diff --git a/app/k9mail/build.gradle b/app/k9mail/build.gradle
index cde74c44d77..ba958c449f4 100644
--- a/app/k9mail/build.gradle
+++ b/app/k9mail/build.gradle
@@ -53,8 +53,8 @@ android {
         applicationId "com.fsck.k9"
         testApplicationId "com.fsck.k9.tests"
 
-        versionCode 35002
-        versionName '6.503-SNAPSHOT'
+        versionCode 35003
+        versionName '6.503'
 
         // Keep in sync with the resource string array 'supported_languages'
         resConfigs "in", "br", "ca", "cs", "cy", "da", "de", "et", "en", "en_GB", "es", "eo", "eu", "fr", "gd", "gl",
diff --git a/app/ui/legacy/src/main/res/raw/changelog_master.xml b/app/ui/legacy/src/main/res/raw/changelog_master.xml
index 3c93a611edf..b214c4f362d 100644
--- a/app/ui/legacy/src/main/res/raw/changelog_master.xml
+++ b/app/ui/legacy/src/main/res/raw/changelog_master.xml
@@ -5,6 +5,13 @@
      Locale-specific versions are kept in res/raw-<locale qualifier>/changelog.xml.
 -->
 <changelog>
+    <release version="6.503" versioncode="35003" date="2023-01-19">
+        <change>Tweaked theme colors</change>
+        <change>Added support for HTML messages using the &lt;base> tag and relative links</change>
+        <change>Fixed the logic to skip the trash folder when deleting messages, e.g. when deleting spam</change>
+        <change>Fixed bug that could lead to messages not being marked as read on the server when they should have been</change>
+        <change>Internal changes</change>
+    </release>
     <release version="6.502" versioncode="35002" date="2023-01-16">
         <change>Fixed crash at app startup</change>
     </release>
diff --git a/fastlane/metadata/android/en-US/changelogs/35003.txt b/fastlane/metadata/android/en-US/changelogs/35003.txt
new file mode 100644
index 00000000000..92056f363d9
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/35003.txt
@@ -0,0 +1,5 @@
+- Tweaked theme colors
+- Added support for HTML messages using the <base> tag and relative links
+- Fixed the logic to skip the trash folder when deleting messages, e.g. when deleting spam
+- Fixed bug that could lead to messages not being marked as read on the server when they should have been
+- Internal changes