docs: update release notes for runtime 1.4.3 (#294)

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Co-authored-by: Johan Andrén <[email protected]>

Author: efgpinto

docs/src/modules/reference/pages/release-notes.adoc

@@ -27,7 +27,21 @@ xref:java:consuming-producing.adoc#s2s-eventing[Service to service eventing] is
 
 xref:concepts:multi-region.adoc[Request-region primary selection mode]: The primary region changes when another region receives a write request. Upon a write request to an entity in a region that is not the primary it will move its primary. The new primary ensures that all preceding events from the previous primary have been fully replicated and applied (i.e. persisted) before writing the new event, and thereby guarantees strong consistency when switching from one region to another. Subsequent write requests to the primary region of the entity are handled locally without any further coordination. Write requests to other regions will trigger the same switch-over process. All other entity instances operate unimpeded during the switch-over process.
 
+**Automatic deduplication for view updates**
+
+When subscribing to entities and service to service eventing, from a view, updates are now guaranteed to be processed exactly-once. This is not applicable when subscribing to topics. Additionally, a new section describing different xref:java:dev-best-practices.adoc#message-deduplication[message deduplication] strategies has been added to the best practices guide.
+
+
 ****
+* Akka Runtime 1.4.3
+    - automatic deduplication of views updates
+    - improvements for use of reserved words in view queries
+    - support for endpoint custom object mapper
+    - support for query parameters in HTTP requests
+
+* Akka Runtime 1.2.11, 1.2.12
+    - automatic deduplication of views updates
+    - improvements for use of reserved words in view queries
 
 * https://github.com/akka/akka-sdk/releases/tag/v3.2.1[Akka SDK 3.2.1]
     - make it possible to filter message by region origin, see xref:java:consuming-producing.adoc#_multi_region_replication[Consumer documentation]