Update 3.11.5 release notes

release-notes/3.11.5.md

@@ -33,6 +33,18 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
 
    GitHub issue: [#5831](https://github.com/rabbitmq/rabbitmq-server/pull/5831)
 
+ * If `handle.exe` is not available, free disk space monitor will now shell out to PowerShell
+   to retrieve the number of open file handles used by the node.
+
+   GitHub issue: [#6613](https://github.com/rabbitmq/rabbitmq-server/issues/6613)
+
+ * `raft.adaptive_failure_detector.poll_interval` exposes [`aten`]()'s `poll_interval` setting to
+   RabbitMQ users. Increasing it can reduce the probability of false positives in clusters where
+   inter-node communication links are used at close to maximum capacity.
+   The default is `5000` (5 seconds).
+
+   GitHub issue: [#6632](https://github.com/rabbitmq/rabbitmq-server/pull/6632)
+
  * When both `disk_free_limit.relative` and `disk_free_limit.absolute`,
    or both `vm_memory_high_watermark.relative` and `vm_memory_high_watermark.absolute` are set,
    the absolute settings will now take precedence.
@@ -51,6 +63,11 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
 
    GitHub issue: [#6590](https://github.com/rabbitmq/rabbitmq-server/pull/6590)
 
+ * Default queue type (a virtual host setting) is now applied when importing definitions
+   into a single virtual host.
+
+   GitHub issue: [#6599](https://github.com/rabbitmq/rabbitmq-server/pull/6599)
+
 #### Bug Fixes
 
  * Feature flags provided by plugins were mistakingly disabled after node restart.
@@ -108,6 +125,13 @@ Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://
 
    GitHub issue: [#6600](https://github.com/rabbitmq/rabbitmq-server/pull/6600)
 
+ * New HTTP API endpoint, `GET /api/config/effective`, returns effective node configuration.
+   This is an HTTP API counterpart of `rabbitmq-diagnostics environment`.
+
+   Contributed by @SimonUnge (AWS).
+
+   GitHub issue: [#6016](https://github.com/rabbitmq/rabbitmq-server/issues/6016)
+
 ### Shovel Plugin
 
 #### Enhancements