diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f1c2324..1e81771b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,13 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [4.0.0] = TBC
+## [4.0.0] = 2025-03-XX
 
 ### Added
--   Log observation space data by episode and step.
 -   Added `show_history` method to Agents, allowing you to view actions taken by an agent per step. By default, `do-nothing` actions are omitted.
 -  New ``node-send-local-command`` action implemented which grants agents the ability to execute commands locally. (Previously limited to remote only)
 -  Added ability to set the observation threshold for NMNE, file access and application executions
+-   UC7 Scenario model changes plus config files and example notebooks. 
 
 ### Changed
 -   Agents now follow a common configuration format, simplifying the configuration of agents and their extensibilty.
@@ -29,26 +29,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 -   Nodes now use a config schema and are extensible, allowing for plugin support.
 -   Node tests have been updated to use the new node config schemas when not using YAML files.
 -   Documentation has been updated to include details of extensability with PrimAITE.
--   ACLs are no longer applied to layer-2 traffic.
--   Random number seed values are recorded in simulation/seed.log if the seed is set in the config file
-    or `generate_seed_value` is set to `true`.
--   ARP .show() method will now include the port number associated with each entry.
--   Added `services_requires_scan` and `applications_requires_scan` to agent observation space config to allow the agents to be able to see actual health states of services and applications without requiring scans (Default `True`, set to `False` to allow agents to see actual health state without scanning).
--   Updated the `Terminal` class to provide response information when sending remote command execution.
-
 ### Fixed
 -   DNS client no longer fails to check its cache if a DNS server address is missing.
 -   DNS client now correctly inherits the node's DNS address configuration setting.
 
 
-## [3.3.0] - 2024-09-04
-
-## [3.4.0]
+## [3.3.1] - 2024-12-04
 
 ### Added
 -   Log observation space data by episode and step.
--   Added `show_history` method to Agents, allowing you to view actions taken by an agent per step. By default, `DONOTHING` actions are omitted.
--  New ``NODE_SEND_LOCAL_COMMAND`` action implemented which grants agents the ability to execute commands locally. (Previously limited to remote only)
 -  Added ability to set the observation threshold for NMNE, file access and application executions
 
 ### Changed
@@ -56,7 +45,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 -   Random number seed values are recorded in simulation/seed.log if the seed is set in the config file
     or `generate_seed_value` is set to `true`.
 -   ARP .show() method will now include the port number associated with each entry.
--   Added `services_requires_scan` and `applications_requires_scan` to agent observation space config to allow the agents to be able to see actual health states of services and applications without requiring scans (Default `True`, set to `False` to allow agents to see actual health state without scanning).
+-   Added `services_requires_scan` and `applications_requires_scan` to agent observation space config to allow the agents to be able to see actual health states of services and applications without requiring scans (default `True`, set to `False` to allow agents to see actual health state without scanning).
 -   Updated the `Terminal` class to provide response information when sending remote command execution.
 
 ## [3.3.0] - 2024-09-04