diff --git a/CHANGELOG.md b/CHANGELOG.md
index acd70ddf..99137b85 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [0.9.0] - 2023-10-03
+### Changed
+- The `Advice` struct was split into two enums: `Advice` and `UncheckedAdvice`.<br>
+  `Advice` can be passed to safe `advise` and `advise_range` methods.
+  And `UncheckedAdvice` can be passed to unsafe `unchecked_advise`
+  and `unchecked_advise_range` methods.<br>
+  [@adamreichold](https://github.com/adamreichold)
+
 ## [0.8.0] - 2023-09-25
 ### Changed
 - The `Advice` type is a struct and not an enum now.
@@ -174,7 +182,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Removed
 - `winapi` dependency. [memmap-rs/pull/89](https://github.com/danburkert/memmap-rs/pull/89)
 
-[Unreleased]: https://github.com/RazrFalcon/memmap2-rs/compare/v0.8.0...HEAD
+[Unreleased]: https://github.com/RazrFalcon/memmap2-rs/compare/v0.9.0...HEAD
+[0.9.0]: https://github.com/RazrFalcon/memmap2-rs/compare/v0.8.0...v0.9.0
 [0.8.0]: https://github.com/RazrFalcon/memmap2-rs/compare/v0.7.1...v0.8.0
 [0.7.1]: https://github.com/RazrFalcon/memmap2-rs/compare/v0.7.0...v0.7.1
 [0.7.0]: https://github.com/RazrFalcon/memmap2-rs/compare/v0.6.2...v0.7.0
diff --git a/Cargo.toml b/Cargo.toml
index 4a878ce6..db7d3ed6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "memmap2"
-version = "0.8.0"
+version = "0.9.0"
 authors = ["Dan Burkert <dan@danburkert.com>", "Yevhenii Reizner <razrfalcon@gmail.com>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/RazrFalcon/memmap2-rs"