Twig 1.8.5
The build no longer embeds Android Gradle Plugin's dependency metadata in the APK. That block is an inventory of the libraries used, encrypted so that only Google can read it, and it exists for Play Console's vulnerability scanning; in a build distributed anywhere else it is 5.8 KB of content nobody can review. Removing it is also what lets F-Droid accept the APK, since their scanner rejects opaque extra blocks in the signing area.
Which build to download
Twig-1.8.5-libre.apk is free software throughout, and is what F-Droid builds. Twig-1.8.5-full.apk adds read-only RAR support through junrar, which is under the UnRAR licence and is not free software — see LICENSE-EXCEPTIONS.md. The flavours differ in RAR alone.
Both carry arm64-v8a and x86_64, and both are signed with the same key, so either installs over the other without uninstalling.
Verifying the download
Twig-1.8.5-libre.apk 0b42e20c74512e173d2e5cf9e22ad4223e17a2ab835812553cec945792a9ff0e
Twig-1.8.5-full.apk 6030e2c3e5185e29ddc56405aa27bc1e67b1afa86b246628ba07df1592e847b8
Signing cert CN=Twig, O=Twig
Cert SHA-256 196f633e942bf4f32f875b98c8ff181138256ba329a63364e3a39f154c1a5e62