just wanted to tell you about an important apk signing change that broke install of my app on all android >= 7.0.
Since I published my app a few years ago I was using
apksigner to sign the apk and then
zipalign on the already signed apk.
Somehow android >= 7.0 throws the following error if you modify the apk with
zipalign once it’s signed :
INSTALL_PARSE_FAILED_NO_CERTIFICATES: Failed to collect certificates from /data/app/vmdl24783944.tmp/base.apk: META-INF/CERT.SF indicates /data/app/vmdl24783944.tmp/base.apk is signed using APK Signature Scheme v2, but no such signature was found. Signature stripped?
Maybe you don’t even know your apk has this problem so I hope this helps, because I had quite some users from the play store writing me emails that they can’t install the app. In the end I realized they all had android >= 7.0 and could reproduce the problem with an emulator.