diff --git a/CHANGELOG.md b/CHANGELOG.md
index faefa236..628f5686 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -81,6 +81,7 @@ Changes to pipeline caches:
 Changes to `Swapchain`:
 - Swapchain creation no longer returns an error when the swapchain extent doesn't match the current surface extent. This requirement is ill-defined in the spec, as detailed here: [TOCTOU race condition on minImageExtent/maxImageExtent?](https://github.com/KhronosGroup/Vulkan-Docs/issues/1144).
 - Renamed `acquire_full_screen_exclusive` and `release_full_screen_exclusive` to `acquire_full_screen_exclusive_mode` and `release_full_screen_exclusive_mode` to match the Vulkan names.
+- `acquire_next_image` and `wait_for_present` now return `Validated<VulkanError>` as their error type.
 
 Changes to samplers:
 - The `sampler` module is now a submodule of `image`.
@@ -104,6 +105,9 @@ Changes to synchronization primitives:
 Changes to queries:
 - `Query` and `QueriesRange` are removed. The `get_results` method is moved to `QueryPool` directly.
 
+Changes to futures:
+- `FlushError` is replaced with `Validated<VulkanError>`.
+
 ### Additions
 
 - Vulkano-shaders: Added a `root_path_env` property to allow loading shaders generated by a build script.