Merge pull request #88872 from AedinC/OSDOCS-13388

OSDOCS-13388:Added info about 4.18 to MOS What's new sections

Author: bmcelvee

osd_whats_new/osd-whats-new.adoc

@@ -18,6 +18,8 @@ With its foundation in Kubernetes, {product-title} is a complete {OCP} cluster p
 [id="osd-q1-2025_{context}"]
 === Q1 2025
 
+* **New version of {product-title} available.** {product-title} on {gcp} and {product-title} on {aws} versions 4.18 are now available. For more information about upgrading to this latest version, see xref:../upgrading/osd-upgrades.adoc#osd-upgrades[Red Hat OpenShift Dedicated cluster upgrades].
+
 * **Cluster node limit update.** {product-title} clusters versions 4.14.14 and greater can now scale to 249 worker nodes. This is an increase from the previous limit of 180 nodes. For more information, see xref:../osd_planning/osd-limits-scalability.adoc#osd-limits-scalability[limits and scalability].
 // * **{product-title} SDN network plugin blocks future major upgrades**
 * **Initiate live migration from OpenShift SDN to OVN-Kubernetes.**

rosa_release_notes/rosa-release-notes.adoc

@@ -16,6 +16,13 @@ toc::[]
 [id="rosa-q1-2025_{context}"]
 === Q1 2025
 
+ifdef::openshift-rosa[]
+* **New version of {product-title} available.** {product-title} version 4.18 is now available. For more information about upgrading to this latest version, see xref:../upgrading/rosa-upgrading-sts.adoc#rosa-upgrading-sts[Upgrading ROSA (classic architecture) clusters].
+endif::openshift-rosa[]
+
+//remove from rosa distro once HCP split occurs.
+* **New version of {hcp-title} available.** {hcp-title} version 4.18 is now available. For more information about upgrading to this latest version, see xref:../upgrading/rosa-hcp-upgrading.adoc#rosa-hcp-upgrading[Upgrading ROSA with HCP clusters].
+
 ifndef::openshift-rosa-hcp[]
 * **Image configuration is now available for {hcp-title}.** You can configure registries within a cluster to exclude some registries or allow only a defined list. It also allows to expose additional trusted bundle for registries to pull from. For more information, see xref:../openshift_images/image-configuration-hcp.adoc#images-configuration-parameters-hcp_image-configuration-hcp[Image configuration resources for {hcp-title}].
 endif::openshift-rosa-hcp[]