diff --git a/HSRename.AppImage b/HSRename.AppImage
index 8a74b04..dd9f575 100755
Binary files a/HSRename.AppImage and b/HSRename.AppImage differ
diff --git a/README.md b/README.md
index eea6f5c..55584f6 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ A **native Linux** GUI for mass renaming files. Inspired by [Bulk Rename Utility
 - **GUI** – Structure renames with rule panels; no command line needed.
 - **Preview** – See “Original → New name” for every file before committing.
 - **Multiple rules** – Combine rules (order: Replace → Regex → Insert → Remove → Case → Numbering → Episode renumber → Prefix/Suffix). Enable only the rules you need.
-- **Episode renumbering** – Replace episode numbers (e.g. `S01E05 - Title` → `S01E01 - Title`) while keeping season and title. Start number and zero-padding configurable.
+- **Episode renumbering** – Replace episode numbers (e.g. `S01E05 - Title` → `S01E01 - Title`) while keeping season and title. Multi-episode files like `S01E05-E06` become `S01E01-E02` (range length preserved). Start, step, and zero-padding configurable.
 - **Replace / Regex** – Plain text find/replace or full regex with capture groups.
 - **Insert / Remove** – Insert text at start/end/position; remove text, digits, or first/last N characters.
 - **Case** – Title Case, UPPER, lower, Sentence case.
@@ -62,6 +62,10 @@ Sort order is the current list order (alphabetical by filename). Reorder files i
 3. Enable **9. CSV mapping**, click **Browse…** and select the CSV.
 4. Only rows that match a current filename in the folder are renamed; others are unchanged. You can combine with other rules (CSV is applied in rule order).
 
+## Gear Lever (AppImage updates)
+
+To have [Gear Lever](https://github.com/mijorus/gearlever) see new releases when we push them and update the AppImage from there, see **[docs/GEARLEVER.md](docs/GEARLEVER.md)** for configuration (custom update URL for Gitea, or static URL).
+
 ## AppImage (distribution)
 
 To build a portable AppImage:
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..6d7de6e
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+1.0.2
diff --git a/build_appimage.sh b/build_appimage.sh
index 675abba..00d55ed 100755
--- a/build_appimage.sh
+++ b/build_appimage.sh
@@ -54,9 +54,17 @@ else
 fi
 
 echo "=== Building AppImage (requires appimagetool) ==="
+# Optional: set VERSION when building for release so update info is embedded (for Gear Lever etc.)
+# e.g. VERSION=v1.0.1 ./build_appimage.sh
+GITEA_RELEASES="http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases"
+UPDATE_INFO=""
+if [[ -n "${VERSION:-}" ]]; then
+  UPDATE_INFO="-u url|${GITEA_RELEASES}/download/${VERSION}/HSRename.AppImage"
+fi
 if command -v appimagetool &>/dev/null; then
   OUT="${APP_NAME}.AppImage"
-  appimagetool "$APPDIR" "$OUT"
+  # shellcheck disable=SC2086
+  appimagetool $UPDATE_INFO "$APPDIR" "$OUT"
   echo "Done: $OUT"
 else
   echo "AppDir is ready at $APPDIR/"
diff --git a/docs/GEARLEVER.md b/docs/GEARLEVER.md
new file mode 100644
index 0000000..104cf44
--- /dev/null
+++ b/docs/GEARLEVER.md
@@ -0,0 +1,58 @@
+# Using HSRename with Gear Lever
+
+[Gear Lever](https://github.com/mijorus/gearlever) can manage and update the HSRename AppImage. Because releases are hosted on **Gitea** (not GitHub), use one of the options below.
+
+## Option 1: Custom update URL (recommended to try first)
+
+Gitea uses the same release path style as GitHub:  
+`/owner/repo/releases/download/{tag}/{filename}`
+
+1. Open **Gear Lever** and add the HSRename AppImage (drag & drop or **Add**).
+2. Select the HSRename entry and open **Update** / **Custom update URL** (or the equivalent in your Gear Lever version).
+3. Try this URL pattern (with a wildcard for the tag):
+   ```
+   http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases/download/*/HSRename.AppImage
+   ```
+4. If Gear Lever accepts it (e.g. field turns green or validates), it may use the Gitea releases page to resolve the latest tag and offer updates when you push new releases.
+5. Use **Check for updates** / **List updates** to see if it detects new versions.
+
+If your Gear Lever only supports GitHub-style URLs and rejects this, use Option 2.
+
+## Option 2: Static URL (manual update link)
+
+If the wildcard URL does not work:
+
+1. In Gear Lever, add HSRename and set **Update** to **Static URL**.
+2. Paste the **direct download URL** of the current release, for example:
+   - **v1.0.1:**  
+     `http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases/download/v1.0.1/HSRename.AppImage`
+3. When a new version is released (e.g. v1.0.2), open the [releases page](http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases), open the new release, right‑click **HSRename.AppImage** → **Copy link address**, then in Gear Lever set the Static URL to that new link and run **Update**.
+
+So: Gear Lever will only “see” updates if you change the Static URL to the new release’s download link when you want to update.
+
+## Option 3: CLI (if you use Gear Lever from the terminal)
+
+After adding the AppImage in Gear Lever, you can set the update URL from the command line:
+
+```bash
+# Set custom update URL (try the wildcard pattern)
+gearlever --set-update-url /path/to/HSRename.AppImage "http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases/download/*/HSRename.AppImage"
+
+# Check for updates
+gearlever --list-updates
+
+# Apply update
+gearlever --update /path/to/HSRename.AppImage
+```
+
+Replace `/path/to/HSRename.AppImage` with the actual path where Gear Lever stores the AppImage.
+
+## Release download URL pattern
+
+For any release tag `vX.Y.Z`, the direct download URL is:
+
+```
+http://brassnet.ddns.net:33983/Dawnsorrow/HS-Rename/releases/download/vX.Y.Z/HSRename.AppImage
+```
+
+So when we push a new release (e.g. v1.0.2), that new tag’s URL is what Gear Lever needs (either via the wildcard in Option 1 or by pasting the new URL in Option 2).
diff --git a/engine/rules.py b/engine/rules.py
index c69710f..5056cd4 100644
--- a/engine/rules.py
+++ b/engine/rules.py
@@ -201,14 +201,14 @@ class NumberingRule(Rule):
         return stem, ext
 
 
-# Episode renumber: match SxxExx or similar, replace episode number only, keep title
+# Episode renumber: match SxxExx or SxxExx-Eyy, replace episode block; keep title
 @dataclass
 class EpisodeRenumberRule(Rule):
     start: int = 1
     step: int = 1
     padding: int = 2
-    # Pattern: group 1 = prefix (e.g. "S01E"), group 2 = episode digits, group 3 = rest (title)
-    pattern: str = r"(.*?[Ss]\d+[Ee])(\d+)(.*)"
+    # Group 1 = prefix (e.g. "S01E"), 2 = first ep digits, 3 = full "-E06" or None, 4 = second ep if range, 5 = rest (title)
+    pattern: str = r"(.*?[Ss]\d+[Ee])(\d+)(-[Ee](\d+))?(.*)"
 
     def apply(
         self,
@@ -224,10 +224,36 @@ class EpisodeRenumberRule(Rule):
             return stem, ext
         if not m:
             return stem, ext
-        prefix, _old_ep, rest = m.group(1), m.group(2), m.group(3)
-        ep_num = self.start + index * self.step
-        ep_str = str(ep_num).zfill(max(1, self.padding))
-        new_stem = f"{prefix}{ep_str}{rest}"
+        prefix, old_first_s, range_dash_e, old_second_s, rest = (
+            m.group(1),
+            m.group(2),
+            m.group(3),
+            m.group(4),
+            m.group(5),
+        )
+        try:
+            old_first = int(old_first_s)
+        except ValueError:
+            return stem, ext
+        span = 1
+        if old_second_s is not None:
+            try:
+                old_second = int(old_second_s)
+            except ValueError:
+                return stem, ext
+            span = old_second - old_first + 1
+            if span < 1:
+                span = 1
+        ep_new_first = self.start + index * self.step
+        pad = max(1, self.padding)
+        e1 = str(ep_new_first).zfill(pad)
+        if span <= 1:
+            new_stem = f"{prefix}{e1}{rest}"
+        else:
+            ep_new_last = ep_new_first + span - 1
+            e2 = str(ep_new_last).zfill(pad)
+            # Match common style: S01E01-E02 (second block uses E again)
+            new_stem = f"{prefix}{e1}-E{e2}{rest}"
         return new_stem, ext
 
 
diff --git a/gui/rule_widgets.py b/gui/rule_widgets.py
index 1c13f09..cbfd317 100644
--- a/gui/rule_widgets.py
+++ b/gui/rule_widgets.py
@@ -285,7 +285,10 @@ class EpisodeRenumberRuleWidget(QWidget):
         layout.addRow("First episode number:", self.start)
         layout.addRow("Step:", self.step)
         layout.addRow("Zero-pad width:", self.padding)
-        info = QLabel("Matches patterns like S01E05 - Title or Show 1x03 - Title. Episode number is replaced; title is kept.")
+        info = QLabel(
+            "Matches S01E05 - Title (single) or S01E05-E06 - Title (two-part). "
+            "Ranges keep their length: S01E01-E02, S01E03-E04, … Order follows the file list / table sort."
+        )
         info.setWordWrap(True)
         layout.addRow(info)