Clean up releaseNotes/CHANGELOG and 'make generate'

Signed-off-by: Flynn <[email protected]>

CHANGELOG.md

@@ -107,7 +107,8 @@ it will be removed; but as it won't be user-visible this isn't considered a brea
   instead of the Mapping name, which could reduce the cache's effectiveness. This has been fixed so
   that the correct key is used. ([Incorrect Cache Key for Mapping])
 
-- Change: Updated Emissary-Ingress to use EndpointSlices instead of Endpoints to support more than 1000 Backends
+- Feature: Emissary-ingress now supports resolving Endpoints from EndpointSlices in addition to the
+  existing support for Endpoints, supporting Services with more than 1000 endpoints.
 
 [Incorrect Cache Key for Mapping]: https://github.com/emissary-ingress/emissary/issues/5714
 

docs/releaseNotes.yml

@@ -68,6 +68,13 @@ items:
           - title: "Incorrect Cache Key for Mapping"
             link: https://github.com/emissary-ingress/emissary/issues/5714
 
+      - title: Add support for EndpointSlices to the Endpoints resolver
+        type: feature
+        body: >-
+          $productName$ now supports resolving Endpoints from EndpointSlices
+          in addition to the existing support for Endpoints, supporting Services
+          with more than 1000 endpoints.
+
   - version: 3.9.0
     prevVersion: 3.8.0
     date: '2023-11-13'