diff --git a/net.sourceforge.atanks.appdata.xml b/net.sourceforge.atanks.appdata.xml
index 02038af..3581ad5 100644
--- a/net.sourceforge.atanks.appdata.xml
+++ b/net.sourceforge.atanks.appdata.xml
@@ -4,8 +4,8 @@
 BugReportURL: jessefrgsmith@yahoo.ca
 SentUpstream: 2014-09-17
 -->
-<application>
-  <id type="desktop">atanks.desktop</id>
+<component type="desktop-application">
+  <id>atanks.desktop</id>
   <name>Atomic Tanks</name>
   <metadata_license>CC0-1.0</metadata_license>
   <summary>Turn-based artillery strategy game</summary>
@@ -17,11 +17,24 @@ SentUpstream: 2014-09-17
       landscapes, teleporting, parachutes and different weather conditions.
     </p>
   </description>
-  <url type="homepage">http://atanks.sourceforge.net/index.html</url>
+  <developer_name>The Atomic Tanks Developers</developer_name>
+  <url type="homepage">https://atanks.sourceforge.net/index.html</url>
+  <launchable type="desktop-id">net.sourceforge.atanks.desktop</launchable>
   <screenshots>
-    <screenshot type="default">http://atanks.sourceforge.net/Screenshots/scrnshot29.png</screenshot>
+    <screenshot type="default">
+      <image>https://atanks.sourceforge.net/Screenshots/scrnshot29.png</image>
+    </screenshot>
   </screenshots>
   <releases>
+    <release version="6.6" date="2021-11-08">
+      <description>
+        <p>This is a major new release of Atomic Tanks, the first in five years!
+          Several improvements have been made and adjusted with regards to AI aiming.
+          We also fixed some crashes, cleaned up some of the building process.</p>
+        <p>A new Theft Bomb item has been added, so check out that in the inventory.
+          Also AI tanks now start with a basic amount of fuel to help them move about.</p>
+      </description>
+    </release>
     <release version="6.5" date="2016-11-02"/>
   </releases>
     <content_rating type="oars-1.1">
@@ -31,4 +44,4 @@ SentUpstream: 2014-09-17
   <!-- FIXME: change this to an upstream email address for spec updates
   <updatecontact>someone_who_cares@upstream_project.org</updatecontact>
    -->
-</application>
+</component>
diff --git a/net.sourceforge.atanks.json b/net.sourceforge.atanks.json
index 3c00b9b..2e5c3a8 100644
--- a/net.sourceforge.atanks.json
+++ b/net.sourceforge.atanks.json
@@ -1,7 +1,7 @@
 {
     "app-id": "net.sourceforge.atanks",
     "runtime": "org.freedesktop.Platform",
-    "runtime-version": "20.08",
+    "runtime-version": "23.08",
     "sdk": "org.freedesktop.Sdk",
     "finish-args": [
         "--device=dri",
@@ -15,7 +15,8 @@
         "/lib/pkgconfig",
         "/share/aclocal",
         "/share/man",
-        "*.la", "*.a"
+        "*.la",
+        "*.a"
     ],
     "rename-desktop-file": "atanks.desktop",
     "rename-icon": "atanks",
@@ -53,8 +54,8 @@
             "sources": [
                 {
                     "type": "archive",
-                    "url": "https://downloads.sourceforge.net/project/atanks/atanks/atanks-6.5/atanks-6.5.tar.gz",
-                    "sha256": "32182b2752a77ff362c378fc04b7c51fc15345caa4c8deaad59cc850dad2322e"
+                    "url": "https://sourceforge.net/projects/atanks/files/atanks/atanks-6.6/atanks-6.6.tar.gz",
+                    "sha256": "bc6b1efc9fc7e7624fad1d8352d72e927be0fba2160bb25bb6b8bd6c6370bf43"
                 },
                 {
                     "type": "file",
diff --git a/shared-modules b/shared-modules
index 769d287..1673277 160000
--- a/shared-modules
+++ b/shared-modules
@@ -1 +1 @@
-Subproject commit 769d287b1a65f8b128570be11ec4626dcc608210
+Subproject commit 16732779e792bcc3f60b8db2c909a1ab540a93a6