This is a minor patch for v0.1.26 that mainly fixes repeated crashing on older Android versions (7 through 9, potentially up to 12) under certain configurations.
See release notes for v0.1.26 which is a major release that added Japanese among other changes.
To install through Obtainium, simply go to Add App and paste this repo URL in the source URL: https://github.com/futo-org/android-keyboard. Adding it may take a while depending on your internet speed as the APK needs to be downloaded.