diff --git a/.appveyor.yml b/.appveyor.yml
index 998b010..aeca693 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -1,4 +1,4 @@
-version: '0.4.1-rev{build}'
+version: '0.4.2-rev{build}'
 clone_depth: 5
 environment:
   TARGET: x86_64-pc-windows-msvc
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99ba8ee..c202847 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,24 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
-[Unreleased]: https://github.com/fastobo/fastobo-py/compare/v0.4.1...HEAD
+[Unreleased]: https://github.com/fastobo/fastobo-py/compare/v0.4.2...HEAD
+
+
+## [v0.4.2] - 2019-09-16
+
+[v0.4.2]: https://github.com/fastobo/fastobo-py/compare/v0.4.1...v0.4.2
+
+### Added
+- Getters for `IsClassLevelClause` and `IsMetadataTag` in `fastobo.typedef`
+- Getters for `RelationshipClause` in `fastobo.term`
+
+### Changed
+- Inconsistent naming for `PropertyValueClause` between `fastobo.header`
+  and other submodules.
+
+### Fixed
+- Bug with `fastobo.header.ImportClause.reference` returning the whole clause
+  serialization instead.
 
 
 ## [v0.4.1] - 2019-09-15
diff --git a/Cargo.lock b/Cargo.lock
index b5afc15..8e9f398 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -196,12 +196,12 @@ dependencies = [
 
 [[package]]
 name = "fastobo-py"
-version = "0.4.1"
+version = "0.4.2"
 dependencies = [
  "built 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fastobo 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fastobo-graphs 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "fastobo-py-derive-internal 0.4.1",
+ "fastobo-py-derive-internal 0.4.2",
  "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
  "opaque_typedef 0.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "opaque_typedef_macros 0.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -213,7 +213,7 @@ dependencies = [
 
 [[package]]
 name = "fastobo-py-derive-internal"
-version = "0.4.1"
+version = "0.4.2"
 dependencies = [
  "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 6fd4be9..aa5da98 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ members = ["derive"]
 
 [package]
 name = "fastobo-py"
-version = "0.4.1"
+version = "0.4.2"
 authors = ["Martin Larralde <martin.larralde@ens-paris-saclay.fr>"]
 publish = false
 build = "src/build.rs"
diff --git a/derive/Cargo.toml b/derive/Cargo.toml
index 31b94b5..a214816 100644
--- a/derive/Cargo.toml
+++ b/derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fastobo-py-derive-internal"
-version = "0.4.1"
+version = "0.4.2"
 authors = ["Martin Larralde <martin.larralde@ens-cachan.fr>"]
 edition = "2018"
 publish = false
diff --git a/setup.cfg b/setup.cfg
index ef05a50..55dae23 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = fastobo
-version = 0.4.1
+version = 0.4.2
 author = Martin Larralde
 author-email = martin.larralde@ens-paris-saclay.fr
 home-page = https://github.com/fastobo/fastobo-py