Add changelogs

Signed-off-by: Alexander Dahmen <[email protected]>

Author: Fyusel

CHANGELOG.md

@@ -1,9 +1,16 @@
 ## Release (2025-xx-xx)
-- `core`: [v0.3.0](core/CHANGELOG.md#v030)
-  - **Feature:** New exception types for better error handling
-    - `AuthenticationException`: New exception for authentication-related failures (token generation, refresh, validation)
-- `resourcemanager`: [v0.3.0](services/resourcemanager/CHANGELOG.md#v030)
-  - **Feature:** Add `ContainerSearchResult` model class for container search functionality
+- `core`:
+  - [v0.4.0](core/CHANGELOG.md#v040)
+    - **Feature:** Added core wait handler structure which can be used by every service waiter implementation.
+  - [v0.3.0](core/CHANGELOG.md#v030)
+    - **Feature:** New exception types for better error handling
+      - `AuthenticationException`: New exception for authentication-related failures (token generation, refresh, validation)
+- `resourcemanager`: 
+  - [v0.4.0](services/resourcemanager/CHANGELOG.md#v040)
+    - **Feature:** Added waiter for project creation and project deletion
+  - [v0.3.0](services/resourcemanager/CHANGELOG.md#v030)
+    - **Feature:** Add `ContainerSearchResult` model class for container search functionality
+
 
 ## Release (2025-09-30)
 - `core`: [v0.2.0](core/CHANGELOG.md#v020)

CONTRIBUTION.md

@@ -49,7 +49,7 @@ Waiters are routines that wait for the completion of asynchronous operations. Th
 Let's suppose you want to implement the waiters for the `Create`, `Update` and `Delete` operations of a resource `bar` of service `foo`:
 
 1. Start by creating a new Java package `cloud.stackit.sdk.<service>.wait` inside `services/foo/` project, if it doesn't exist yet
-2. Create a file `FooWait.java` inside your new Java package `cloud.stackit.sdk.resourcemanager.wait`, if it doesn't exist yet. The class should be named `FooWait`.
+2. Create a file `FooWait.java` inside your new Java package `cloud.stackit.sdk.<service>.wait`, if it doesn't exist yet. The class should be named `FooWait`.
 3. Refer to the [Waiter structure](./CONTRIBUTION.md/#waiter-structure) section for details on the structure of the file and the methods
 4. Add unit tests to the wait functions
 

core/VERSION

@@ -1 +1 @@
-0.3.0
+0.4.0

services/resourcemanager/CHANGELOG.md

@@ -1,3 +1,6 @@
+## v0.4.0
+- **Feature:** Added waiter for project creation and project deletion
+
 ## v0.3.0
 - **Feature:** Add `ContainerSearchResult` model class for container search functionality
 

services/resourcemanager/VERSION

@@ -1 +1 @@
-0.3.0
+0.4.0