Initial 0.4.0 entry.

RELEASE_NOTES.md

@@ -1,5 +1,32 @@
 # Camera Traps Release Notes
 
+## Version 0.4.0
+This major release expands the camera-traps application with several new capabilities:
+
+1. New Oracle plugin for collecting ground truth data
+  * This plugin utilizes data about the image labels as well as events generated by all of the 
+    other plugins to create a "image_mapping_final.json" file that can be used to evaluate the performance of individual plugins as well as the overall performance of the application. 
+
+2. Incorporation of new CNK daemon for gathering performance data.
+  * This program runs as a standalone process (a separate container) and sends performance data to the cloud 
+    via a Kafka broker. 
+  * It gathers data from the image_mapping_final.json file generated by the Oracle plugin. 
+
+3. Several enhancements to the Image Scoring Plugin:
+  * Added support for streaming data from a zip archive file
+  * Added support for dynamically configuring the ML model; plugin will fetch the model (pt) files at 
+    start up, as needed, from the URL specified by the CKN Model Graph API.
+
+4. Overhaul of the existing Power Monitoring Plugin
+  * Support was added for the [Power Joular backend](https://github.com/joular/powerjoular), a production-grade power monitoring tool written in Ada. This mitigates any concerns with the lack of maintenance of Scaphandre, which appears to be abandoned. 
+  * The code for the plugin was completely rewritten to simplify maintenance and improve modularity and extensibility so that adding support for additional tools would be easier. 
+
+5. New installer command-line program to facilitate installations with a high degree of customization. 
+
+6. Complete integration test suite for end-to-end testing of the Camera Traps application (maintained in a separate repo).
+  This test suite is triggered by GitHub actions. 
+
+
 ## Version 0.3.3
 
 1. Implementation of power monitoring plugin for x86 and ARM architectures.