OSDOCS-9610 HCP node limit to 500 workers

Author: xJustin

rosa_architecture/rosa_policy_service_definition/rosa-hcp-instance-types.adoc

@@ -24,7 +24,7 @@ include::modules/rosa-sdpolicy-am-aws-compute-types-graviton.adoc[leveloffset=+1
 
 [NOTE]
 ====
-Currently, {hcp-title} supports a maximum of 90 worker nodes.
+Currently, {hcp-title} supports a maximum of 180 worker nodes.
 ====
 
 [role="_additional-resources"]

rosa_release_notes/rosa-release-notes.adoc

@@ -16,6 +16,8 @@ toc::[]
 [id="rosa-q3-2024_{context}"]
 === Q3 2024
 
+* **{hcp-title} cluster node limit update.** {hcp-title} clusters can now scale to 180 worker nodes. This is an increase from the previous limit of 90 nodes. For more information, see xref:../rosa_planning/rosa-limits-scalability.html[Limits and scalability].
+
 * **IMDSv2 support in {hcp-title}.** You can now enforce the use of the IMDSv2 endpoint for default machine pool worker nodes on new {hcp-title} clusters and for new machine pools on existing clusters. For more information, see xref:../rosa_hcp/terraform/rosa-hcp-creating-a-cluster-quickly-terraform.adoc#rosa-hcp-creating-a-cluster-quickly-terraform[Creating a default ROSA cluster using Terraform].
 
 * **Upgrade multiple nodes simultaneously.** You can now configure a machine pool to upgrade multiple nodes simultaneously. Two new machine pool parameters, `max-surge` and `max-unavailable`, give you greater control over how machine pool upgrades occur. For more information, see xref:../upgrading/rosa-hcp-upgrading.adoc#rosa-hcp-upgrading[Upgrading ROSA with HCP clusters].