diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51abed01..69e9dd8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [v0.5.5] - 2020-05-04
+
+### Added
+
+- Added `HistoryBuffer`
+- Added extra methods to `Vec`: `from_slice`, `starts_with`, `ends_with`
+- Optional `ufmt` support for `String` and `Vec`
+- Added `pool` support for bare-metal `armebv7r-` targets
+- Added Sync to `pool` for `x86`
+
 ## [v0.5.4] - 2020-04-06
 
 ### Added
@@ -294,7 +304,8 @@ architecture.
 
 - Initial release
 
-[Unreleased]: https://github.com/japaric/heapless/compare/v0.5.4...HEAD
+[Unreleased]: https://github.com/japaric/heapless/compare/v0.5.5...HEAD
+[v0.5.5]: https://github.com/japaric/heapless/compare/v0.5.4...v0.5.5
 [v0.5.4]: https://github.com/japaric/heapless/compare/v0.5.3...v0.5.4
 [v0.5.3]: https://github.com/japaric/heapless/compare/v0.5.2...v0.5.3
 [v0.5.2]: https://github.com/japaric/heapless/compare/v0.5.1...v0.5.2
diff --git a/Cargo.toml b/Cargo.toml
index 73be0c7e..0b2bbdb6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ keywords = [
 license = "MIT OR Apache-2.0"
 name = "heapless"
 repository = "https://github.com/japaric/heapless"
-version = "0.5.4"
+version = "0.5.5"
 
 [features]
 default = ["cas"]