Package: file Version: 1:5.29-2 Severity: important Android APK files are the standard app package for Android. They are a slightly custom version of JAR format. Basically, they are JAR files with standard files included in them, a custom padding method, and now a new custom signature format. The first signature format was just a JAR signature.
Previously, with 1:5.29-2, APK files seemed to be always detected as JAR files. Now sometimes they are detected as ZIP files: $ file unsigned/aarddict.android_26.apk unsigned/aarddict.android_26.apk: Java archive data (JAR) $ file tmp/aarddict.android_26.apk tmp/aarddict.android_26.apk: Zip archive data, at least v2.0 to extract You can get those two files here: unsigned/aarddict.android_26.apk https://verification.f-droid.org/aarddict.android_26.apk tmp/aarddict.android_26.apk https://f-droid.org/repo/aarddict.android_26.apk