diff --git a/inventory/group_vars/all.yaml b/inventory/group_vars/all.yaml
index 075397a..74f5451 100644
--- a/inventory/group_vars/all.yaml
+++ b/inventory/group_vars/all.yaml
@@ -277,7 +277,7 @@ orcaslicer_appimage:
   nightly: false
 
   # Stable only: "latest" (default) or a specific version like "2.3.2"
-  version: 2.3.2
+  version: 2.4.2
 
   # If true and OrcaSlicer is already installed, wipe install_dir and reinstall.
   force_reinstall: false
diff --git a/roles/orcaslicer/defaults/main.yaml b/roles/orcaslicer/defaults/main.yaml
index 9cfe491..b71fa1d 100644
--- a/roles/orcaslicer/defaults/main.yaml
+++ b/roles/orcaslicer/defaults/main.yaml
@@ -6,7 +6,7 @@ orcaslicer_appimage:
   nightly: false
 
   # Stable only: "latest" (default) or a specific version like "2.3.2"
-  version: 2.3.2
+  version: 2.4.2
 
   # If true and OrcaSlicer is already installed, wipe install_dir and reinstall.
   force_reinstall: false
diff --git a/roles/orcaslicer/tasks/main.yaml b/roles/orcaslicer/tasks/main.yaml
index 17f1053..5702493 100644
--- a/roles/orcaslicer/tasks/main.yaml
+++ b/roles/orcaslicer/tasks/main.yaml
@@ -221,6 +221,17 @@
 # -------------------------
 # Asset selection (both)
 # -------------------------
+- name: "OrcaSlicer | Compute AppImage arch match regex"
+  ansible.builtin.set_fact:
+    _orcaslicer_ai_arch_regex: >-
+      {{
+        'aarch64'
+        if ansible_architecture in ['aarch64', 'arm64']
+        else '^(?!.*(?:aarch64|arm64)).*'
+      }}
+  when: _orcaslicer_ai_do_install
+  changed_when: false
+
 - name: "OrcaSlicer | Pick AppImage asset from release"
   ansible.builtin.set_fact:
     _orcaslicer_ai_asset: >-
@@ -229,6 +240,8 @@
           _orcaslicer_release_assets
           | selectattr('name', 'search', '\.AppImage$')
           | selectattr('name', 'search', orcaslicer_appimage.distro_tag)
+          | rejectattr('name', 'search', '_belt')
+          | selectattr('name', 'search', _orcaslicer_ai_arch_regex)
           | list
           | first
         ) | default({})
diff --git a/roles/orcaslicer/templates/orcaslicer.desktop.j2 b/roles/orcaslicer/templates/orcaslicer.desktop.j2
index 79ae2c8..6577542 100644
--- a/roles/orcaslicer/templates/orcaslicer.desktop.j2
+++ b/roles/orcaslicer/templates/orcaslicer.desktop.j2
@@ -5,7 +5,7 @@ TryExec={{ orcaslicer_appimage.install_dir }}/bin/orca-slicer
 Terminal=false
 Type=Application
 Icon=orcaslicer
-StartupWMClass=OrcaSlicer
+StartupWMClass=orca-slicer
 Comment=OrcaSlicer 3D printing slicer
 Categories=Graphics;3DGraphics;
 MimeType=model/3mf;model/stl;