diff --git a/README.md b/README.md
index 40221d0..3817a3b 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,10 @@ A very lightweight wrapper around Vulkan
 ## Stable yet?
 I don't expect any big changes anymore. The library will still remain < 1.0 until I had time to use it in a real project. If you encounter any problems, feel free to open an [Issue](https://github.com/MaikKlein/ash/issues).
 
+## Breaking changes:
+- 0.16.4 -> 0.17.0: `map_memory` now returns a void ptr. `ash::util::Align` is a helper struct that
+can write to aligned memory.
+
 ## Why Ash?
 - [x] Lightweight Vulkan wrapper
 - [x] Low overhead