User Guide: Update release-notes.md

docs/release-notes.md

@@ -3,6 +3,14 @@
 !!! note ""
     You can test [**upcoming features and enhancements**](https://link.photoprism.app/roadmap) by changing the image tag from `:latest` to `:preview` and then following [our update guide](getting-started/updates.md#development-preview) to download the newest image from [Docker Hub](https://hub.docker.com/r/photoprism/photoprism/tags) and restart your instance.
 
+### Development Preview ###
+<span class="build">Build 231023-ef1a92ab8</span>
+
+What's new?
+
+- PWA: [Fixed size of the 76px icon in the app manifest](https://github.com/photoprism/photoprism/pull/3838)
+- Search: [Improved cards view camera and lens details](https://github.com/photoprism/photoprism/issues/3816)
+
 ### October 21, 2023 ###
 <span class="build">Build 231021-9abea5b55</span>