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-rw-r--r--java/AndroidManifest.xml.in15
-rw-r--r--java/incrementing-version-code0
2 files changed, 15 insertions, 0 deletions
diff --git a/java/AndroidManifest.xml.in b/java/AndroidManifest.xml.in
index c066d91011a..66b26e65088 100644
--- a/java/AndroidManifest.xml.in
+++ b/java/AndroidManifest.xml.in
@@ -338,3 +338,18 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. -->
android:label="GNU Emacs service"/>
</application>
</manifest>
+
+<!-- Auto-incrementing version code.
+
+This comment contains an Android version code
+(https://developer.android.com/studio/publish/versioning#versioningsettings)
+corresponding to the current Emacs version. The version code in
+AndroidManifest.xml.in is hard-coded to a fixed value to facilitate
+package downgrades. Some automated systems employed by Android package
+repositories require an incrementing numeric version code to detect
+upgrades, which is provided here and is altered by admin/admin.el.
+Refer to e.g. https://forum.f-droid.org/t/emacs-packaging/30424/25.
+
+Version-code: 300050000
+
+-->
diff --git a/java/incrementing-version-code b/java/incrementing-version-code
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/java/incrementing-version-code