diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..c4d2ec5
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,12 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project does adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+
+## [0.9.0] – 2025-12-04
+Initial release
+
+
+[0.9.0]: https://github.com/relikd/QLMarkdown/compare/f8545f5c77ec74030ea556833ff4b51cdfb75bce...v0.9.0
diff --git a/QLMarkdown.xcodeproj/project.pbxproj b/QLMarkdown.xcodeproj/project.pbxproj
index b05ec17..073d2dc 100644
--- a/QLMarkdown.xcodeproj/project.pbxproj
+++ b/QLMarkdown.xcodeproj/project.pbxproj
@@ -62,6 +62,7 @@
 		54C508BA2EE0D40A00E5C1A3 /* Preview.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Preview.entitlements; sourceTree = "<group>"; };
 		54C508DA2EE0ED4200E5C1A3 /* empty.txt */ = {isa = PBXFileReference; lastKnownFileType = text; path = empty.txt; sourceTree = "<group>"; };
 		54C508FE2EE1C16D00E5C1A3 /* AppIcon.icns */ = {isa = PBXFileReference; lastKnownFileType = image.icns; path = AppIcon.icns; sourceTree = "<group>"; };
+		54C509042EE1DA3400E5C1A3 /* CHANGELOG.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = CHANGELOG.md; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -90,6 +91,7 @@
 				5496881C2EE0AB4E00FB282A /* Config.xcconfig */,
 				5496881D2EE0AB4E00FB282A /* Config-debug.xcconfig */,
 				549688392EE0AFC500FB282A /* README.md */,
+				54C509042EE1DA3400E5C1A3 /* CHANGELOG.md */,
 				54C509012EE1C16D00E5C1A3 /* resources */,
 				5496883E2EE0B0B700FB282A /* App */,
 				549688462EE0B0BA00FB282A /* QLPreview */,