Release 4.0

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.5.0
+current_version = 4.0.0
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)((?P<release>a|b|rc)(?P<build>\d+))?
 serialize = 
 	{major}.{minor}.{patch}{release}{build}

docs/source/release_notes/index.md

@@ -4,6 +4,13 @@
 :hidden:
 :maxdepth: 2
 
+```
+## Version 4.0
+
+```{toctree}
+:maxdepth: 1
+
+v4.0.0
 ```
 ## Version 3.0
 

docs/source/release_notes/v4.0.0.md

@@ -0,0 +1,18 @@
+# Version 4.0.0 ( June 2026)
+
+## What's new in 4.0.0
+
+- CUDA 13 is now used by default so CUDA version dependent packages have been updated accordingly.
+- [Holoscan SDK](https://pypi.org/project/holoscan) and [Holoscan CLI](https://pypi.org/project/holoscan-cli/), the key dependencies if this SDK, are now pinned below version 4.3.0. This is because of the following reasons
+  - Holoscan SDK version 4.2 provides all core functionalities to support this SDK.
+  - MAP packaging support is [deprecated](https://github.com/nvidia-holoscan/holoscan-cli#deprecations) starting from Holoscan CLI version 4.3.0.
+- More robust decoding of compressed images with nvImageCodec due to the use of improved GPU-accelerated libraries in the CUDA 13 toolkit.
+
+Please also see the <a href="https://github.com/Project-MONAI/monai-deploy-app-sdk/issues?q=is%3Aissue+is%3Aclosed">closed issues on Github</a> and the <a href="https://github.com/Project-MONAI/monai-deploy-app-sdk/pulls?q=is%3Apr+is%3Aclosed">closed pull requests on Github</a>.
+
+## Additional information
+Please visit [GETTING STARTED](/getting_started/index) guide and follow the tutorials.
+
+You can learn more about SDK usage through [DEVELOPING WITH SDK](/developing_with_sdk/index).
+
+Please let us know how you like it and what could be improved by [submitting an issue](https://github.com/Project-MONAI/monai-deploy-app-sdk/issues/new/choose) or [asking questions](https://github.com/Project-MONAI/monai-deploy-app-sdk/discussions).