diff --git a/.gitea/workflows/build-app-preview.yml b/.gitea/workflows/build-app-preview.yml
index 9a28500..6d6339c 100644
--- a/.gitea/workflows/build-app-preview.yml
+++ b/.gitea/workflows/build-app-preview.yml
@@ -54,7 +54,21 @@ jobs:
         run: |
           MAJOR_MINOR=$(cat VERSION | tr -d '[:space:]')
           SHORT_SHA=$(git rev-parse --short HEAD)
-          VERSION="${MAJOR_MINOR}.0-preview.${SHORT_SHA}"
+
+          # The patch number is computed exactly as build-app.yml does it, so a
+          # preview is labelled with the version the release it previews would
+          # carry. This used to be hard-coded `.0`, which made every preview
+          # installer claim to be x.y.0 no matter what it contained.
+          LATEST_TAG=$(git tag -l "v${MAJOR_MINOR}.*" --sort=-v:refname | grep -E "^v${MAJOR_MINOR}\.[0-9]+$" | head -1 || true)
+          if [ -n "$LATEST_TAG" ]; then
+            PATCH=$(git rev-list --count "${LATEST_TAG}..HEAD")
+            echo "Latest matching tag: ${LATEST_TAG} (+${PATCH} commits)"
+          else
+            echo "No v${MAJOR_MINOR}.* tag yet — starting this line at .0"
+            PATCH=0
+          fi
+
+          VERSION="${MAJOR_MINOR}.${PATCH}-preview.${SHORT_SHA}"
           echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
           echo "Computed preview version: ${VERSION}"
 
diff --git a/.gitea/workflows/build-app.yml b/.gitea/workflows/build-app.yml
index 56ffaee..273569c 100644
--- a/.gitea/workflows/build-app.yml
+++ b/.gitea/workflows/build-app.yml
@@ -47,8 +47,12 @@ jobs:
             echo "Latest matching tag: ${LATEST_TAG}"
             PATCH=$(git rev-list --count "${LATEST_TAG}..HEAD")
           else
-            echo "No matching tag found for v${MAJOR_MINOR}.*, using total commit count"
-            PATCH=$(git rev-list --count HEAD)
+            # A minor line nobody has tagged yet is a *new* line, and a new line
+            # starts at .0 — that is what "we are moving to 0.4.x" means. The
+            # old fallback here counted every commit in the repository, which
+            # would have made the first 0.4 build 0.4.234.
+            echo "No v${MAJOR_MINOR}.* tag yet — starting this line at .0"
+            PATCH=0
           fi
 
           VERSION="${MAJOR_MINOR}.${PATCH}"
diff --git a/VERSION b/VERSION
index 1d71ef9..e6adf3f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3
\ No newline at end of file
+0.4
\ No newline at end of file
diff --git a/app/package-lock.json b/app/package-lock.json
index 4a3a24e..b35ded4 100644
--- a/app/package-lock.json
+++ b/app/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "triple-c",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "triple-c",
-      "version": "0.3.0",
+      "version": "0.4.0",
       "dependencies": {
         "@tauri-apps/api": "^2",
         "@tauri-apps/plugin-dialog": "^2.7.0",
diff --git a/app/package.json b/app/package.json
index cf64567..3c02859 100644
--- a/app/package.json
+++ b/app/package.json
@@ -1,7 +1,7 @@
 {
   "name": "triple-c",
   "private": true,
-  "version": "0.3.0",
+  "version": "0.4.0",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/app/src-tauri/Cargo.lock b/app/src-tauri/Cargo.lock
index 087d3f6..7efb86a 100644
--- a/app/src-tauri/Cargo.lock
+++ b/app/src-tauri/Cargo.lock
@@ -5163,7 +5163,7 @@ dependencies = [
 
 [[package]]
 name = "triple-c"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "axum",
  "base64 0.22.1",
diff --git a/app/src-tauri/Cargo.toml b/app/src-tauri/Cargo.toml
index 52cff6f..67f1ea7 100644
--- a/app/src-tauri/Cargo.toml
+++ b/app/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "triple-c"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 
 [lib]
diff --git a/app/src-tauri/tauri.conf.json b/app/src-tauri/tauri.conf.json
index e6094b3..1b98dc9 100644
--- a/app/src-tauri/tauri.conf.json
+++ b/app/src-tauri/tauri.conf.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://raw.githubusercontent.com/tauri-apps/tauri/dev/crates/tauri-cli/schema.json",
   "productName": "Triple-C",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "identifier": "com.triple-c.desktop",
   "build": {
     "beforeDevCommand": "npm run dev",