diff --git a/CHANGELOG.md b/CHANGELOG.md
index 991c49f..f7f9c31 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.31] - 2026-06-04
+
+**Maintenance release — Velopack auto-update runtime refresh.** Updates the bundled Velopack updater `1.0.1` → `1.2.0` and folds in the post-v1.0.30 self-configuring smoke harness and documentation accuracy sweep. No change to the image-build logic or the ISO it produces — only the launcher executable and its updater runtime change. Ships unsigned (Trusted Signing deferred to v1.1.0); existing installs auto-update to this build.
+
 ### Changed
 
 - **Smoke harness (`tests/smoke/`) is now self-configuring.** `verify-p8.ps1` and `verify-p9.ps1` derive each catalog item's keep-vs-remove expectation from the build's own baked `tiny11-cleanup.ps1` (the generator emits an action only for apply-state items), instead of requiring operator-supplied keep-list flags — a forgotten flag previously produced a misleading FAIL on a kept-item build. Verified offline against an extracted real baked script + a synthetic quote-boundary test.
diff --git a/launcher/app.manifest b/launcher/app.manifest
index 3f28234..9066d18 100644
--- a/launcher/app.manifest
+++ b/launcher/app.manifest
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
-  <assemblyIdentity version="1.0.30.0" name="tiny11options"/>
+  <assemblyIdentity version="1.0.31.0" name="tiny11options"/>
 
   <application xmlns="urn:schemas-microsoft-com:asm.v3">
     <windowsSettings>
diff --git a/launcher/tiny11options.Launcher.csproj b/launcher/tiny11options.Launcher.csproj
index f006148..342aec7 100644
--- a/launcher/tiny11options.Launcher.csproj
+++ b/launcher/tiny11options.Launcher.csproj
@@ -9,7 +9,7 @@
          AppVersion.Current() -> window.__appVersion (see MainWindow.xaml.cs
          injection block). Bumping <Version> automatically updates the UI
          display — no manual sync step. -->
-    <Version>1.0.30</Version>
+    <Version>1.0.31</Version>
     <OutputType>WinExe</OutputType>
     <TargetFramework>net10.0-windows</TargetFramework>
     <UseWPF>true</UseWPF>