diff --git a/Changelog.md b/Changelog.md
index 2b407a0436e14488c4cf6b86d951b3e5a11919e6..daee09d530c185ac1e6c18c4b762d6eb10554311 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -25,7 +25,58 @@ Some of the logged changes might apply to Features that will be unlocked in the
 </details>
 -->
 
-#### Planned Release for 09.09.2024
+#### Planned Release for 09.10.2024
+<!-- Sprint 2024-19 -->
+<details>
+  <summary>Details</summary>
+
+  ##### General
+  Master Version 20.5
+  - update to new Master Version
+  - Improved Regapp interface
+  - backend implementation for new feature: Change person's mail address
+
+  ##### Applications
+  - WestAI applications for JSC defautl start date changed to current day (was first day of next month)
+  - all Coscine applications:
+      - field for metadata profiles is now required
+      - added question: is research data subject to Art.9 GDPR?
+      - fixed a bug where PI and PC were not filled out correctly when copying coscine application
+
+  ##### Reviews
+  - Improved checking the chosen projectID for conflicts during approval
+      - compare PI/PC with the persons associated with the given projectID in .project
+      - account for the possiblity of the previous PI/PC changing roles
+
+  ##### API
+  - Added documentation to all endpoints that can give out messages in the [status] part of the response
+
+</details>
+
+#### Planned Release for 02.10.2024
+<!-- Sprint 2024 17-19, alle Änderungen aus dem AC-Units Branch -->
+<details>
+  <summary>Details</summary>
+
+  ##### General
+  Master Version 20.2
+  Deploy Changes from Test Phase:
+  - All NHR centers now use "k GPU-h" as the unit for requesting GPU-Resources
+  - All applications on the RWTH Server (including WestAI for RWTH and JSC) now use "kGPU-h" as the unit for requesting GPU-Resources
+  - Adjusted all existing GPU resources for current and past applications and projects, if the unit was not already in kGPU-h
+
+  ##### Applications
+  - NHR4CES applications offer a conversion for GPU resources between "mio. core-h" and "k GPU-h" for better usability, the applied unit is "k GPU-h"
+
+  ##### Reviews
+  - for NHR4CES applications, the review pages display GPU resources as both "mio. core-h" and "k GPU-h" for better usability. The applied unit is "k GPU-h"
+
+  ##### Hotfixes released during the last cycle
+  - Fixed a bug that would leave hybrid applications in an unclear state after conditional approval without resource amounts.
+
+</details>
+
+#### Release from 09.09.2024
 <!-- Sprint 2024-17 -->
 <details>
   <summary>Details</summary>