diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5e2c0c..07b61d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.4.3] - 2019-10-28
 ### Added
 - rav1e codec support (encode-only)
 - `rav1e.cmd` and `dav1d.cmd` to ext
@@ -204,7 +206,8 @@
 - Constants `AVIF_VERSION`, `AVIF_VERSION_MAJOR`, `AVIF_VERSION_MINOR`, `AVIF_VERSION_PATCH`
 - `avifVersion()` function
 
-[Unreleased]: https://github.com/AOMediaCodec/libavif/compare/v0.4.2...HEAD
+[Unreleased]: https://github.com/AOMediaCodec/libavif/compare/v0.4.3...HEAD
+[0.4.3]: https://github.com/AOMediaCodec/libavif/compare/v0.4.2...v0.4.3
 [0.4.2]: https://github.com/AOMediaCodec/libavif/compare/v0.4.1...v0.4.2
 [0.4.1]: https://github.com/AOMediaCodec/libavif/compare/v0.4.0...v0.4.1
 [0.4.0]: https://github.com/AOMediaCodec/libavif/compare/v0.3.11...v0.4.0
diff --git a/include/avif/avif.h b/include/avif/avif.h
index 29cd4a3..3ad0d85 100644
--- a/include/avif/avif.h
+++ b/include/avif/avif.h
@@ -16,7 +16,7 @@
 
 #define AVIF_VERSION_MAJOR 0
 #define AVIF_VERSION_MINOR 4
-#define AVIF_VERSION_PATCH 2
+#define AVIF_VERSION_PATCH 3
 #define AVIF_VERSION (AVIF_VERSION_MAJOR * 10000) + (AVIF_VERSION_MINOR * 100) + AVIF_VERSION_PATCH
 
 typedef int avifBool;