diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0bf29ec6..bcb0f09e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Now targets [Buildpack API 0.10](https://github.com/buildpacks/spec/releases/tag/buildpack%2Fv0.10). Buildpacks need to upgrade the `api` key to `0.10` in their `buildpack.toml`. ([#773](https://github.com/heroku/libcnb.rs/pull/773))
 - Improved the consistency of cross-compilation assistance provided across all supported `target_triple` and host OS/architecture combinations. [#769](https://github.com/heroku/libcnb.rs/pull/769)
 - Added cross-compilation assistance for `aarch64-unknown-linux-musl` (on macOS and ARM64 Linux) and `x86_64-unknown-linux-musl` (on ARM64 Linux). [#769](https://github.com/heroku/libcnb.rs/pull/769)
 - Raised Minimum Supported Rust Version (MSRV) to `1.76`. ([#774](https://github.com/heroku/libcnb.rs/pull/774))
@@ -22,6 +23,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `libherokubuildpack`:
   - `MappedWrite::unwrap` for getting the wrapped `Write` back out. ([#765](https://github.com/heroku/libcnb.rs/pull/765))
 
+### Removed
+
+- Types, errors, macros and functions related to stacks. The concept of stacks has been removed from the CNB spec. Use `Target` instead. ([#773](https://github.com/heroku/libcnb.rs/pull/773))
+
 ## [0.17.0] - 2023-12-06
 
 ### Added