diff --git a/CHANGELOG.md b/CHANGELOG.md
index d3dba54..ac63e05 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,15 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [0.3.0] - 2023-10-01
+### Changed
+- Fix how to handle `OS/2`'s `usWeightClass` ([PR\#52](https://github.com/gfngfn/otfed/pull/52); breaking change).
+
+### Fixed
+- Fix how to decode Format 0 subtables of `kern` tables ([PR\#53](https://github.com/gfngfn/otfed/pull/53)).
+- Fix `Value.Cmap.Mapping.add_{incremental,constant}_range` about handling the maximum codepoint ([PR\#55](https://github.com/gfngfn/otfed/pull/55)).
+- Fix how to subset fonts and how to encode fractions ([PR\#57](https://github.com/gfngfn/otfed/pull/57)).
+
 ## [0.2.0] - 2023-06-27
 ### Changed
 - Rename `Hhea.t`'s `xmax_extent` to `x_max_extent` ([PR\#45](https://github.com/gfngfn/otfed/pull/45); breaking change).
@@ -29,6 +38,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/),
 - Initial version of Otfed
 
 
-  [Unreleased]: https://github.com/gfngfn/otfed/compare/0.2.0...HEAD
+  [Unreleased]: https://github.com/gfngfn/otfed/compare/0.3.0...HEAD
+  [0.3.0]: https://github.com/gfngfn/otfed/compare/0.2.0...0.3.0
   [0.2.0]: https://github.com/gfngfn/otfed/compare/0.1.0...0.2.0
   [0.1.0]: https://github.com/gfngfn/otfed/compare/0.0.1...0.1.0
diff --git a/dune-project b/dune-project
index f435131..034253f 100644
--- a/dune-project
+++ b/dune-project
@@ -1,6 +1,6 @@
 (lang dune 2.7)
 (name otfed)
-(version 0.2.0)
+(version 0.3.0)
 (authors "Takashi Suwa")
 (maintainers "Takashi Suwa")
 (license MIT)
diff --git a/otfed.opam b/otfed.opam
index 4481715..5b2b819 100644
--- a/otfed.opam
+++ b/otfed.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.2.0"
+version: "0.3.0"
 synopsis: "An OpenType encoder/decoder for OCaml"
 description: ""
 maintainer: ["Takashi Suwa"]