SOLUTION: You uploaded an APK with an invalid signature - digest

So I have had a couple of clients contact me with recent issues with publishing and updating Google play apps.
So I have had a couple of clients contact me with recent issues with publishing and updating Google play apps. It seems there are issues with some older .keystore certs and apps and google are no longer allowing you to update the app (or sign new ones) using the algorithm SHA-256. From my research, it looks like its caused…

Resolved - [Redmi 8] FM Radio does not work, Unofficial Xiaomi European Community

HPKP: HTTP Public Key Pinning

android - Error while trying to upload APK to Google Play - Stack Overflow

SOLUTION: You uploaded an APK with an invalid signature - digest algorithm SHA-256 / Signature RSA — GameSalad Forums

java - Invalid signature file digest for Manifest main attributes exception while trying to run jar file - Stack Overflow

4. Using Technology in a Safe Way — Android Application Secure Design/Secure Coding Guidebook 2022-01-17 documentation

android - Upload new APK to Alpha - failed - Stack Overflow

SOLUTION: You uploaded an APK with an invalid signature - digest algorithm SHA-256 / Signature RSA — GameSalad Forums

Configuring DexProtector for Android

You uploaded an APK with an invalid signature error when uploading unsigned APK to Play Store · Issue #961 · pwa-builder/PWABuilder · GitHub

You uploaded an apk with an invalid signature - Discuss - Kodular Community

Develocity Maven Extension User Manual

You uploaded an APK with an invalid signature error when uploading unsigned APK to Play Store · Issue #961 · pwa-builder/PWABuilder · GitHub