Update CHANGELOG.md

CHANGELOG.md

@@ -5,6 +5,50 @@ 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).
 
+## In Development
+
+- Exporting CompositeSurfaces
+
+## Upcoming - [3.16.0]
+
+CityDoctor now supports the import, export and validation of CityGML 3.0 files.
+
+
+#### CityGML Object parsing
+
+- CityDoctor is now capable of parsing and validating the following CityGML objects:
+
+    - Tunnel, TunnelParts, TunnelHollows and TunnelInstallations
+    - BuildingRooms, BuildingFurniture, BuildingStoreys and BuildingUnits
+    - BridgeRooms and BridgeFurniture
+    - CityFurniture
+    - GenericCityObjects
+
+- CityDoctor is now capable of resolving BoundarySurfaces containing CompositeSurfaces
+- CityDoctor now supports Objects using ImplicitGeometries.
+
+
+- Data from CityDoctor's internal model will now be exported to the same CityGML version as
+the input file, rather than always exporting it to CityGML 2.0.
+
+#### CityDoctorGUI
+
+- The GUI was adjusted to accommodate displaying the newly added CityGML object-types.
+
+
+- QoL improvements:
+  - Added a north arrow to the mesh view.
+  - The camera of the mesh view can now be dragged by holding the right mouse button.
+  - Added a button to reset the camera view back to the initial state.
+  - Added a button to toggle showing of roofs in the object view.
+  - Feature-tabs will now be greyed out if they contain no objects.
+
+
+
+### Fixed
+
+- Fixed a TreeNode text color bug, which showed unchecked objects as being already validated.
+- Fixed an oversight in the CityGML version number parsing
 
 
 ## [3.15.0] (2024-09-03)