PMM-12574 (#3067)

* Update 2.43.0.md

* formatting

* Update 2.43.0.md

docs/release-notes/2.43.0.md

@@ -14,6 +14,13 @@ This release introduces this and that
 
 ## Release highlights
 
+### Official ARM support for PMM Client
+With the growing adoption of ARM in data centers and cloud environments, we are excited to announce official support for ARM architecture in PMM Clients. This enables you to seamlessly monitor ARM-based infrastructure, including popular cloud instances and emerging ARM-powered servers.
+
+Starting with version 2.43, PMM now includes pre-built binaries for ARM architecture. With this update, PMM Client features, such as `node_exporter` and `mysqld_exporter`, are fully supported and optimized for ARM platforms. Additionally, ARM-based PMM Clients seamlessly integrate with existing PMM Server installations, enabling unified monitoring across both x86 and ARM architectures.
+
+#### Upgrading and getting started
+If you have been compiling PMM on ARM manually, you can now upgrade to the 2.43 release for official support. The [Set up PMM Client topic](../setting-up/client/index.md) now also includes ARM-specific instructions for new installations.
 
 ### New MongoDB collector: CurrentOp
 
@@ -33,6 +40,7 @@ Specifying a limit with `--max-collections` for this collector is not necessary.
 For more information on MongoDB collectors and metrics, see the [pmm-admin commands documentation](../use/commamds/pmm-admin.md).
 
 
+
 ## Improvements
 
 - [PMM-13133](https://perconadev.atlassian.net/browse/PMM-13133) -