diff --git a/CHANGELOG.md b/CHANGELOG.md
index afb3401..401e966 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,23 @@
 All notable changes to MarkReader are documented in this file.
 Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [1.0.3] - 2026-08-21
+
+### Added
+- Bundled a sans reading font for better on-screen readability.
+- Reading progress bar with a percentage badge in the viewer.
+- A tappable Rendered/Raw mode pill and a dedicated reader surface-flip button.
+- Auto-hiding viewer chrome on scroll and an animated search transition.
+- Overhauled search UX: auto-focus, debounced highlighting, jump-to-first-match, and rounded text-hugging match highlights.
+
+### Improved
+- Reworked the reader screen with rounded icons, haptic feedback on controls, a restyled table-of-contents sheet, and an expressive export bottom sheet.
+- Updated GitHub Actions CI dependencies.
+
+### Fixed
+- Stopped scroll stutter on upward scroll and preserved the scroll anchor across line-wrap toggles.
+- Hardened file open, read, and save paths: safer error handling, bounded reads with BOM stripping, shared-text handling via cache file, and more reliable persistable URI grants.
+
 ## [1.0.2] - 2026-08-02
 
 ### Added
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index e305683..470be24 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -32,8 +32,8 @@ android {
         applicationId = "com.markreader"
         minSdk = 24
         targetSdk = 35
-        versionCode = 3
-        versionName = "1.0.2"
+        versionCode = 4
+        versionName = "1.0.3"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/fastlane/metadata/android/en-US/changelogs/4.txt b/fastlane/metadata/android/en-US/changelogs/4.txt
new file mode 100644
index 0000000..092048b
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/4.txt
@@ -0,0 +1,5 @@
+• Added a bundled sans reading font and a reading progress bar.
+• Reworked the reader: new search, raw-mode toggle, haptics, and an export sheet.
+• Added a reader surface-flip button and auto-hiding chrome on scroll.
+• Fixed scroll stutter and preserved position when toggling line wrap.
+• Hardened file open, read, and save handling.
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