum repos to use for the node image build.
-YUM_REPO_NAMES=rhel-10.2-baseos,rhel-10.2-appstream,rhel-10.2-early-kernel,rhel-10.2-fast-datapath,rhel-10.2-server-ose-4.23
-
-# The extra yum repos (on top of the YUM_REPO_NAMES above) to use for
-# the extensions image build.
-#
-# - rhel-10.2-highavailability -> two-node-ha extension
-# - rhel-10.2-nfv -> kernel-rt extension (x86_64 only)
-#
-# All other extensions can be pulled from the list of yum repos above.
-EXTENSIONS_YUM_REPO_NAMES=rhel-10.2-highavailability,rhel-10.2-nfv
diff --git a/build-args-4.23-9.8.conf b/build-args-4.23-9.8.conf
deleted file mode 100644
index 3fb9d00f..00000000
--- a/build-args-4.23-9.8.conf
+++ /dev/null
@@ -1,23 +0,0 @@
-OPENSHIFT_VERSION=4.23
-IMAGE_FROM=registry.ci.openshift.org/coreos/rhel-coreos-base:9.8
-
-# The streamclass is based on the rhel/centos major version. The
-# io.openshift.os.streamclass label is used by the MCO to later
-# select the right image stream when multiple major versions coexist.
-STREAM_CLASS=rhel-9
-
-# Used by the generate-labels script
-IMAGE_NAME=openshift/ose-rhel-coreos-9
-IMAGE_CPE=cpe:/a:redhat:openshift:4.23::el9
-
-# The names of the yum repos to use for the node image build.
-YUM_REPO_NAMES=rhel-9.8-baseos,rhel-9.8-appstream,rhel-9.8-early-kernel,rhel-9.8-fast-datapath,rhel-9.8-server-ose-4.23
-
-# The extra yum repos (on top of the YUM_REPO_NAMES above) to use for
-# the extensions image build.
-#
-# - rhel-9.8-highavailability -> two-node-ha extension
-# - rhel-9.8-nfv -> kernel-rt extension (x86_64 only)
-#
-# All other extensions can be pulled from the list of yum repos above.
-EXTENSIONS_YUM_REPO_NAMES=rhel-9.8-highavailability,rhel-9.8-nfv
diff --git a/build-args-5.0-10.2.conf b/build-args-5.1-10.2.conf
similarity index 87%
rename from build-args-5.0-10.2.conf
rename to build-args-5.1-10.2.conf
index 2aebb710..80224dba 100644
--- a/build-args-5.0-10.2.conf
+++ b/build-args-5.1-10.2.conf
@@ -1,4 +1,4 @@
-OPENSHIFT_VERSION=5.0
+OPENSHIFT_VERSION=5.1
 IMAGE_FROM=registry.ci.openshift.org/coreos/rhel-coreos-base:10.2
 
 # The streamclass is based on the rhel/centos major version. The
@@ -8,10 +8,10 @@ STREAM_CLASS=rhel-10
 
 # Used by the generate-labels script
 IMAGE_NAME=openshift/ose-rhel-coreos-10
-IMAGE_CPE=cpe:/a:redhat:openshift:5.0::el10
+IMAGE_CPE=cpe:/a:redhat:openshift:5.1::el10
 
 # The names of the yum repos to use for the node image build.
-YUM_REPO_NAMES=rhel-10.2-baseos,rhel-10.2-appstream,rhel-10.2-early-kernel,rhel-10.2-fast-datapath,rhel-10.2-server-ose-5.0
+YUM_REPO_NAMES=rhel-10.2-baseos,rhel-10.2-appstream,rhel-10.2-early-kernel,rhel-10.2-fast-datapath,rhel-10.2-server-ose-5.1
 
 # The extra yum repos (on top of the YUM_REPO_NAMES above) to use for
 # the extensions image build.
diff --git a/build-args-5.0-9.8.conf b/build-args-5.1-9.8.conf
similarity index 87%
rename from build-args-5.0-9.8.conf
rename to build-args-5.1-9.8.conf
index 445b010f..fa522c86 100644
--- a/build-args-5.0-9.8.conf
+++ b/build-args-5.1-9.8.conf
@@ -1,4 +1,4 @@
-OPENSHIFT_VERSION=5.0
+OPENSHIFT_VERSION=5.1
 IMAGE_FROM=registry.ci.openshift.org/coreos/rhel-coreos-base:9.8
 
 # The streamclass is based on the rhel/centos major version. The
@@ -8,10 +8,10 @@ STREAM_CLASS=rhel-9
 
 # Used by the generate-labels script
 IMAGE_NAME=openshift/ose-rhel-coreos-9
-IMAGE_CPE=cpe:/a:redhat:openshift:5.0::el9
+IMAGE_CPE=cpe:/a:redhat:openshift:5.1::el9
 
 # The names of the yum repos to use for the node image build.
-YUM_REPO_NAMES=rhel-9.8-baseos,rhel-9.8-appstream,rhel-9.8-early-kernel,rhel-9.8-fast-datapath,rhel-9.8-server-ose-5.0
+YUM_REPO_NAMES=rhel-9.8-baseos,rhel-9.8-appstream,rhel-9.8-early-kernel,rhel-9.8-fast-datapath,rhel-9.8-server-ose-5.1
 
 # The extra yum repos (on top of the YUM_REPO_NAMES above) to use for
 # the extensions image build.
diff --git a/build-args-5.0-c10s.conf b/build-args-5.1-c10s.conf
similarity index 95%
rename from build-args-5.0-c10s.conf
rename to build-args-5.1-c10s.conf
index 188849db..580e4e43 100644
--- a/build-args-5.0-c10s.conf
+++ b/build-args-5.1-c10s.conf
@@ -1,4 +1,4 @@
-OPENSHIFT_VERSION=5.0
+OPENSHIFT_VERSION=5.1
 IMAGE_FROM=registry.ci.openshift.org/coreos/stream-coreos-base:10
 
 # The streamclass is based on the rhel/centos major version. The
@@ -17,7 +17,7 @@ STREAM_CLASS=centos-10
 # XXX: use of the rhel-*server-ose-* ART repo shouldn't happen for OKD; see related XXX
 #      in build-node-image.sh. Also we must put the ART repo last for the modification
 #      in the script to work.
-YUM_REPO_NAMES=c10s-baseos,c10s-appstream,c10s-sig-nfv,c10s-sig-cloud-okd,rhel-10.2-server-ose-5.0
+YUM_REPO_NAMES=c10s-baseos,c10s-appstream,c10s-sig-nfv,c10s-sig-cloud-okd,rhel-10.2-server-ose-5.1
 
 # The extra yum repos (on top of the YUM_REPO_NAMES above) to use for
 # the extensions image build.
diff --git a/c10s.repo b/c10s.repo
index 964a581b..9d9d34e5 100644
--- a/c10s.repo
+++ b/c10s.repo
@@ -55,8 +55,8 @@ enabled=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Virtualization
 
 [c10s-sig-cloud-okd]
-name=CentOS Stream 10 - SIG Cloud OKD 5.0
-baseurl=https://mirror.stream.centos.org/SIGs/10-stream/cloud/$basearch/okd-5.0/
+name=CentOS Stream 10 - SIG Cloud OKD 5.1
+baseurl=https://mirror.stream.centos.org/SIGs/10-stream/cloud/$basearch/okd-5.1/
 gpgcheck=1
 repo_gpgcheck=0
 enabled=1
diff --git a/ci/get-ocp-repo.sh b/ci/get-ocp-repo.sh
index 0dc53db8..09b6cf8a 100755
--- a/ci/get-ocp-repo.sh
+++ b/ci/get-ocp-repo.sh
@@ -7,8 +7,8 @@ set -euo pipefail
 
 urls=(
     # theoretically that's the only one we need
-    "http://base-5-0-rhel98.ocp.svc.cluster.local"
-    "http://base-5-0-rhel102.ocp.svc.cluster.local"
+    "http://base-5-1-rhel102.ocp.svc.cluster.local"
+    "http://base-5-1-rhel98.ocp.svc.cluster.local"
 )
 
 dest=$1; shift
diff --git a/docs/building.md b/docs/building.md
index 97c6794f..27f1bef1 100644
--- a/docs/building.md
+++ b/docs/building.md
@@ -30,28 +30,28 @@ SCOS or RHCOS image (see building instructions in
 Each variant has a `build-args-*.conf` file that specifies the base image
 and metadata for that build. Choose the appropriate one for your target:
 
-- `build-args-5.0-9.8.conf` — RHCOS on RHEL 9.8
-- `build-args-5.0-10.2.conf` — RHCOS on RHEL 10.2
-- `build-args-5.0-c10s.conf` — SCOS on CentOS Stream 10
+- `build-args-5.1-10.2.conf` — RHCOS on RHEL 10.2
+- `build-args-5.1-9.8.conf` — RHCOS on RHEL 9.8
+- `build-args-5.1-c10s.conf` — SCOS on CentOS Stream 10
 
 To build:
 
 ```
-podman build --build-arg-file build-args-5.0-c10s.conf \
+podman build --build-arg-file build-args-5.1-c10s.conf \
   --secret id=yumrepos,src=/path/to/all.repo \
   -v /etc/pki/ca-trust:/etc/pki/ca-trust:ro \
-  --security-opt label=disable -t localhost/stream-coreos:5.0 .
+  --security-opt label=disable -t localhost/stream-coreos:5.1 .
 ```
 
 To override the base image (e.g. to use a locally built OCI archive),
 pass `--from`:
 
 ```
-podman build --build-arg-file build-args-5.0-c10s.conf \
+podman build --build-arg-file build-args-5.1-c10s.conf \
   --from oci-archive:$(ls builds/latest/x86_64/*.ociarchive) \
   --secret id=yumrepos,src=/path/to/all.repo \
   -v /etc/pki/ca-trust:/etc/pki/ca-trust:ro \
-  --security-opt label=disable -t localhost/stream-coreos:5.0 .
+  --security-opt label=disable -t localhost/stream-coreos:5.1 .
 ```
 
 ## Building Extensions Image
@@ -59,20 +59,20 @@ podman build --build-arg-file build-args-5.0-c10s.conf \
 Similar to the above, but use the extensions Containerfile instead:
 
 ```
-podman build --build-arg-file build-args-5.0-c10s.conf \
+podman build --build-arg-file build-args-5.1-c10s.conf \
   --secret id=yumrepos,src=/path/to/all.repo \
   -v /etc/pki/ca-trust:/etc/pki/ca-trust:ro \
-  --security-opt label=disable -t localhost/stream-coreos-extensions:5.0 \
+  --security-opt label=disable -t localhost/stream-coreos-extensions:5.1 \
   -f extensions/Containerfile .
 ```
 
 Overriding the node image as input:
 
 ```
-podman build --build-arg-file build-args-5.0-c10s.conf \
-  --from localhost/stream-coreos:5.0 \
+podman build --build-arg-file build-args-5.1-c10s.conf \
+  --from localhost/stream-coreos:5.1 \
   --secret id=yumrepos,src=/path/to/all.repo \
   -v /etc/pki/ca-trust:/etc/pki/ca-trust:ro \
-  --security-opt label=disable -t localhost/stream-coreos-extensions:5.0 \
+  --security-opt label=disable -t localhost/stream-coreos-extensions:5.1 \
   -f extensions/Containerfile .
 ```
diff --git a/docs/faq.md b/docs/faq.md
index 92c6a6cb..d6a21b94 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -142,7 +142,9 @@ RHCOS/OCP version | RHEL version
 4.20 | 9.6 EUS
 4.21 | 9.6 EUS
 4.22 | 9.8 EUS and 10.2 EUS
-5.0 | 9.8 EUS and 10.2 EUS
+4.23 | 9.8 EUS and 10.2 EUS
+5.0 | 10.2 EUS and 9.8 EUS
+5.1 | 10.2 EUS and 9.8 EUS
 
 ## Q: How do I determine what version of an RPM is included in an RHCOS release?