Merge pull request #2659 from brushknight/develop

Infrastructure agent 1.18.1 release notes

src/content/docs/release-notes/infrastructure-release-notes/infrastructure-agent-release-notes/new-relic-infrastructure-agent-1181.mdx

@@ -0,0 +1,23 @@
+---
+subject: Infrastructure agent
+releaseDate: '2021-06-11'
+version: 1.18.1
+---
+
+## Notes
+A new version of the agent has been released. Follow standard procedures to [update the Infrastructure agent](https://docs.newrelic.com/docs/infrastructure/install-configure-manage-infrastructure/update-or-uninstall/update-infrastructure-agent).  
+New Relic recommends that you upgrade the agent regularly and at a minimum every 3 months.
+
+## Added
+- Added the following new host memory metrics (see [documentation](https://docs.newrelic.com/attribute-dictionary/?attribute_name=&events_tids%5B%5D=8407&event=SystemSample)):
+    - memoryCachedBytes
+    - memorySharedBytes
+    - memorySlabBytes
+- Agent self instrumentation [#477](https://github.com/newrelic/infrastructure-agent/pull/477)
+    - This is a base implementation of a prometheus endpoint to gather some metrics about agent runtime and a few product metrics. 
+    - In order to work, agent opens a port with prom data and starts nri-prometheus integration to scrap prom endpoint and send data to the backend.
+- Status API [#475](https://github.com/newrelic/infrastructure-agent/pull/475). See [docs](https://github.com/newrelic/infrastructure-agent/blob/master/docs/status_api.md)
+
+## Changed
+- Upgraded `nri-prometheus` to v2.7.0 [#517](https://github.com/newrelic/infrastructure-agent/pull/517)
+- Updates Winlog.yml Sample [#336](https://github.com/newrelic/infrastructure-agent/pull/336)