PSA: We switched signing keys for our Pixelfed for Android app.
If you are having issues updating to the latest version (1.0.0.44), we suggest deleting the Pixelfed app from your Android device, then re-installing the APK from https://pixelfed.org/mobile-apps
We've submitted our app to the Play Store for an open beta, and look forward to distributing the app via Play Store and F-Droid in the near future!
We appreciate your patience during this beta period!