unable to install update apk

[nanderer]

I have installed harmony music, if i remember right through the GitHub release, now it dose not play new songs anymore, only previously downloaded. I would like to update and get it to run again, I dont want to uninstall it cause i would loose all my songs. But no package lets me install as update

Thats the version ive got, i tired couple GitHub downloads and to get sure it isn't it the newest fdroid, have a look at my termux output

~ $ uname -a
Linux localhost 5.4.233 #1 SMP PREEMPT Wed Jan 10 19:02:55 CST 2024 aarch64 Android
~ $ cd /sdcard
/sdcard $ cd Download
/sdcard/Download $ ls *harmony*apk
com.anandnet.harmonymusic_22.apk   harmonymusicv1.10.31-arm64-v8a.apk
harmonymusicv1.10.0.apk            harmonymusicv1.11.0-arm64-v8a.apk
harmonymusicv1.10.1-arm64-v8a.apk  harmonymusicv1.11.0.apk
harmonymusicv1.10.2-arm64-v8a.apk
/sdcard/Download $ sha256sum *harmony*apk
b815f090d54eab9e938a879a1c4f7b88f57ce4c09149974e7525757f998102e0  com.anandnet.harmonymusic_22.apk
23b541d8bce07109827a3186f7454996633ef49bc392d941018bf23bd6ceda91  harmonymusicv1.10.0.apk
f09942cfb8603b910d48cb68f33b97d16c3eb422a00a232b1f8dcb1b0a82bf75  harmonymusicv1.10.1-arm64-v8a.apk
e4106c492ba943f58e7e8f1bb1029f3f1ec771b9f8d16600042b7ea34135eea6  harmonymusicv1.10.2-arm64-v8a.apk
74df882c5b5d39ced56415aee6a8e4824254398e12a38c4b209fb02de36b09dd  harmonymusicv1.10.31-arm64-v8a.apk
7cd8732e621180313519db5cd2a91a017be49032154a0f4ae1a57a6ec963aea6  harmonymusicv1.11.0-arm64-v8a.apk
bce824fd5b7bcd555c3fefa63c60e9ae0e2e1fb244ca9874129edf04549a8a32  harmonymusicv1.11.0.apk

Here you see the signatures of packages in my downloads, that one marching the version above is probably what is currently installed, all 1.11 /22 is what i tried and failed.

I would apprichiate any help on this

Regards

[nanderer]

Meaning: cant install do to conflict with currently installed package

[nanderer]

And as you can see by there is a high probability by evidence of the contents of my downloads i was able to update fine across versions so far. I assume there is a specific update pass or change of certificate...

[anandnet]

The git apk signing key has changed this reason unfortunately you won't be update app, working version is v1.11.0.

Please create a backup, uninstall old one,

Install new v1.11.0 and restore.

Also, github apk and fdroid apk are not compatible with each other due to different signing key so app cannot be updated using cross source apk.